TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana
AU  - Novaković, Mirjana
AU  - Rajić, Vladimir
AU  - Romhanji, Endre
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7159
AB  - The Fe-bearing intermetallic phases present in the as-cast AA6026 alloy and their evolution during homogenization treatments at 480-550°C were investigated using optical microscopy, SEM, and TEM techniques in combination with EDS analysis. In addition to the α-Al(Fe,Mn)Si phase with dendritic morphology, two types of plate-like Fe-bearing microconstituents were revealed in the microstructure of the as-cast alloy. The EDS microanalysis and electron diffraction showed that one set of platelets represented thin sections of α-Al(Fe,Mn)Si microconstituent. The other set of plate-like microconstituents was identified as a tetragonal, silicon-rich δ-Al4(Fe,Mn)Si2 phase. The formation of the δ-Al4(Fe,Mn)Si2 phase was attributed to the chemical composition of the alloy. During homogenization, the metastable δ-Al4(Fe,Mn)Si2 transformed into the α-Al(Fe,Mn)Si phase and fragmented. The dendritic α-Al(Fe,Mn)Si microconstituents underwent fragmentation. However, while the α-Al(Fe,Mn)Si microconstituents preserved a b.c.c. crystal lattice throughout the process, the product of the transformation of the δ-Al4(Fe,Mn)Si2 phase exhibited primitive cubic lattice.
AB  - Ispitivanje prisustva faza koje sadrže Fe u mikrostrukturi livene legure AA6026, kao i njihova evolucija tokom postupaka
homogenizacije na temperaturama od 480-550 °C, sprovedena su korišćenjem optičke mikroskopije, skenirajuće
elektronske mikroskopije (SEM) i transmisione elektronske mikroskopije (TEM) u kombinaciji sa analizom EDS-a. Osim
faze α-Al(Fe,Mn)Si sa dendritskom morfologijom, identifikovane su dve vrste pločastih mikrokonstituenata koji sadrže Fe
u mikrostrukturi livene legure. EDS mikroanaliza i elektronska difrakcija pokazali su da jedan skup ploča predstavlja samo
tanke sekcije mikrokonstituente α-Al(Fe,Mn)Si. Drugi skup pločastih mikrokonstituenata identifikovan je kao četvrtasta,
silicijumom bogata faza δ-Al4
(Fe,Mn)Si2
. Formiranje faze δ-Al4
(Fe,Mn)Si2
 povezano je sa hemijskim sastavom legure.
Tokom homogenizacije, metastabilna faza δ-Al4
(Fe,Mn)Si2
 transformisala se u fazu α-Al(Fe,Mn)Si i fragmentirala.
Dendritski mikrokonstituenti α-Al(Fe,Mn)Si takođe su fragmentirali. Međutim, dok su mikrokonstituenti α-Al(Fe,Mn)Si
sačuvali kubnu kristalnu rešetku tipa b.c.c. tokom procesa, proizvod transformacije faze δ-Al4(Fe,Mn)Si2
 pokazao je prostu
kubnu rešetku.
PB  - Technical Faculty in Bor
T2  - Journal of Mining and Metallurgy, Section B: Metallurgy
T1  - IDENTIFICATION OF Fe-BEARING PHASES IN THE AS-CAST MICROSTRUCTURE OF AA6026 ALLOY AND THEIR EVOLUTION DURING HOMOGENIZATION TREATMENT
T1  - PREPOZNAVANJE FAZA KOJE SADRŽE Fe U MIKROSTRUKTURI LIVENE LEGURE AA6026 I NJIHOVA EVOLUCIJA TOKOM POSTUPKA HOMOGENIZACIJE
EP  - 338
IS  - 2
SP  - 327
VL  - 59
DO  - 10.2298/JMMB230611028R
ER  - 

@article{
author = "Radetić, Tamara and Popović, Miljana and Novaković, Mirjana and Rajić, Vladimir and Romhanji, Endre",
year = "2023",
abstract = "The Fe-bearing intermetallic phases present in the as-cast AA6026 alloy and their evolution during homogenization treatments at 480-550°C were investigated using optical microscopy, SEM, and TEM techniques in combination with EDS analysis. In addition to the α-Al(Fe,Mn)Si phase with dendritic morphology, two types of plate-like Fe-bearing microconstituents were revealed in the microstructure of the as-cast alloy. The EDS microanalysis and electron diffraction showed that one set of platelets represented thin sections of α-Al(Fe,Mn)Si microconstituent. The other set of plate-like microconstituents was identified as a tetragonal, silicon-rich δ-Al4(Fe,Mn)Si2 phase. The formation of the δ-Al4(Fe,Mn)Si2 phase was attributed to the chemical composition of the alloy. During homogenization, the metastable δ-Al4(Fe,Mn)Si2 transformed into the α-Al(Fe,Mn)Si phase and fragmented. The dendritic α-Al(Fe,Mn)Si microconstituents underwent fragmentation. However, while the α-Al(Fe,Mn)Si microconstituents preserved a b.c.c. crystal lattice throughout the process, the product of the transformation of the δ-Al4(Fe,Mn)Si2 phase exhibited primitive cubic lattice., Ispitivanje prisustva faza koje sadrže Fe u mikrostrukturi livene legure AA6026, kao i njihova evolucija tokom postupaka
homogenizacije na temperaturama od 480-550 °C, sprovedena su korišćenjem optičke mikroskopije, skenirajuće
elektronske mikroskopije (SEM) i transmisione elektronske mikroskopije (TEM) u kombinaciji sa analizom EDS-a. Osim
faze α-Al(Fe,Mn)Si sa dendritskom morfologijom, identifikovane su dve vrste pločastih mikrokonstituenata koji sadrže Fe
u mikrostrukturi livene legure. EDS mikroanaliza i elektronska difrakcija pokazali su da jedan skup ploča predstavlja samo
tanke sekcije mikrokonstituente α-Al(Fe,Mn)Si. Drugi skup pločastih mikrokonstituenata identifikovan je kao četvrtasta,
silicijumom bogata faza δ-Al4
(Fe,Mn)Si2
. Formiranje faze δ-Al4
(Fe,Mn)Si2
 povezano je sa hemijskim sastavom legure.
Tokom homogenizacije, metastabilna faza δ-Al4
(Fe,Mn)Si2
 transformisala se u fazu α-Al(Fe,Mn)Si i fragmentirala.
Dendritski mikrokonstituenti α-Al(Fe,Mn)Si takođe su fragmentirali. Međutim, dok su mikrokonstituenti α-Al(Fe,Mn)Si
sačuvali kubnu kristalnu rešetku tipa b.c.c. tokom procesa, proizvod transformacije faze δ-Al4(Fe,Mn)Si2
 pokazao je prostu
kubnu rešetku.",
publisher = "Technical Faculty in Bor",
journal = "Journal of Mining and Metallurgy, Section B: Metallurgy",
title = "IDENTIFICATION OF Fe-BEARING PHASES IN THE AS-CAST MICROSTRUCTURE OF AA6026 ALLOY AND THEIR EVOLUTION DURING HOMOGENIZATION TREATMENT, PREPOZNAVANJE FAZA KOJE SADRŽE Fe U MIKROSTRUKTURI LIVENE LEGURE AA6026 I NJIHOVA EVOLUCIJA TOKOM POSTUPKA HOMOGENIZACIJE",
pages = "338-327",
number = "2",
volume = "59",
doi = "10.2298/JMMB230611028R"
}

Radetić, T., Popović, M., Novaković, M., Rajić, V.,& Romhanji, E.. (2023). IDENTIFICATION OF Fe-BEARING PHASES IN THE AS-CAST MICROSTRUCTURE OF AA6026 ALLOY AND THEIR EVOLUTION DURING HOMOGENIZATION TREATMENT. in Journal of Mining and Metallurgy, Section B: Metallurgy
Technical Faculty in Bor., 59(2), 327-338.
https://doi.org/10.2298/JMMB230611028R

Radetić T, Popović M, Novaković M, Rajić V, Romhanji E. IDENTIFICATION OF Fe-BEARING PHASES IN THE AS-CAST MICROSTRUCTURE OF AA6026 ALLOY AND THEIR EVOLUTION DURING HOMOGENIZATION TREATMENT. in Journal of Mining and Metallurgy, Section B: Metallurgy. 2023;59(2):327-338.
doi:10.2298/JMMB230611028R .

Radetić, Tamara, Popović, Miljana, Novaković, Mirjana, Rajić, Vladimir, Romhanji, Endre, "IDENTIFICATION OF Fe-BEARING PHASES IN THE AS-CAST MICROSTRUCTURE OF AA6026 ALLOY AND THEIR EVOLUTION DURING HOMOGENIZATION TREATMENT" in Journal of Mining and Metallurgy, Section B: Metallurgy, 59, no. 2 (2023):327-338,
https://doi.org/10.2298/JMMB230611028R . .

TY  - CONF
AU  - Ćitić, Aleksandar
AU  - Popović, Miljana
AU  - Radetić, Tamara
AU  - Ghulam Isaq Khan, Muhamad
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7244
AB  - There is renewed interest in microstructure development at the different stages of the thermomechanical processing (TMP) of the 5xxx series aluminum alloys due to the increased
demand for sheet material with excellent mechanical properties and formability. This study
investigates how homogenization conditions affect the processes of dissolution and
precipitation of secondary phases and, further down the processing line, the recrystallization
behavior of Al-Mg alloy AA5182. ...
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
T1  - The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy
SP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7244
ER  - 

@conference{
author = "Ćitić, Aleksandar and Popović, Miljana and Radetić, Tamara and Ghulam Isaq Khan, Muhamad",
year = "2023",
abstract = "There is renewed interest in microstructure development at the different stages of the thermomechanical processing (TMP) of the 5xxx series aluminum alloys due to the increased
demand for sheet material with excellent mechanical properties and formability. This study
investigates how homogenization conditions affect the processes of dissolution and
precipitation of secondary phases and, further down the processing line, the recrystallization
behavior of Al-Mg alloy AA5182. ...",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia",
title = "The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy",
pages = "77",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7244"
}

Ćitić, A., Popović, M., Radetić, T.,& Ghulam Isaq Khan, M.. (2023). The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 77.
https://hdl.handle.net/21.15107/rcub_technorep_7244

Ćitić A, Popović M, Radetić T, Ghulam Isaq Khan M. The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia. 2023;:77.
https://hdl.handle.net/21.15107/rcub_technorep_7244 .

Ćitić, Aleksandar, Popović, Miljana, Radetić, Tamara, Ghulam Isaq Khan, Muhamad, "The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy" in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia (2023):77,
https://hdl.handle.net/21.15107/rcub_technorep_7244 .

TY  - CONF
AU  - Ghulam Isaq Khan, Muhamad
AU  - Rajković, Filip
AU  - Popović, Miljana
AU  - Prelević, Dejan
AU  - Ćitić, Aleksandar
AU  - Radetić, Tamara
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7249
AB  - In this work, we investigate the role of crystallographic texture on the onset of abnormal grain growth
(AGG) in AA5182 alloy. TMP included 65% cold-rolling reduction and isothermal annealing at 480°C at
various times. The microstructure characterization by optical microscopy in polarized light revealed that
AGG starts after holding for 5 min at 480°C. Further investigation of the sample with incipient abnormal
grains was conducted by an SEM equipped with an EBSD detector. The incipient abnormal grains appear
to have an orientation of minor texture components, i.e. different cube variants, most likely due to the
enhanced grain boundary mobility. However, texture fails to explain the difference in the propensity toward
AGG in the region close to the sheet surface and its center, which is likely caused by the non-uniform
distribution of the intermetallic particles.
PB  - Bor : University of Belgrade, Technical Faculty
C3  - Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia
T1  - Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture
EP  - 484
SP  - 481
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7249
ER  - 

@conference{
author = "Ghulam Isaq Khan, Muhamad and Rajković, Filip and Popović, Miljana and Prelević, Dejan and Ćitić, Aleksandar and Radetić, Tamara",
year = "2023",
abstract = "In this work, we investigate the role of crystallographic texture on the onset of abnormal grain growth
(AGG) in AA5182 alloy. TMP included 65% cold-rolling reduction and isothermal annealing at 480°C at
various times. The microstructure characterization by optical microscopy in polarized light revealed that
AGG starts after holding for 5 min at 480°C. Further investigation of the sample with incipient abnormal
grains was conducted by an SEM equipped with an EBSD detector. The incipient abnormal grains appear
to have an orientation of minor texture components, i.e. different cube variants, most likely due to the
enhanced grain boundary mobility. However, texture fails to explain the difference in the propensity toward
AGG in the region close to the sheet surface and its center, which is likely caused by the non-uniform
distribution of the intermetallic particles.",
publisher = "Bor : University of Belgrade, Technical Faculty",
journal = "Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia",
title = "Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture",
pages = "484-481",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7249"
}

Ghulam Isaq Khan, M., Rajković, F., Popović, M., Prelević, D., Ćitić, A.,& Radetić, T.. (2023). Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture. in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia
Bor : University of Belgrade, Technical Faculty., 481-484.
https://hdl.handle.net/21.15107/rcub_technorep_7249

Ghulam Isaq Khan M, Rajković F, Popović M, Prelević D, Ćitić A, Radetić T. Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture. in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia. 2023;:481-484.
https://hdl.handle.net/21.15107/rcub_technorep_7249 .

Ghulam Isaq Khan, Muhamad, Rajković, Filip, Popović, Miljana, Prelević, Dejan, Ćitić, Aleksandar, Radetić, Tamara, "Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture" in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia (2023):481-484,
https://hdl.handle.net/21.15107/rcub_technorep_7249 .

TY  - CONF
AU  - Ghulam Isaq Khan, Muhamad
AU  - Rajković, Filip
AU  - Popović, Miljana
AU  - Prelević, Dejan
AU  - Ćitić, Aleksandar
AU  - Radetić, Tamara
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7250
AB  - Studies of recrystallization and grain growth phenomena have a long history, but the causes of abnormal grain growth (AGG) are not well understood. We report on the results of the study of the occurrence of AGG in Al-Mg alloy AA5182. The industrially produced hot band underwent various routes of thermo-mechanical processing: inter-annealing, cold rolling with reductions ranging from 40-85% followed by isochronal anneal (1h) in the temperature range 350-520°C or isothermal treatment at 480°C for various times. The microstructural characterization was conducted by optical microscopy in polarized light and FEG SEM, while the EBSD technique was used for microtexture analysis of the selected states. The results showed that the temperature for the onset of the AGG decreases as the degree of cold reduction increases. The abnormal grains start to appear in the regions close to the surface, i.e., within 1.5 mm from it in the inter-annealed 12 mm thick hot band or 700 μm in the case of cold rolled sheet with 64% reduction. Initially equiaxed, abnormal grains show strong growth anisotropy with much faster growth in the rolling than in the normal direction. Growth anisotropy was attributed to the rod-like shape and alignment of Al6Mn dispersoids through Zener pinning. With extended annealing, bands of abnormal grains form parallel to the surfaces. Microtexture analysis of the sample with incipient abnormal grains showed the presence of retained rolling texture components in the form of R-fibre. In contrast, the incipient abnormal grains appear to have orientations of cube variants, the texture components which are at or below random level. Since the texture is similar throughout the sheet, it is likely that the AGG starts first in the surface region due to the non-uniform deformation and distribution of the intermetallic particles.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
T1  - Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy
SP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7250
ER  - 

@conference{
author = "Ghulam Isaq Khan, Muhamad and Rajković, Filip and Popović, Miljana and Prelević, Dejan and Ćitić, Aleksandar and Radetić, Tamara",
year = "2023",
abstract = "Studies of recrystallization and grain growth phenomena have a long history, but the causes of abnormal grain growth (AGG) are not well understood. We report on the results of the study of the occurrence of AGG in Al-Mg alloy AA5182. The industrially produced hot band underwent various routes of thermo-mechanical processing: inter-annealing, cold rolling with reductions ranging from 40-85% followed by isochronal anneal (1h) in the temperature range 350-520°C or isothermal treatment at 480°C for various times. The microstructural characterization was conducted by optical microscopy in polarized light and FEG SEM, while the EBSD technique was used for microtexture analysis of the selected states. The results showed that the temperature for the onset of the AGG decreases as the degree of cold reduction increases. The abnormal grains start to appear in the regions close to the surface, i.e., within 1.5 mm from it in the inter-annealed 12 mm thick hot band or 700 μm in the case of cold rolled sheet with 64% reduction. Initially equiaxed, abnormal grains show strong growth anisotropy with much faster growth in the rolling than in the normal direction. Growth anisotropy was attributed to the rod-like shape and alignment of Al6Mn dispersoids through Zener pinning. With extended annealing, bands of abnormal grains form parallel to the surfaces. Microtexture analysis of the sample with incipient abnormal grains showed the presence of retained rolling texture components in the form of R-fibre. In contrast, the incipient abnormal grains appear to have orientations of cube variants, the texture components which are at or below random level. Since the texture is similar throughout the sheet, it is likely that the AGG starts first in the surface region due to the non-uniform deformation and distribution of the intermetallic particles.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia",
title = "Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy",
pages = "61",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7250"
}

Ghulam Isaq Khan, M., Rajković, F., Popović, M., Prelević, D., Ćitić, A.,& Radetić, T.. (2023). Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 61.
https://hdl.handle.net/21.15107/rcub_technorep_7250

Ghulam Isaq Khan M, Rajković F, Popović M, Prelević D, Ćitić A, Radetić T. Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia. 2023;:61.
https://hdl.handle.net/21.15107/rcub_technorep_7250 .

Ghulam Isaq Khan, Muhamad, Rajković, Filip, Popović, Miljana, Prelević, Dejan, Ćitić, Aleksandar, Radetić, Tamara, "Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy" in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia (2023):61,
https://hdl.handle.net/21.15107/rcub_technorep_7250 .

TY  - CONF
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Surudžić, Rade
AU  - Vukašinović-Sekulić, Maja
AU  - Kojić, Vesna
AU  - Radetić, Tamara
AU  - Mišković-Stanković, Vesna
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6761
AB  - Recent advances in biomaterials science are increasingly focused
on (re)search for next-generation soft tissue regeneration solutions.
Hydrogel-based materials are becoming a focal point to address
many tissue engineering requirements, possessing exceptional biocompatibility,
with tailorable shape, structure and mechanical
properties, as well as infinite possibilities drug delivery. The widespread
antibiotics use has led to aggravated resistance issues in many
bacterial strains, so the focus is increasingly shifted towards alternative
antibacterial solutions such as silver nanoparticles (AgNPs).
In this work, we have developed novel composite materials based on
poly(vinyl alcohol)/chitosan (PVA/CHI) and poly(vinyl alcohol)/
chitosan/graphene (PVA/CHI/Gr) hydrogels with silver nanoparticles
obtained through green in situ constant-voltage electrochemical
synthesis. The obtained AgNPs’ properties, sizes and size
distributions were examined using UV-visible spectroscopy, dynamic
light scattering and transmission electron microscopy. In vitro
swelling and silver release kinetics were monitored in the simulated
physiological conditions (pH7.4, 37  C). The obtained release and
swelling isotherms were fitted with several theoretical models that
helped discern the mechanisms of these processes. Tensile testing
was carried out to examine the composites’ mechanical behavior and
elasticity – important properties for soft tissue engineering materials.
Finally, the excellent antibacterial activity of the obtained silver/
poly(vinyl alcohol)/chitosan (Ag/PVA/CHI) and silver/poly(vinyl
alcohol)/chitosan/graphene (Ag/PVA/CHI/Gr) hydrogels against
Staphylococcus aureus and Escherichia coli was confirmed quantitatively
by colony counting method, and their non-toxicity was
verified towards two model fibroblast cell lines (MRC-5 and L929)
utilizing the MTT assay. Through thorough characterization, the
obtained nanocomposite hydrogel materials were identified as strong
candidates for active antibacterial soft tissue engineering materials.
PB  - Mary Ann Liebert, Inc.
C3  - Tissue Engineering Part A
T1  - Silver Nanoparticles-Loaded Poly(Vinyl Alcohol)/Chitosan/Graphene Hydrogels Obtained by Electrochemical Synthesis
IS  - S1
SP  - S-132
VL  - 28
DO  - 10.1089/ten.tea.2022.29025.abstracts
ER  - 

@conference{
author = "Nešović, Katarina and Janković, Ana and Surudžić, Rade and Vukašinović-Sekulić, Maja and Kojić, Vesna and Radetić, Tamara and Mišković-Stanković, Vesna",
year = "2022",
abstract = "Recent advances in biomaterials science are increasingly focused
on (re)search for next-generation soft tissue regeneration solutions.
Hydrogel-based materials are becoming a focal point to address
many tissue engineering requirements, possessing exceptional biocompatibility,
with tailorable shape, structure and mechanical
properties, as well as infinite possibilities drug delivery. The widespread
antibiotics use has led to aggravated resistance issues in many
bacterial strains, so the focus is increasingly shifted towards alternative
antibacterial solutions such as silver nanoparticles (AgNPs).
In this work, we have developed novel composite materials based on
poly(vinyl alcohol)/chitosan (PVA/CHI) and poly(vinyl alcohol)/
chitosan/graphene (PVA/CHI/Gr) hydrogels with silver nanoparticles
obtained through green in situ constant-voltage electrochemical
synthesis. The obtained AgNPs’ properties, sizes and size
distributions were examined using UV-visible spectroscopy, dynamic
light scattering and transmission electron microscopy. In vitro
swelling and silver release kinetics were monitored in the simulated
physiological conditions (pH7.4, 37  C). The obtained release and
swelling isotherms were fitted with several theoretical models that
helped discern the mechanisms of these processes. Tensile testing
was carried out to examine the composites’ mechanical behavior and
elasticity – important properties for soft tissue engineering materials.
Finally, the excellent antibacterial activity of the obtained silver/
poly(vinyl alcohol)/chitosan (Ag/PVA/CHI) and silver/poly(vinyl
alcohol)/chitosan/graphene (Ag/PVA/CHI/Gr) hydrogels against
Staphylococcus aureus and Escherichia coli was confirmed quantitatively
by colony counting method, and their non-toxicity was
verified towards two model fibroblast cell lines (MRC-5 and L929)
utilizing the MTT assay. Through thorough characterization, the
obtained nanocomposite hydrogel materials were identified as strong
candidates for active antibacterial soft tissue engineering materials.",
publisher = "Mary Ann Liebert, Inc.",
journal = "Tissue Engineering Part A",
title = "Silver Nanoparticles-Loaded Poly(Vinyl Alcohol)/Chitosan/Graphene Hydrogels Obtained by Electrochemical Synthesis",
number = "S1",
pages = "S-132",
volume = "28",
doi = "10.1089/ten.tea.2022.29025.abstracts"
}

Nešović, K., Janković, A., Surudžić, R., Vukašinović-Sekulić, M., Kojić, V., Radetić, T.,& Mišković-Stanković, V.. (2022). Silver Nanoparticles-Loaded Poly(Vinyl Alcohol)/Chitosan/Graphene Hydrogels Obtained by Electrochemical Synthesis. in Tissue Engineering Part A
Mary Ann Liebert, Inc.., 28(S1), S-132.
https://doi.org/10.1089/ten.tea.2022.29025.abstracts

Nešović K, Janković A, Surudžić R, Vukašinović-Sekulić M, Kojić V, Radetić T, Mišković-Stanković V. Silver Nanoparticles-Loaded Poly(Vinyl Alcohol)/Chitosan/Graphene Hydrogels Obtained by Electrochemical Synthesis. in Tissue Engineering Part A. 2022;28(S1):S-132.
doi:10.1089/ten.tea.2022.29025.abstracts .

Nešović, Katarina, Janković, Ana, Surudžić, Rade, Vukašinović-Sekulić, Maja, Kojić, Vesna, Radetić, Tamara, Mišković-Stanković, Vesna, "Silver Nanoparticles-Loaded Poly(Vinyl Alcohol)/Chitosan/Graphene Hydrogels Obtained by Electrochemical Synthesis" in Tissue Engineering Part A, 28, no. S1 (2022):S-132,
https://doi.org/10.1089/ten.tea.2022.29025.abstracts . .

TY  - CONF
AU  - Ghulam Isaq Khan, Muhamad
AU  - Popović, Miljana
AU  - Radetić, Tamara
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7262
AB  - U završnoj fazi prerade Al-Mg legura, pojava abnormalnih zrna (AGG) u strukturi je
nepoželjna, jer dovodi do pogoršanja mehaničkih osobina. Medjutim, postoji veliki interes
za proučavanjem uticaja AGG, koja nastaju u toku medjužarenja, na razvoj mikrostrukture
i teksture tokom dalje prerade. Naime, odredjene teksturne komponente i tipovi granica
zrna imaju pozitivan uticaj na deformaciono i koroziono ponašanje.U ovom radu je opisan
efekat uslova medjužarenja i hemijskog sastava na mikrostrukturu Al-Mg legura. Uzorci,
izohrono žareni na temperaturama 350-550°C,ili tretirani na 520°C pri različitim
vremenima, su ispitivani optičkom mikroskopijom u polarizovanom svetlu. Utvrdjeno je
da je AGG ograničen na pojas u blizini ivice uzorka. Abnormalna zrna poseduju visok
stepen anizotropije, a inicijalno brz rast stagnira sa produžetkom žarenja. Uticaj hemijskog
sastava na pojavu AGG je ispitivan u slučaju četiri legure i rezultati su pokazali da niži
sadržaj legirajućih elemenata pospešuje AGG.
AB  - During final annealing of Al-Mg alloys, abnormal grain growth (AGG) is undesirableasit
deteriorates mechanical properties. However, there is interest to investigate how the
introduction of the AGG during intermediate annealing affects microstructure and texture
development upon further processing.It is known that certain texture components and grain
boundary types can affect formabilityand IGC susceptibility. In this study, the effect of
intermediate annealing conditions andchemical composition on the microstructure of of
Al-Mg alloysis reported. The specimens,annealed isochronally at temperatures of 350-
550°C or isothermally at 520°C for various times, were examined by optical microscopy in
polarized light. It is found that the AGG is confined to a band near the surface.There is
astrong anisotropy in grains shape and initially rapid grain growth stagnates with
furtherannealing. The influence of the chemical composition on the AGG was investigated
in four alloys and the results showed that the decrease in the alloying elementscontent
promoted AGG.
PB  - Beograd : Srpsko hemijsko društvo = Serbian Chemical Society
C3  - Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022
T1  - Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama
T1  - Abnormal grain growth during intermediate annealing of Al-Mg alloys
SP  - 103
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7262
ER  - 

@conference{
author = "Ghulam Isaq Khan, Muhamad and Popović, Miljana and Radetić, Tamara",
year = "2022",
abstract = "U završnoj fazi prerade Al-Mg legura, pojava abnormalnih zrna (AGG) u strukturi je
nepoželjna, jer dovodi do pogoršanja mehaničkih osobina. Medjutim, postoji veliki interes
za proučavanjem uticaja AGG, koja nastaju u toku medjužarenja, na razvoj mikrostrukture
i teksture tokom dalje prerade. Naime, odredjene teksturne komponente i tipovi granica
zrna imaju pozitivan uticaj na deformaciono i koroziono ponašanje.U ovom radu je opisan
efekat uslova medjužarenja i hemijskog sastava na mikrostrukturu Al-Mg legura. Uzorci,
izohrono žareni na temperaturama 350-550°C,ili tretirani na 520°C pri različitim
vremenima, su ispitivani optičkom mikroskopijom u polarizovanom svetlu. Utvrdjeno je
da je AGG ograničen na pojas u blizini ivice uzorka. Abnormalna zrna poseduju visok
stepen anizotropije, a inicijalno brz rast stagnira sa produžetkom žarenja. Uticaj hemijskog
sastava na pojavu AGG je ispitivan u slučaju četiri legure i rezultati su pokazali da niži
sadržaj legirajućih elemenata pospešuje AGG., During final annealing of Al-Mg alloys, abnormal grain growth (AGG) is undesirableasit
deteriorates mechanical properties. However, there is interest to investigate how the
introduction of the AGG during intermediate annealing affects microstructure and texture
development upon further processing.It is known that certain texture components and grain
boundary types can affect formabilityand IGC susceptibility. In this study, the effect of
intermediate annealing conditions andchemical composition on the microstructure of of
Al-Mg alloysis reported. The specimens,annealed isochronally at temperatures of 350-
550°C or isothermally at 520°C for various times, were examined by optical microscopy in
polarized light. It is found that the AGG is confined to a band near the surface.There is
astrong anisotropy in grains shape and initially rapid grain growth stagnates with
furtherannealing. The influence of the chemical composition on the AGG was investigated
in four alloys and the results showed that the decrease in the alloying elementscontent
promoted AGG.",
publisher = "Beograd : Srpsko hemijsko društvo = Serbian Chemical Society",
journal = "Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022",
title = "Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama, Abnormal grain growth during intermediate annealing of Al-Mg alloys",
pages = "103",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7262"
}

Ghulam Isaq Khan, M., Popović, M.,& Radetić, T.. (2022). Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama. in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022
Beograd : Srpsko hemijsko društvo = Serbian Chemical Society., 103.
https://hdl.handle.net/21.15107/rcub_technorep_7262

Ghulam Isaq Khan M, Popović M, Radetić T. Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama. in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022. 2022;:103.
https://hdl.handle.net/21.15107/rcub_technorep_7262 .

Ghulam Isaq Khan, Muhamad, Popović, Miljana, Radetić, Tamara, "Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama" in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022 (2022):103,
https://hdl.handle.net/21.15107/rcub_technorep_7262 .

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana
AU  - Alil, Ana
AU  - Markoli, Boštjan
AU  - Naglič, Iztok
AU  - Romhanji, Endre
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5022
AB  - To evaluate the effect of homogenization conditions on the possible loss of low-melting-point Pb and Bi to the surface in the free-cutting AA6026 alloy, three homogenization regimes were applied: 480 degrees C/12 h, 530 degrees C/12 h, and 550 degrees C/6 h. The microstructural characterization by optical, scanning, and transmission electron microscopy coupled with EDS analysis, macroanalysis of chemical composition by ICP-AES as well tensile tests at room and 500 degrees C, and Charpy impact test were employed to evaluate the different homogenization regimes. It was found that the choice of homogenization temperature had no significant effect on the level of loss of low-melting point elements. The optimal homogenization regime appeared to be 550 degrees C/ 6 h as it led to almost complete beta-AlFeSi -> alpha-AlFe(Mn)Si transformation and beta-Mg2Si dissolution resulting in improved mechanical properties. The presence of the liquid phase did not lead to catastrophic failure due to the liquid metal embrittlement of the aluminum matrix, but the wetting of Fe,Mn - bearing constituents by molten Pb led to decohesion of the constituents. The morphological change to globular alpha-AlFe(Mn)Si decreased the surface area and interconnectivity of the microconstituents, which improved the hot ductility. During cooling after homogenization at T > 500 degrees C, the Q-phase precipitated, pointing up the potential quench sensitivity of the alloy. However, precipitation of the Q-phase laths in dispersoid-free zones reduced strain localization and improved room temperature ductility and impact toughness.
PB  - Elsevier Ltd.
T2  - Journal of Alloys and Compounds
T1  - Effect of homogenization temperature on microstructure and mechanical properties of Al-Mg-Si alloy containing low-melting point elements
SP  - 163719
VL  - 902
DO  - 10.1016/j.jallcom.2022.163719
ER  - 

@article{
author = "Radetić, Tamara and Popović, Miljana and Alil, Ana and Markoli, Boštjan and Naglič, Iztok and Romhanji, Endre",
year = "2022",
abstract = "To evaluate the effect of homogenization conditions on the possible loss of low-melting-point Pb and Bi to the surface in the free-cutting AA6026 alloy, three homogenization regimes were applied: 480 degrees C/12 h, 530 degrees C/12 h, and 550 degrees C/6 h. The microstructural characterization by optical, scanning, and transmission electron microscopy coupled with EDS analysis, macroanalysis of chemical composition by ICP-AES as well tensile tests at room and 500 degrees C, and Charpy impact test were employed to evaluate the different homogenization regimes. It was found that the choice of homogenization temperature had no significant effect on the level of loss of low-melting point elements. The optimal homogenization regime appeared to be 550 degrees C/ 6 h as it led to almost complete beta-AlFeSi -> alpha-AlFe(Mn)Si transformation and beta-Mg2Si dissolution resulting in improved mechanical properties. The presence of the liquid phase did not lead to catastrophic failure due to the liquid metal embrittlement of the aluminum matrix, but the wetting of Fe,Mn - bearing constituents by molten Pb led to decohesion of the constituents. The morphological change to globular alpha-AlFe(Mn)Si decreased the surface area and interconnectivity of the microconstituents, which improved the hot ductility. During cooling after homogenization at T > 500 degrees C, the Q-phase precipitated, pointing up the potential quench sensitivity of the alloy. However, precipitation of the Q-phase laths in dispersoid-free zones reduced strain localization and improved room temperature ductility and impact toughness.",
publisher = "Elsevier Ltd.",
journal = "Journal of Alloys and Compounds",
title = "Effect of homogenization temperature on microstructure and mechanical properties of Al-Mg-Si alloy containing low-melting point elements",
pages = "163719",
volume = "902",
doi = "10.1016/j.jallcom.2022.163719"
}

Radetić, T., Popović, M., Alil, A., Markoli, B., Naglič, I.,& Romhanji, E.. (2022). Effect of homogenization temperature on microstructure and mechanical properties of Al-Mg-Si alloy containing low-melting point elements. in Journal of Alloys and Compounds
Elsevier Ltd.., 902, 163719.
https://doi.org/10.1016/j.jallcom.2022.163719

Radetić T, Popović M, Alil A, Markoli B, Naglič I, Romhanji E. Effect of homogenization temperature on microstructure and mechanical properties of Al-Mg-Si alloy containing low-melting point elements. in Journal of Alloys and Compounds. 2022;902:163719.
doi:10.1016/j.jallcom.2022.163719 .

Radetić, Tamara, Popović, Miljana, Alil, Ana, Markoli, Boštjan, Naglič, Iztok, Romhanji, Endre, "Effect of homogenization temperature on microstructure and mechanical properties of Al-Mg-Si alloy containing low-melting point elements" in Journal of Alloys and Compounds, 902 (2022):163719,
https://doi.org/10.1016/j.jallcom.2022.163719 . .

Romhanji, E., Radetić, T., Popović, M., Filipović, M., Marinković, J.,& Cvetanović, B.. (2021). Tehnologija presovanja АА6026 legure. 
Tehnološko metalurški fakultet, Univerzitet u Beogradu..
https://hdl.handle.net/21.15107/rcub_technorep_7263

Romhanji E, Radetić T, Popović M, Filipović M, Marinković J, Cvetanović B. Tehnologija presovanja АА6026 legure. 2021;.
https://hdl.handle.net/21.15107/rcub_technorep_7263 .

Romhanji, Endre, Radetić, Tamara, Popović, Miljana, Filipović, Mirjana, Marinković, Jelena, Cvetanović, Bratislav, "Tehnologija presovanja АА6026 legure" (2021),
https://hdl.handle.net/21.15107/rcub_technorep_7263 .

TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Radetić, Tamara
AU  - Perić-Grujić, Aleksandra
AU  - Vukašinović-Sekulić, Maja
AU  - Kojić, Vesna
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4495
AB  - Polymer-based hydrogel materials are excellent candidates for new-generation wound dressings with improved properties, such as high sorption ability, good mechanical properties and low adhesiveness. Cross-linked hydrogel matrices also serve as excellent carriers for controlled release of antibacterial agents, such as silver nanoparticles (AgNPs), which are preferred over conventional antibiotics due to low propensity to induce bacterial resistance. In this work, we aim to produce novel silver/poly(vinyl alcohol)/chitosan (Ag/PVA/CHI) hydrogels for wound dressing applications. The electrochemical AgNPs synthesis provided facile and green method for the reduction of Ag+ ions inside the hydrogel matrices, without the need to use toxic chemical reducing agents. The formation of AgNPs was confirmed using UV-visible spectroscopy, scanning and transmission electron microscopy. Release kinetics was investigated in modified phosphate buffer solution at 37 degrees C to mimic physiological conditions. Release profiles indicated "burst release" behavior, which is beneficial for wound dressing applications. The antibacterial activity was evaluated against Staphylococcus aureus and Escherichia coli strains using disc-diffusion test, and non-toxicity of hydrogels was proved by dye-exclusion test. The obtained results confirmed strong potential of Ag/PVA/CHI hydrogels for biomedical applications.
PB  - Int Assoc Physical Chemists-Iapc, Zagreb
T2  - Journal of Electrochemical Science and Engineering
T1  - Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications
EP  - 198
IS  - 2
SP  - 185
VL  - 10
DO  - 10.5599/jese.732
ER  - 

@article{
author = "Nešović, Katarina and Janković, Ana and Radetić, Tamara and Perić-Grujić, Aleksandra and Vukašinović-Sekulić, Maja and Kojić, Vesna and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2020",
abstract = "Polymer-based hydrogel materials are excellent candidates for new-generation wound dressings with improved properties, such as high sorption ability, good mechanical properties and low adhesiveness. Cross-linked hydrogel matrices also serve as excellent carriers for controlled release of antibacterial agents, such as silver nanoparticles (AgNPs), which are preferred over conventional antibiotics due to low propensity to induce bacterial resistance. In this work, we aim to produce novel silver/poly(vinyl alcohol)/chitosan (Ag/PVA/CHI) hydrogels for wound dressing applications. The electrochemical AgNPs synthesis provided facile and green method for the reduction of Ag+ ions inside the hydrogel matrices, without the need to use toxic chemical reducing agents. The formation of AgNPs was confirmed using UV-visible spectroscopy, scanning and transmission electron microscopy. Release kinetics was investigated in modified phosphate buffer solution at 37 degrees C to mimic physiological conditions. Release profiles indicated "burst release" behavior, which is beneficial for wound dressing applications. The antibacterial activity was evaluated against Staphylococcus aureus and Escherichia coli strains using disc-diffusion test, and non-toxicity of hydrogels was proved by dye-exclusion test. The obtained results confirmed strong potential of Ag/PVA/CHI hydrogels for biomedical applications.",
publisher = "Int Assoc Physical Chemists-Iapc, Zagreb",
journal = "Journal of Electrochemical Science and Engineering",
title = "Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications",
pages = "198-185",
number = "2",
volume = "10",
doi = "10.5599/jese.732"
}

Nešović, K., Janković, A., Radetić, T., Perić-Grujić, A., Vukašinović-Sekulić, M., Kojić, V., Rhee, K. Y.,& Mišković-Stanković, V.. (2020). Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications. in Journal of Electrochemical Science and Engineering
Int Assoc Physical Chemists-Iapc, Zagreb., 10(2), 185-198.
https://doi.org/10.5599/jese.732

Nešović K, Janković A, Radetić T, Perić-Grujić A, Vukašinović-Sekulić M, Kojić V, Rhee KY, Mišković-Stanković V. Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications. in Journal of Electrochemical Science and Engineering. 2020;10(2):185-198.
doi:10.5599/jese.732 .

Nešović, Katarina, Janković, Ana, Radetić, Tamara, Perić-Grujić, Aleksandra, Vukašinović-Sekulić, Maja, Kojić, Vesna, Rhee, Kyong Yop, Mišković-Stanković, Vesna, "Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications" in Journal of Electrochemical Science and Engineering, 10, no. 2 (2020):185-198,
https://doi.org/10.5599/jese.732 . .

Romhanji, E., Popović, M., Radetić, T., Filipović, M., Alil, A., Bulatović, B.,& Filipović, D.. (2020). Tehnološki režim proizvodnje specijalnog kvalieta EN AW 5182 Al-Mg legure sa poboljšanim mehaničkim osobinama na nivou zahteva 5182 RTSG1. in Tehnološko-metalurški fakultet
Tehnološko-metalurški fakultet., 1-23.
https://hdl.handle.net/21.15107/rcub_technorep_6235

Romhanji E, Popović M, Radetić T, Filipović M, Alil A, Bulatović B, Filipović D. Tehnološki režim proizvodnje specijalnog kvalieta EN AW 5182 Al-Mg legure sa poboljšanim mehaničkim osobinama na nivou zahteva 5182 RTSG1. in Tehnološko-metalurški fakultet. 2020;:1-23.
https://hdl.handle.net/21.15107/rcub_technorep_6235 .

Romhanji, Endre, Popović, Miljana, Radetić, Tamara, Filipović, Mirjana, Alil, Ana, Bulatović, Budimir, Filipović, Dušica, "Tehnološki režim proizvodnje specijalnog kvalieta EN AW 5182 Al-Mg legure sa poboljšanim mehaničkim osobinama na nivou zahteva 5182 RTSG1" in Tehnološko-metalurški fakultet (2020):1-23,
https://hdl.handle.net/21.15107/rcub_technorep_6235 .

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana
AU  - Romhanji, Endre
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4535
AB  - The propensity of an alloy toward an abnormal grain growth (AGG) severely limits the annealing temperature range, capability for hot forming, and deteriorates mechanical properties. In this work, the results of a study of the effect of thermo-mechanical processing (TMP) of Al-Mg alloy AA5182 on the AGG are reported. TMP included cold rolling with a reduction range of 40-85 % followed by isochronal annealing (1 h) in a temperature range of 350-520 degrees C or isothermal treatment at 480 degrees C for different periods of time. The microstructure was characterized using optical microscopy in polarized light and an FEG SEM. The results showed that an increase in the degree of reduction lowers the annealing temperature for the onset of the AGG, while an increase in the annealing temperature increases the extent of the AGG for a given cold reduction. The abnormal grains tended to form in the region close to the surface of the plates, and with extended annealing bands. develope parallel to the surfaces in the rolling direction. However, no appreciable grain growth occurred in the plate center. The AGG and grain-boundary mobility showed a strong anisotropy with a much faster lateral growth than the motion of the growth front normal to the plate surface. Such anisotropy was attributed to the rod-like shape and alignment of Al6Mn dispersoids through Zener pinning.
PB  - Inst Za Kovinske Materiale I In Tehnologie, Ljubjana
T2  - Materiali in Tehnologije
T1  - Influence of cold-rolling deformation and annealing temperature on the grain growth of al-4%mg-mn alloy
EP  - 90
IS  - 1
SP  - 85
VL  - 54
DO  - 10.17222/mit.2019.134
ER  - 

@article{
author = "Radetić, Tamara and Popović, Miljana and Romhanji, Endre",
year = "2020",
abstract = "The propensity of an alloy toward an abnormal grain growth (AGG) severely limits the annealing temperature range, capability for hot forming, and deteriorates mechanical properties. In this work, the results of a study of the effect of thermo-mechanical processing (TMP) of Al-Mg alloy AA5182 on the AGG are reported. TMP included cold rolling with a reduction range of 40-85 % followed by isochronal annealing (1 h) in a temperature range of 350-520 degrees C or isothermal treatment at 480 degrees C for different periods of time. The microstructure was characterized using optical microscopy in polarized light and an FEG SEM. The results showed that an increase in the degree of reduction lowers the annealing temperature for the onset of the AGG, while an increase in the annealing temperature increases the extent of the AGG for a given cold reduction. The abnormal grains tended to form in the region close to the surface of the plates, and with extended annealing bands. develope parallel to the surfaces in the rolling direction. However, no appreciable grain growth occurred in the plate center. The AGG and grain-boundary mobility showed a strong anisotropy with a much faster lateral growth than the motion of the growth front normal to the plate surface. Such anisotropy was attributed to the rod-like shape and alignment of Al6Mn dispersoids through Zener pinning.",
publisher = "Inst Za Kovinske Materiale I In Tehnologie, Ljubjana",
journal = "Materiali in Tehnologije",
title = "Influence of cold-rolling deformation and annealing temperature on the grain growth of al-4%mg-mn alloy",
pages = "90-85",
number = "1",
volume = "54",
doi = "10.17222/mit.2019.134"
}

Radetić, T., Popović, M.,& Romhanji, E.. (2020). Influence of cold-rolling deformation and annealing temperature on the grain growth of al-4%mg-mn alloy. in Materiali in Tehnologije
Inst Za Kovinske Materiale I In Tehnologie, Ljubjana., 54(1), 85-90.
https://doi.org/10.17222/mit.2019.134

Radetić T, Popović M, Romhanji E. Influence of cold-rolling deformation and annealing temperature on the grain growth of al-4%mg-mn alloy. in Materiali in Tehnologije. 2020;54(1):85-90.
doi:10.17222/mit.2019.134 .

Radetić, Tamara, Popović, Miljana, Romhanji, Endre, "Influence of cold-rolling deformation and annealing temperature on the grain growth of al-4%mg-mn alloy" in Materiali in Tehnologije, 54, no. 1 (2020):85-90,
https://doi.org/10.17222/mit.2019.134 . .

TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Perić-Grujić, Aleksandra
AU  - Vukašinović-Sekulić, Maja
AU  - Radetić, Tamara
AU  - Živković, Ljiljana
AU  - Park, Soo Jin
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4239
AB  - Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly (vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV-vis spectroscopy (UV-vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity.
PB  - Elsevier Science Inc, New York
T2  - Journal of Industrial and Engineering Chemistry
T1  - Kinetic models of swelling and thermal stability of silver/poly(vinyl Check far alcohol)/chitosan/graphene hydrogels
EP  - 96
SP  - 83
VL  - 77
DO  - 10.1016/j.jiec.2019.04.022
ER  - 

@article{
author = "Nešović, Katarina and Janković, Ana and Perić-Grujić, Aleksandra and Vukašinović-Sekulić, Maja and Radetić, Tamara and Živković, Ljiljana and Park, Soo Jin and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2019",
abstract = "Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly (vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV-vis spectroscopy (UV-vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Kinetic models of swelling and thermal stability of silver/poly(vinyl Check far alcohol)/chitosan/graphene hydrogels",
pages = "96-83",
volume = "77",
doi = "10.1016/j.jiec.2019.04.022"
}

Nešović, K., Janković, A., Perić-Grujić, A., Vukašinović-Sekulić, M., Radetić, T., Živković, L., Park, S. J., Rhee, K. Y.,& Mišković-Stanković, V.. (2019). Kinetic models of swelling and thermal stability of silver/poly(vinyl Check far alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry
Elsevier Science Inc, New York., 77, 83-96.
https://doi.org/10.1016/j.jiec.2019.04.022

Nešović K, Janković A, Perić-Grujić A, Vukašinović-Sekulić M, Radetić T, Živković L, Park SJ, Rhee KY, Mišković-Stanković V. Kinetic models of swelling and thermal stability of silver/poly(vinyl Check far alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry. 2019;77:83-96.
doi:10.1016/j.jiec.2019.04.022 .

Nešović, Katarina, Janković, Ana, Perić-Grujić, Aleksandra, Vukašinović-Sekulić, Maja, Radetić, Tamara, Živković, Ljiljana, Park, Soo Jin, Rhee, Kyong Yop, Mišković-Stanković, Vesna, "Kinetic models of swelling and thermal stability of silver/poly(vinyl Check far alcohol)/chitosan/graphene hydrogels" in Journal of Industrial and Engineering Chemistry, 77 (2019):83-96,
https://doi.org/10.1016/j.jiec.2019.04.022 . .

TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Perić-Grujić, Aleksandra
AU  - Vukašinović-Sekulić, Maja
AU  - Radetić, Tamara
AU  - Živković, Ljiljana
AU  - Park, Soo Jin
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5044
AB  - Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly(vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV–vis spectroscopy (UV–vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier-transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity.
PB  - Korean Society of Industrial Engineering Chemistry
T2  - Journal of Industrial and Engineering Chemistry
T1  - Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels
EP  - 96
SP  - 83
VL  - 77
DO  - 10.1016/j.jiec.2019.04.022
ER  - 

@article{
author = "Nešović, Katarina and Janković, Ana and Perić-Grujić, Aleksandra and Vukašinović-Sekulić, Maja and Radetić, Tamara and Živković, Ljiljana and Park, Soo Jin and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2019",
abstract = "Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly(vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV–vis spectroscopy (UV–vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier-transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity.",
publisher = "Korean Society of Industrial Engineering Chemistry",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels",
pages = "96-83",
volume = "77",
doi = "10.1016/j.jiec.2019.04.022"
}

Nešović, K., Janković, A., Perić-Grujić, A., Vukašinović-Sekulić, M., Radetić, T., Živković, L., Park, S. J., Rhee, K. Y.,& Mišković-Stanković, V.. (2019). Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry
Korean Society of Industrial Engineering Chemistry., 77, 83-96.
https://doi.org/10.1016/j.jiec.2019.04.022

Nešović K, Janković A, Perić-Grujić A, Vukašinović-Sekulić M, Radetić T, Živković L, Park SJ, Rhee KY, Mišković-Stanković V. Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry. 2019;77:83-96.
doi:10.1016/j.jiec.2019.04.022 .

Nešović, Katarina, Janković, Ana, Perić-Grujić, Aleksandra, Vukašinović-Sekulić, Maja, Radetić, Tamara, Živković, Ljiljana, Park, Soo Jin, Rhee, Kyong Yop, Mišković-Stanković, Vesna, "Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels" in Journal of Industrial and Engineering Chemistry, 77 (2019):83-96,
https://doi.org/10.1016/j.jiec.2019.04.022 . .

TY  - CONF
AU  - Mišković-Stanković, Vesna
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Radetić, Tamara
AU  - Perić-Grujić, Aleksandra
AU  - Vukašinović-Sekulić, Maja
AU  - Kojić, Vesna
AU  - Yop Rhee, Kyong
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7245
AB  - In recent times, polymer-based hydrogel materials have presented themselves as excellent candidates for
new-generation wound dressings with improved properties, such as high sorption ability, good mechanical
properties and low adhesiveness [1]. Additionally, cross linked hydrogel matrices serve as excellent carriers
for controlled release of antibacterial agents, such as silver nanoparticles (Ag/NPs), which are preferred over
conventional antibiotics due to multi-phase mechanism of action and low susceptibility to induce bacterial
resistance [2]. In this work, we aim to produce novel silver/poly(vinyl alcohol)/chitosan (Ag/PVA/CHI)
hydrogels for wound dressing applications. The electrochemical route for AgNPs synthesis provided facile
and green method for the reduction of Ag+
ions inside the hydrogel matrices, without the need to use toxic
chemical reducing agents [3]. The effect of chitosan content on the synthesis yield, antibacterial properties,
swelling and release kinetics was investigated. The formation of AgNPs was confirmed using UV-visible
spectroscopy through the appearance of plasmon resonant peaks at around 400 nm (Figure 1a), whereas
transmission electron microscopy (TEM) proved the incorporation of both single and polycrystalline spherical
AgNPs with diameters of 5-10 nm (Figure 1b). The swelling and silver release kinetics were investigated in
modified phosphate buffer solutions (pH 7.4) at 37 °C to mimic physiological conditions. The obtained
swelling isotherms and release profiles were fitted with different models to obtain kinetic and diffusion
parameters (Figure 1c). The antibacterial activity was evaluated against Staphylococcus aureus TL and
Escherichia coli ATCC 25922 bacterial strains using an in-suspension test, and non-toxicity of both silvercontaining and silver-free hydrogels was proved by MTT cytotoxicity test. The obtained results confirmed
strong potential of Ag/PVA/CHI hydrogels for biomedical applications.
PB  - International Association of Physical Chemists
C3  - Book of abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019
T1  - Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications
SP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7245
ER  - 

@conference{
author = "Mišković-Stanković, Vesna and Nešović, Katarina and Janković, Ana and Radetić, Tamara and Perić-Grujić, Aleksandra and Vukašinović-Sekulić, Maja and Kojić, Vesna and Yop Rhee, Kyong",
year = "2019",
abstract = "In recent times, polymer-based hydrogel materials have presented themselves as excellent candidates for
new-generation wound dressings with improved properties, such as high sorption ability, good mechanical
properties and low adhesiveness [1]. Additionally, cross linked hydrogel matrices serve as excellent carriers
for controlled release of antibacterial agents, such as silver nanoparticles (Ag/NPs), which are preferred over
conventional antibiotics due to multi-phase mechanism of action and low susceptibility to induce bacterial
resistance [2]. In this work, we aim to produce novel silver/poly(vinyl alcohol)/chitosan (Ag/PVA/CHI)
hydrogels for wound dressing applications. The electrochemical route for AgNPs synthesis provided facile
and green method for the reduction of Ag+
ions inside the hydrogel matrices, without the need to use toxic
chemical reducing agents [3]. The effect of chitosan content on the synthesis yield, antibacterial properties,
swelling and release kinetics was investigated. The formation of AgNPs was confirmed using UV-visible
spectroscopy through the appearance of plasmon resonant peaks at around 400 nm (Figure 1a), whereas
transmission electron microscopy (TEM) proved the incorporation of both single and polycrystalline spherical
AgNPs with diameters of 5-10 nm (Figure 1b). The swelling and silver release kinetics were investigated in
modified phosphate buffer solutions (pH 7.4) at 37 °C to mimic physiological conditions. The obtained
swelling isotherms and release profiles were fitted with different models to obtain kinetic and diffusion
parameters (Figure 1c). The antibacterial activity was evaluated against Staphylococcus aureus TL and
Escherichia coli ATCC 25922 bacterial strains using an in-suspension test, and non-toxicity of both silvercontaining and silver-free hydrogels was proved by MTT cytotoxicity test. The obtained results confirmed
strong potential of Ag/PVA/CHI hydrogels for biomedical applications.",
publisher = "International Association of Physical Chemists",
journal = "Book of abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019",
title = "Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications",
pages = "121",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7245"
}

Mišković-Stanković, V., Nešović, K., Janković, A., Radetić, T., Perić-Grujić, A., Vukašinović-Sekulić, M., Kojić, V.,& Yop Rhee, K.. (2019). Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications. in Book of abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019
International Association of Physical Chemists., 121.
https://hdl.handle.net/21.15107/rcub_technorep_7245

Mišković-Stanković V, Nešović K, Janković A, Radetić T, Perić-Grujić A, Vukašinović-Sekulić M, Kojić V, Yop Rhee K. Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications. in Book of abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019. 2019;:121.
https://hdl.handle.net/21.15107/rcub_technorep_7245 .

Mišković-Stanković, Vesna, Nešović, Katarina, Janković, Ana, Radetić, Tamara, Perić-Grujić, Aleksandra, Vukašinović-Sekulić, Maja, Kojić, Vesna, Yop Rhee, Kyong, "Poly(vinyl alcohol)/chitosan hydrogels with electrochemically synthesized silver nanoparticles for wound dressing applications" in Book of abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019 (2019):121,
https://hdl.handle.net/21.15107/rcub_technorep_7245 .

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana
AU  - Gligorijević, Bojan
AU  - Alil, Ana
AU  - Romhanji, Endre
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4047
AB  - The occurrence of abnormal grain growth (AGG) in AA5182 alloy during annealing imposes severe restrictions on processing parameters and deteriorates mechanical properties. In this work, we investigated the effect of chemical composition on the appearance of abnormal grain growth by varying Mg and Mn content in the range of composition limits for standard AA5182 alloy, 4.0-5.0% Mg, and 0.2-0.5% Mn, respectively. Thermo-mechanical processing of alloys included cold rolling with reductions ranging from 40 to 85%, followed by annealing in the temperature range from 350 to 520 degrees C. The results showed that the rise in alloying elements content drives the onset of abnormal grain growth toward higher temperatures. The increase in the cold rolling reduction degree promotes abnormal grain growth and lowers its onset temperature. Abnormal grain growth and grain boundary mobility showed strong anisotropy related to rod-like shape and alignment of Al6Mn(Fe) dispersoids through Zener pinning.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - The influence of Mg and Mn content on abnormal grain growth in AA5182 type alloys
EP  - 323
IS  - 4
SP  - 315
VL  - 25
DO  - 10.30544/463
ER  - 

@article{
author = "Radetić, Tamara and Popović, Miljana and Gligorijević, Bojan and Alil, Ana and Romhanji, Endre",
year = "2019",
abstract = "The occurrence of abnormal grain growth (AGG) in AA5182 alloy during annealing imposes severe restrictions on processing parameters and deteriorates mechanical properties. In this work, we investigated the effect of chemical composition on the appearance of abnormal grain growth by varying Mg and Mn content in the range of composition limits for standard AA5182 alloy, 4.0-5.0% Mg, and 0.2-0.5% Mn, respectively. Thermo-mechanical processing of alloys included cold rolling with reductions ranging from 40 to 85%, followed by annealing in the temperature range from 350 to 520 degrees C. The results showed that the rise in alloying elements content drives the onset of abnormal grain growth toward higher temperatures. The increase in the cold rolling reduction degree promotes abnormal grain growth and lowers its onset temperature. Abnormal grain growth and grain boundary mobility showed strong anisotropy related to rod-like shape and alignment of Al6Mn(Fe) dispersoids through Zener pinning.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "The influence of Mg and Mn content on abnormal grain growth in AA5182 type alloys",
pages = "323-315",
number = "4",
volume = "25",
doi = "10.30544/463"
}

Radetić, T., Popović, M., Gligorijević, B., Alil, A.,& Romhanji, E.. (2019). The influence of Mg and Mn content on abnormal grain growth in AA5182 type alloys. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 25(4), 315-323.
https://doi.org/10.30544/463

Radetić T, Popović M, Gligorijević B, Alil A, Romhanji E. The influence of Mg and Mn content on abnormal grain growth in AA5182 type alloys. in Metallurgical & Materials Engineering. 2019;25(4):315-323.
doi:10.30544/463 .

Radetić, Tamara, Popović, Miljana, Gligorijević, Bojan, Alil, Ana, Romhanji, Endre, "The influence of Mg and Mn content on abnormal grain growth in AA5182 type alloys" in Metallurgical & Materials Engineering, 25, no. 4 (2019):315-323,
https://doi.org/10.30544/463 . .

TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Radetić, Tamara
AU  - Vukašinović-Sekulić, Maja
AU  - Kojić, Vesna
AU  - Živković, Ljiljana
AU  - Perić-Grujić, Aleksandra
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4113
AB  - In this work, we provide a facile path for the preparation of wound dressing materials with improved characteristics based on biocompatible chitosan and poly(vinyl alcohol) hydrogels with embedded silver nanoparticles (AgNPs) as a potent antimicrobial agent. The hydrogels were prepared via freezing-thawing method, whereas AgNPs were synthesized via an in situ electrochemical route. The excellent physicochemical properties of the obtained nanocomposite hydrogels were validated using different spectroscopic and microscopic techniques. The formation of sub-10 nm AgNPs was confirmed by UV-visible spectroscopy, dynamic light scattering and transmission electron microscopy. Swelling and silver release profiles were validated using several diffusion models. The hydrogels were proven to be non-cytotoxic using MTT test and possessed powerful antibacterial activity against Staphylococcus aureus and Escherichia coli, as determined by test in suspension, which affirmed their feasibility for wound dressing applications.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - European Polymer Journal
T1  - Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles - In vitro study
VL  - 121
DO  - 10.1016/j.eurpolymj.2019.109257
ER  - 

@article{
author = "Nešović, Katarina and Janković, Ana and Radetić, Tamara and Vukašinović-Sekulić, Maja and Kojić, Vesna and Živković, Ljiljana and Perić-Grujić, Aleksandra and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2019",
abstract = "In this work, we provide a facile path for the preparation of wound dressing materials with improved characteristics based on biocompatible chitosan and poly(vinyl alcohol) hydrogels with embedded silver nanoparticles (AgNPs) as a potent antimicrobial agent. The hydrogels were prepared via freezing-thawing method, whereas AgNPs were synthesized via an in situ electrochemical route. The excellent physicochemical properties of the obtained nanocomposite hydrogels were validated using different spectroscopic and microscopic techniques. The formation of sub-10 nm AgNPs was confirmed by UV-visible spectroscopy, dynamic light scattering and transmission electron microscopy. Swelling and silver release profiles were validated using several diffusion models. The hydrogels were proven to be non-cytotoxic using MTT test and possessed powerful antibacterial activity against Staphylococcus aureus and Escherichia coli, as determined by test in suspension, which affirmed their feasibility for wound dressing applications.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles - In vitro study",
volume = "121",
doi = "10.1016/j.eurpolymj.2019.109257"
}

Nešović, K., Janković, A., Radetić, T., Vukašinović-Sekulić, M., Kojić, V., Živković, L., Perić-Grujić, A., Rhee, K. Y.,& Mišković-Stanković, V.. (2019). Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles - In vitro study. in European Polymer Journal
Pergamon-Elsevier Science Ltd, Oxford., 121.
https://doi.org/10.1016/j.eurpolymj.2019.109257

Nešović K, Janković A, Radetić T, Vukašinović-Sekulić M, Kojić V, Živković L, Perić-Grujić A, Rhee KY, Mišković-Stanković V. Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles - In vitro study. in European Polymer Journal. 2019;121.
doi:10.1016/j.eurpolymj.2019.109257 .

Nešović, Katarina, Janković, Ana, Radetić, Tamara, Vukašinović-Sekulić, Maja, Kojić, Vesna, Živković, Ljiljana, Perić-Grujić, Aleksandra, Rhee, Kyong Yop, Mišković-Stanković, Vesna, "Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles - In vitro study" in European Polymer Journal, 121 (2019),
https://doi.org/10.1016/j.eurpolymj.2019.109257 . .

TY  - CONF
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Radetić, Tamara
AU  - Kojić, Vesna
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7246
AB  - Nauka i inženjerstvo biomaterijala u poslednje vreme pokazuju sve veću težnju ka
pronalaženju novih materijala za obloge za rane, gde su naročito važna poboljšana svojstva
kao što su apsorpciona moć, mehanička svojstva i niska adhezivnost. Umrežene matrice
hidrogelova su odlični potencijalni nosači za kontrolisano otpuštanje antibakterijskih
agenasa, kao što su nanočestice srebra. Hitozan je posebno interesantna komponenta
obloga za rane, zbog svoje prirodne antibakterijske aktivnosti i sposobnosti stabilizacije
nanočestica. Cilj ovog rada je priprema novih obloga za rane na bazi polivinil-alkohola i
hitozana sa elektrohemijski sintetisanim nanočesticama srebra, u obliku hidrogela. Dobijene
su sferne nanočestice srebra, prečnika oko 5-10 nm, što je potvrđeno UV-vidljivom
spektroskopijom i transmisionom elektronskom mikroskopijom. Bubrenje i otpuštanje
srebra je praćeno u fosfatnom puferu koji imitira fiziološke uslove, dok je antibakterijska
aktivnost potvrđena na bakterijskim sojevima Staphylococcus aureus i Escherichia coli.
Dobijeni netoksični hidrogelovi (što je utvrđeno MTT testom) imaju izuzetan potencijal za
primene kao obloge za rane nove generacije.
AB  - Recently, the biomaterials science and engineering fields have seen a shift towards novel
hydrogel materials, especially for wound dressing applications where improved properties,
such as high sorption ability, good mechanical properties and low adhesiveness are of
utmost importance. The cross linked hydrogel matrices are excellent potential carriers for
controlled release of antibacterial agents, such as silver nanoparticles (AgNPs). Chitosan is
an especially attractive option for wound dressing applications, because of its intrinsic
antibacterial activity and the ability to stabilize AgNPs. The aim of this work is the production
of poly(vinyl alcohol) and chitosan based hydrogel matrices with electrochemically
synthesized AgNPs for wound dressing materials applications. The obtained AgNPs were
spherical with 5-10 nm diameters, as confirmed by UV-visible spectroscopy and
transmission electron microscopy. The swelling and release behaviors of AgNP-embedded
hydrogels were evaluated in phosphate buffer, mimicking physiological environment, and
the antibacterial activity was confirmed against both Staphylococcus aureus and Escherichia
coli. The obtained non-toxic hydrogel materials (as affirmed by MTT test) have excellent
potential to be used as novel antibacterial wound dressings.
PB  - Beograd : Srpsko hemijsko društvo
C3  - Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019
T1  - Novi materijali za obloge za rane sa elektrohemijski sintetisanim nanočesticama srebra
T1  - Novel wound dressing materials containing electrochemically synthesized silver nanoparticles
SP  - 27
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7246
ER  - 

@conference{
author = "Nešović, Katarina and Janković, Ana and Radetić, Tamara and Kojić, Vesna and Mišković-Stanković, Vesna",
year = "2019",
abstract = "Nauka i inženjerstvo biomaterijala u poslednje vreme pokazuju sve veću težnju ka
pronalaženju novih materijala za obloge za rane, gde su naročito važna poboljšana svojstva
kao što su apsorpciona moć, mehanička svojstva i niska adhezivnost. Umrežene matrice
hidrogelova su odlični potencijalni nosači za kontrolisano otpuštanje antibakterijskih
agenasa, kao što su nanočestice srebra. Hitozan je posebno interesantna komponenta
obloga za rane, zbog svoje prirodne antibakterijske aktivnosti i sposobnosti stabilizacije
nanočestica. Cilj ovog rada je priprema novih obloga za rane na bazi polivinil-alkohola i
hitozana sa elektrohemijski sintetisanim nanočesticama srebra, u obliku hidrogela. Dobijene
su sferne nanočestice srebra, prečnika oko 5-10 nm, što je potvrđeno UV-vidljivom
spektroskopijom i transmisionom elektronskom mikroskopijom. Bubrenje i otpuštanje
srebra je praćeno u fosfatnom puferu koji imitira fiziološke uslove, dok je antibakterijska
aktivnost potvrđena na bakterijskim sojevima Staphylococcus aureus i Escherichia coli.
Dobijeni netoksični hidrogelovi (što je utvrđeno MTT testom) imaju izuzetan potencijal za
primene kao obloge za rane nove generacije., Recently, the biomaterials science and engineering fields have seen a shift towards novel
hydrogel materials, especially for wound dressing applications where improved properties,
such as high sorption ability, good mechanical properties and low adhesiveness are of
utmost importance. The cross linked hydrogel matrices are excellent potential carriers for
controlled release of antibacterial agents, such as silver nanoparticles (AgNPs). Chitosan is
an especially attractive option for wound dressing applications, because of its intrinsic
antibacterial activity and the ability to stabilize AgNPs. The aim of this work is the production
of poly(vinyl alcohol) and chitosan based hydrogel matrices with electrochemically
synthesized AgNPs for wound dressing materials applications. The obtained AgNPs were
spherical with 5-10 nm diameters, as confirmed by UV-visible spectroscopy and
transmission electron microscopy. The swelling and release behaviors of AgNP-embedded
hydrogels were evaluated in phosphate buffer, mimicking physiological environment, and
the antibacterial activity was confirmed against both Staphylococcus aureus and Escherichia
coli. The obtained non-toxic hydrogel materials (as affirmed by MTT test) have excellent
potential to be used as novel antibacterial wound dressings.",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019",
title = "Novi materijali za obloge za rane sa elektrohemijski sintetisanim nanočesticama srebra, Novel wound dressing materials containing electrochemically synthesized silver nanoparticles",
pages = "27",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7246"
}

Nešović, K., Janković, A., Radetić, T., Kojić, V.,& Mišković-Stanković, V.. (2019). Novi materijali za obloge za rane sa elektrohemijski sintetisanim nanočesticama srebra. in Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019
Beograd : Srpsko hemijsko društvo., 27.
https://hdl.handle.net/21.15107/rcub_technorep_7246

Nešović K, Janković A, Radetić T, Kojić V, Mišković-Stanković V. Novi materijali za obloge za rane sa elektrohemijski sintetisanim nanočesticama srebra. in Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019. 2019;:27.
https://hdl.handle.net/21.15107/rcub_technorep_7246 .

Nešović, Katarina, Janković, Ana, Radetić, Tamara, Kojić, Vesna, Mišković-Stanković, Vesna, "Novi materijali za obloge za rane sa elektrohemijski sintetisanim nanočesticama srebra" in Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019 (2019):27,
https://hdl.handle.net/21.15107/rcub_technorep_7246 .

TY  - CONF
AU  - Radetić, Tamara
AU  - Gligorijević, Bojan
AU  - Filipović, Mirjana
AU  - Popović, Miljana
AU  - Romhanji, Endre
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7297
AB  - The subject of this study has been an investigation of the homogenization temperature 
effect on the microstructure of Al-Mg-Si alloy containing low-melting point Pb and Bi 
elements. The results of the characterization show that homogenization at temperatures 
lower than 500 °C requires extraordinary long in order to initiate ß-AlFeSi -> α-AlFe(Mn)Si 
transformation, necessary for good extrdability of the alloy ransformation, necessary for 
good extrudability of the alloy. In addition, precipitation of ß-Mg2Si phase takes place, 
decreasing the alloy's aging potential during the further processing. High-temperature 
homogenization not only results in complete ß-AlFeSi -> α-AlFe(Mn)Si transformation and 
dissolution of ß-Mg2Si phase but expected Pb and Bi escape to the specimen surface does 
not occur.
AB  - Predmet ovog rada je bilo ispitivanje i karakterizacija uslova homogenizacionog žarenja na 
mikrostruktu Al-Mg-Si legure legirane nisko-topivim metalima Pb i Bi. Rezultati pokazuju da 
homogenizacija na temperaturama nižim od 500 °C zahteva izuzetno duga vremena žarenja 
da bi došlo do ß-AlFeSi -> α-AlFe(Mn)Si transformacije, neophodne za sposobnost legure za 
presovanje. Dodatno, dolazi do izdvajanja ß-Mg2Si faze, čime se smanjuje sposobnost legure 
za starenje u daljoj preradi. Visoko-temperaturna homogenizacija ne samo da rezultuje u 
potpunoj ß-AlFeSi -> α-AlFe(Mn)Si transformaciji i rastvaranju ß-Mg2Si faze, već i ne dolazi 
do očekivanog gubitka Pb i Bi usled izdvajanja na površini uzoraka.
PB  - Beograd : Serbian Chemical Society
C3  - Proceedings / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018
T1  - Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements
T1  - Efekat homogenizacije na mikrostrukturu Al-Mg-Si legure koja sadrži nisko-topive elemente
EP  - 94
SP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7297
ER  - 

@conference{
author = "Radetić, Tamara and Gligorijević, Bojan and Filipović, Mirjana and Popović, Miljana and Romhanji, Endre",
year = "2018",
abstract = "The subject of this study has been an investigation of the homogenization temperature 
effect on the microstructure of Al-Mg-Si alloy containing low-melting point Pb and Bi 
elements. The results of the characterization show that homogenization at temperatures 
lower than 500 °C requires extraordinary long in order to initiate ß-AlFeSi -> α-AlFe(Mn)Si 
transformation, necessary for good extrdability of the alloy ransformation, necessary for 
good extrudability of the alloy. In addition, precipitation of ß-Mg2Si phase takes place, 
decreasing the alloy's aging potential during the further processing. High-temperature 
homogenization not only results in complete ß-AlFeSi -> α-AlFe(Mn)Si transformation and 
dissolution of ß-Mg2Si phase but expected Pb and Bi escape to the specimen surface does 
not occur., Predmet ovog rada je bilo ispitivanje i karakterizacija uslova homogenizacionog žarenja na 
mikrostruktu Al-Mg-Si legure legirane nisko-topivim metalima Pb i Bi. Rezultati pokazuju da 
homogenizacija na temperaturama nižim od 500 °C zahteva izuzetno duga vremena žarenja 
da bi došlo do ß-AlFeSi -> α-AlFe(Mn)Si transformacije, neophodne za sposobnost legure za 
presovanje. Dodatno, dolazi do izdvajanja ß-Mg2Si faze, čime se smanjuje sposobnost legure 
za starenje u daljoj preradi. Visoko-temperaturna homogenizacija ne samo da rezultuje u 
potpunoj ß-AlFeSi -> α-AlFe(Mn)Si transformaciji i rastvaranju ß-Mg2Si faze, već i ne dolazi 
do očekivanog gubitka Pb i Bi usled izdvajanja na površini uzoraka.",
publisher = "Beograd : Serbian Chemical Society",
journal = "Proceedings / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018",
title = "Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements, Efekat homogenizacije na mikrostrukturu Al-Mg-Si legure koja sadrži nisko-topive elemente",
pages = "94-89",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7297"
}

Radetić, T., Gligorijević, B., Filipović, M., Popović, M.,& Romhanji, E.. (2018). Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements. in Proceedings / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018
Beograd : Serbian Chemical Society., 89-94.
https://hdl.handle.net/21.15107/rcub_technorep_7297

Radetić T, Gligorijević B, Filipović M, Popović M, Romhanji E. Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements. in Proceedings / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018. 2018;:89-94.
https://hdl.handle.net/21.15107/rcub_technorep_7297 .

Radetić, Tamara, Gligorijević, Bojan, Filipović, Mirjana, Popović, Miljana, Romhanji, Endre, "Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements" in Proceedings / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018 (2018):89-94,
https://hdl.handle.net/21.15107/rcub_technorep_7297 .

TY  - CONF
AU  - Radetić, Tamara
AU  - Gligorijević, Bojan
AU  - Filipović, Mirjana
AU  - Popović, Miljana
AU  - Romhanji, Endre
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7298
AB  - The subject of this study has been an investigation of the homogenization temperature 
effect on the microstructure of Al-Mg-Si alloy containing low-melting point Pb and Bi 
elements. The results of the characterization show that homogenization at temperatures 
lower than 500 °C requires extraordinary long in order to initiate ß-AlFeSi -> α-AlFe(Mn)Si 
transformation, necessary for good extrdability of the alloy ransformation, necessary for 
good extrudability of the alloy. In addition, precipitation of ß-Mg2Si phase takes place, 
decreasing the alloy's aging potential during the further processing. High-temperature 
homogenization not only results in complete ß-AlFeSi -> α-AlFe(Mn)Si transformation and 
dissolution of ß-Mg2Si phase but expected Pb and Bi escape to the specimen surface does 
not occur.
AB  - Predmet ovog rada je bilo ispitivanje i karakterizacija uslova homogenizacionog žarenja na 
mikrostruktu Al-Mg-Si legure legirane nisko-topivim metalima Pb i Bi. Rezultati pokazuju da 
homogenizacija na temperaturama nižim od 500 °C zahteva izuzetno duga vremena žarenja 
da bi došlo do ß-AlFeSi -> α-AlFe(Mn)Si transformacije, neophodne za sposobnost legure za 
presovanje. Dodatno, dolazi do izdvajanja ß-Mg2Si faze, čime se smanjuje sposobnost legure 
za starenje u daljoj preradi. Visoko-temperaturna homogenizacija ne samo da rezultuje u 
potpunoj ß-AlFeSi -> α-AlFe(Mn)Si transformaciji i rastvaranju ß-Mg2Si faze, već i ne dolazi 
do očekivanog gubitka Pb i Bi usled izdvajanja na površini uzoraka.
PB  - Beograd : Serbian Chemical Society
C3  - Book of Abstracts / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018
T1  - Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements
T1  - Effekat homogenizacije na mikrostrukturu Al-Mg-Si legure koja sadrži niskotopive elemente
SP  - 37
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7298
ER  - 

@conference{
author = "Radetić, Tamara and Gligorijević, Bojan and Filipović, Mirjana and Popović, Miljana and Romhanji, Endre",
year = "2018",
abstract = "The subject of this study has been an investigation of the homogenization temperature 
effect on the microstructure of Al-Mg-Si alloy containing low-melting point Pb and Bi 
elements. The results of the characterization show that homogenization at temperatures 
lower than 500 °C requires extraordinary long in order to initiate ß-AlFeSi -> α-AlFe(Mn)Si 
transformation, necessary for good extrdability of the alloy ransformation, necessary for 
good extrudability of the alloy. In addition, precipitation of ß-Mg2Si phase takes place, 
decreasing the alloy's aging potential during the further processing. High-temperature 
homogenization not only results in complete ß-AlFeSi -> α-AlFe(Mn)Si transformation and 
dissolution of ß-Mg2Si phase but expected Pb and Bi escape to the specimen surface does 
not occur., Predmet ovog rada je bilo ispitivanje i karakterizacija uslova homogenizacionog žarenja na 
mikrostruktu Al-Mg-Si legure legirane nisko-topivim metalima Pb i Bi. Rezultati pokazuju da 
homogenizacija na temperaturama nižim od 500 °C zahteva izuzetno duga vremena žarenja 
da bi došlo do ß-AlFeSi -> α-AlFe(Mn)Si transformacije, neophodne za sposobnost legure za 
presovanje. Dodatno, dolazi do izdvajanja ß-Mg2Si faze, čime se smanjuje sposobnost legure 
za starenje u daljoj preradi. Visoko-temperaturna homogenizacija ne samo da rezultuje u 
potpunoj ß-AlFeSi -> α-AlFe(Mn)Si transformaciji i rastvaranju ß-Mg2Si faze, već i ne dolazi 
do očekivanog gubitka Pb i Bi usled izdvajanja na površini uzoraka.",
publisher = "Beograd : Serbian Chemical Society",
journal = "Book of Abstracts / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018",
title = "Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements, Effekat homogenizacije na mikrostrukturu Al-Mg-Si legure koja sadrži niskotopive elemente",
pages = "37",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7298"
}

Radetić, T., Gligorijević, B., Filipović, M., Popović, M.,& Romhanji, E.. (2018). Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements. in Book of Abstracts / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018
Beograd : Serbian Chemical Society., 37.
https://hdl.handle.net/21.15107/rcub_technorep_7298

Radetić T, Gligorijević B, Filipović M, Popović M, Romhanji E. Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements. in Book of Abstracts / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018. 2018;:37.
https://hdl.handle.net/21.15107/rcub_technorep_7298 .

Radetić, Tamara, Gligorijević, Bojan, Filipović, Mirjana, Popović, Miljana, Romhanji, Endre, "Homogenization effect on microstructure Al-Mg-Si alloy containing low-melting point elements" in Book of Abstracts / 55th meeting of the Serbian chemical society, Novi Sad, Serbia, June 8-9, 2018 (2018):37,
https://hdl.handle.net/21.15107/rcub_technorep_7298 .

TY  - CONF
AU  - Alil, Ana B.
AU  - Popović, Miljana
AU  - Radetić, Tamara
AU  - Bajat, Jelena
AU  - Romhanji, Endre
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6206
AB  - Ispitivan je uticaj stepena i načina deformacije na korozionu stabilnost legure AA5083 koja
je procesirana konvencionalnim valjanjem (CR) i akumulativnim spajanjem valjanjem (ARB).
Koroziona stabilnost je praćena standardnim elektrohemijskim metodama,
spektroskopijom elektrohemijske impedancije (EIS) i polarizacionim merenjima. Utvrđeno
je da je gustina struje korozije (jcorr) manja za najmanje jedan red veličine kod ARB višeslojnih
uzoraka. Veći stepen deformacije indukovao je bolju korozionu stabilnost CR jednoslojnih,
kao i ARB višeslojnih uzoraka. Rezultati pokazuju da je ukupna impedancija ARB višeslojnih
uzoraka više nego udvostručena u odnosu na CR jednoslojne uzorke kao rezultat višeslojne
strukture i prisustva oksidacionog filma između slojeva. Značajno veći polukrugovi na
Nyquist-ovim dijagramima za ARB uzorke ukazuju na povećanu korozionu stabilnost, koja
raste sa porastom stepena deformacije. Eksperimentalni rezultati pokazuju da način i
stepen deformacije imaju veliki uticaj na korozionu stabilnost AA5083 legure.
AB  - The influence of the degree of deformation and applied processing route on the corrosion
stability of AA5083 alloy sheets processed by conventional rolling (CR) and accumulative roll
bonding (ARB) has been studied. The corrosion stability was evaluated by standard
electrochemical methods, electrochemical impedance spectroscopy (EIS) and
potentiodynamic measurements. It was found that the corrosion current density (jcorr) is
smaller for at least one order of magnitude for ARB multilayer samples. Higher degree of
plastic deformation induced better corrosion stability, for both CR monolayer and ARB
multilayer samples. Results showed that the overall impedance value of ARB samples was
more than doubled compared to the CR samples as a result of the multilayered structure
and the presence of oxidation film between the layers. Significantly larger semicircles in
Nyquist plots for ARB samples indicate increase of corrosion stability, with increasing the
number of ARB cycles. Experimental results showed that applied processing route and the
degree of deformation have a major impact on the corrosion stability of the AA5083 alloy.
PB  - Beograd : Srpsko hemijsko društvo
C3  - Kratki izvodi radova / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018
T1  - Uticaj akumulativnog spajanja valjanjem (ARB) i konvencionalnog valjanja (CR) na korozionu stabilnost AA5083 legure
T1  - Influence of accumulative roll bonding (ARB) and conventional cold rolling (CR) on the corrosion stability of AA5083 alloy sheets
SP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6206
ER  - 

@conference{
author = "Alil, Ana B. and Popović, Miljana and Radetić, Tamara and Bajat, Jelena and Romhanji, Endre",
year = "2018",
abstract = "Ispitivan je uticaj stepena i načina deformacije na korozionu stabilnost legure AA5083 koja
je procesirana konvencionalnim valjanjem (CR) i akumulativnim spajanjem valjanjem (ARB).
Koroziona stabilnost je praćena standardnim elektrohemijskim metodama,
spektroskopijom elektrohemijske impedancije (EIS) i polarizacionim merenjima. Utvrđeno
je da je gustina struje korozije (jcorr) manja za najmanje jedan red veličine kod ARB višeslojnih
uzoraka. Veći stepen deformacije indukovao je bolju korozionu stabilnost CR jednoslojnih,
kao i ARB višeslojnih uzoraka. Rezultati pokazuju da je ukupna impedancija ARB višeslojnih
uzoraka više nego udvostručena u odnosu na CR jednoslojne uzorke kao rezultat višeslojne
strukture i prisustva oksidacionog filma između slojeva. Značajno veći polukrugovi na
Nyquist-ovim dijagramima za ARB uzorke ukazuju na povećanu korozionu stabilnost, koja
raste sa porastom stepena deformacije. Eksperimentalni rezultati pokazuju da način i
stepen deformacije imaju veliki uticaj na korozionu stabilnost AA5083 legure., The influence of the degree of deformation and applied processing route on the corrosion
stability of AA5083 alloy sheets processed by conventional rolling (CR) and accumulative roll
bonding (ARB) has been studied. The corrosion stability was evaluated by standard
electrochemical methods, electrochemical impedance spectroscopy (EIS) and
potentiodynamic measurements. It was found that the corrosion current density (jcorr) is
smaller for at least one order of magnitude for ARB multilayer samples. Higher degree of
plastic deformation induced better corrosion stability, for both CR monolayer and ARB
multilayer samples. Results showed that the overall impedance value of ARB samples was
more than doubled compared to the CR samples as a result of the multilayered structure
and the presence of oxidation film between the layers. Significantly larger semicircles in
Nyquist plots for ARB samples indicate increase of corrosion stability, with increasing the
number of ARB cycles. Experimental results showed that applied processing route and the
degree of deformation have a major impact on the corrosion stability of the AA5083 alloy.",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Kratki izvodi radova / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018",
title = "Uticaj akumulativnog spajanja valjanjem (ARB) i konvencionalnog valjanja (CR) na korozionu stabilnost AA5083 legure, Influence of accumulative roll bonding (ARB) and conventional cold rolling (CR) on the corrosion stability of AA5083 alloy sheets",
pages = "38",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6206"
}

Alil, A. B., Popović, M., Radetić, T., Bajat, J.,& Romhanji, E.. (2018). Uticaj akumulativnog spajanja valjanjem (ARB) i konvencionalnog valjanja (CR) na korozionu stabilnost AA5083 legure. in Kratki izvodi radova / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018
Beograd : Srpsko hemijsko društvo., 38.
https://hdl.handle.net/21.15107/rcub_technorep_6206

Alil AB, Popović M, Radetić T, Bajat J, Romhanji E. Uticaj akumulativnog spajanja valjanjem (ARB) i konvencionalnog valjanja (CR) na korozionu stabilnost AA5083 legure. in Kratki izvodi radova / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018. 2018;:38.
https://hdl.handle.net/21.15107/rcub_technorep_6206 .

Alil, Ana B., Popović, Miljana, Radetić, Tamara, Bajat, Jelena, Romhanji, Endre, "Uticaj akumulativnog spajanja valjanjem (ARB) i konvencionalnog valjanja (CR) na korozionu stabilnost AA5083 legure" in Kratki izvodi radova / 55. savetovanje Srpskog hemijskog društva, Novi Sad 8. i 9. juni 2018 (2018):38,
https://hdl.handle.net/21.15107/rcub_technorep_6206 .

TY  - JOUR
AU  - Ahribesh, Aysha Ali
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Jokić, Bojan
AU  - Spasojević, Vojislav
AU  - Radetić, Tamara
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3667
AB  - The magnetic nanocomposites (MNCs), used as adsorbents for Cd2+ ions, were prepared by a co-precipitation method using both the untreated natural (SEP) and the partially acid-activated (ASEP) sepiolites as supports for magnetite. The synthesis conditions differed as follows: NaOH or NH3 was added in the SEP or the ASEP suspension before or after the addition of Fe3 and Fe2+. The SEP-based MNCs prepared using NaOH had a lower magnetization, but higher adsorption capacities than the MNCs synthesized using NH3. The order of the mixing of the reagents had a small influence on the properties of SEP-based MNCs, especially when NaOH was used for the synthesis. Due to acidity of the surface functional groups of the ASEP, the magnetic composite could be synthesized only when NH3 was added in the suspension of ASEP having Fe3+ and Fe2+ ions. Despite of the worse dispersibility of the magnetic particles, the adsorption capacityof the ASEP-based composite was higher than of the MNC with SEP prepared by the same procedure. All the MNCs showed a superparamagnetic behavior at room temperature and the adsorption capacities were higher than of pure compounds. The adsorption of Cd2+ on the composites was best fitted with the Sips model, which suggested the chemisorption on the heterogeneous surface at energetically non-uniform sites until a monolayer was formed.
PB  - Elsevier Science Bv, Amsterdam
T2  - Powder Technology
T1  - Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents
EP  - 269
SP  - 260
VL  - 305
DO  - 10.1016/j.powtec.2016.09.086
ER  - 

@article{
author = "Ahribesh, Aysha Ali and Lazarević, Slavica and Janković-Častvan, Ivona and Jokić, Bojan and Spasojević, Vojislav and Radetić, Tamara and Janaćković, Đorđe and Petrović, Rada",
year = "2017",
abstract = "The magnetic nanocomposites (MNCs), used as adsorbents for Cd2+ ions, were prepared by a co-precipitation method using both the untreated natural (SEP) and the partially acid-activated (ASEP) sepiolites as supports for magnetite. The synthesis conditions differed as follows: NaOH or NH3 was added in the SEP or the ASEP suspension before or after the addition of Fe3 and Fe2+. The SEP-based MNCs prepared using NaOH had a lower magnetization, but higher adsorption capacities than the MNCs synthesized using NH3. The order of the mixing of the reagents had a small influence on the properties of SEP-based MNCs, especially when NaOH was used for the synthesis. Due to acidity of the surface functional groups of the ASEP, the magnetic composite could be synthesized only when NH3 was added in the suspension of ASEP having Fe3+ and Fe2+ ions. Despite of the worse dispersibility of the magnetic particles, the adsorption capacityof the ASEP-based composite was higher than of the MNC with SEP prepared by the same procedure. All the MNCs showed a superparamagnetic behavior at room temperature and the adsorption capacities were higher than of pure compounds. The adsorption of Cd2+ on the composites was best fitted with the Sips model, which suggested the chemisorption on the heterogeneous surface at energetically non-uniform sites until a monolayer was formed.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Powder Technology",
title = "Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents",
pages = "269-260",
volume = "305",
doi = "10.1016/j.powtec.2016.09.086"
}

Ahribesh, A. A., Lazarević, S., Janković-Častvan, I., Jokić, B., Spasojević, V., Radetić, T., Janaćković, Đ.,& Petrović, R.. (2017). Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents. in Powder Technology
Elsevier Science Bv, Amsterdam., 305, 260-269.
https://doi.org/10.1016/j.powtec.2016.09.086

Ahribesh AA, Lazarević S, Janković-Častvan I, Jokić B, Spasojević V, Radetić T, Janaćković Đ, Petrović R. Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents. in Powder Technology. 2017;305:260-269.
doi:10.1016/j.powtec.2016.09.086 .

Ahribesh, Aysha Ali, Lazarević, Slavica, Janković-Častvan, Ivona, Jokić, Bojan, Spasojević, Vojislav, Radetić, Tamara, Janaćković, Đorđe, Petrović, Rada, "Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents" in Powder Technology, 305 (2017):260-269,
https://doi.org/10.1016/j.powtec.2016.09.086 . .

TY  - JOUR
AU  - Milošević, Milica V.
AU  - Krkobabic, Ana
AU  - Radoičić, Marija B.
AU  - Šaponjić, Zoran
AU  - Radetić, Tamara
AU  - Radetić, Maja M.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5816
AB  - This study discusses the biodegradation behavior of cotton and cotton/PET fabrics impregnated with Ag/TiO2 nanoparticles in soil. Biodegradation behavior was evaluated by standard test method ASTM 5988-03 based on determination of percentage conversions of carbon content to CO2 as well as by soil burial test and enzymatic hydrolysis with cellulase where the extent of biodegradation was estimated by the calculation of fabric weight loss. The morphological and chemical changes of fibers during biodegradation process were analyzed by SEM and FTIR spectroscopy, respectively. The results obtained by all applied methods suggested that Ag/TiO2 nanoparticles hindered the biodegradation of investigated cotton and cotton/PET fabrics. Soil burial test indicated faster biodegradation of the impregnated blend compared to impregnated cotton fabric which is attributed to smaller amount of fabricated Ag nanoparticles on the blend proved by MS measurement. Similar trend was established by enzymatic hydrolysis of cotton fibers. Severe damage of cotton fibers in both fabrics due to biodegradation process was confirmed by SEM. However, the cotton fiber damage occurred to a lesser extent in the samples that were impregnated with Ag/TiO2 nanoparticles. PET fibers remained intact which was also indicated by FTIR analysis. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Carbohydrate Polymers
T1  - Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil
EP  - 84
SP  - 77
VL  - 158
DO  - 10.1016/j.carbpol.2016.12.006
ER  - 

@article{
author = "Milošević, Milica V. and Krkobabic, Ana and Radoičić, Marija B. and Šaponjić, Zoran and Radetić, Tamara and Radetić, Maja M.",
year = "2017",
abstract = "This study discusses the biodegradation behavior of cotton and cotton/PET fabrics impregnated with Ag/TiO2 nanoparticles in soil. Biodegradation behavior was evaluated by standard test method ASTM 5988-03 based on determination of percentage conversions of carbon content to CO2 as well as by soil burial test and enzymatic hydrolysis with cellulase where the extent of biodegradation was estimated by the calculation of fabric weight loss. The morphological and chemical changes of fibers during biodegradation process were analyzed by SEM and FTIR spectroscopy, respectively. The results obtained by all applied methods suggested that Ag/TiO2 nanoparticles hindered the biodegradation of investigated cotton and cotton/PET fabrics. Soil burial test indicated faster biodegradation of the impregnated blend compared to impregnated cotton fabric which is attributed to smaller amount of fabricated Ag nanoparticles on the blend proved by MS measurement. Similar trend was established by enzymatic hydrolysis of cotton fibers. Severe damage of cotton fibers in both fabrics due to biodegradation process was confirmed by SEM. However, the cotton fiber damage occurred to a lesser extent in the samples that were impregnated with Ag/TiO2 nanoparticles. PET fibers remained intact which was also indicated by FTIR analysis. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Carbohydrate Polymers",
title = "Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil",
pages = "84-77",
volume = "158",
doi = "10.1016/j.carbpol.2016.12.006"
}

Milošević, M. V., Krkobabic, A., Radoičić, M. B., Šaponjić, Z., Radetić, T.,& Radetić, M. M.. (2017). Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil. in Carbohydrate Polymers, 158, 77-84.
https://doi.org/10.1016/j.carbpol.2016.12.006

Milošević MV, Krkobabic A, Radoičić MB, Šaponjić Z, Radetić T, Radetić MM. Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil. in Carbohydrate Polymers. 2017;158:77-84.
doi:10.1016/j.carbpol.2016.12.006 .

Milošević, Milica V., Krkobabic, Ana, Radoičić, Marija B., Šaponjić, Zoran, Radetić, Tamara, Radetić, Maja M., "Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil" in Carbohydrate Polymers, 158 (2017):77-84,
https://doi.org/10.1016/j.carbpol.2016.12.006 . .

TY  - JOUR
AU  - Milošević, Milica V.
AU  - Šaponjić, Zoran
AU  - Nunney, Tim
AU  - Deeks, Christopher
AU  - Radoičić, Marija B.
AU  - Mitrić, Miodrag
AU  - Radetić, Tamara
AU  - Radetić, Maja
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3694
AB  - This study discusses the possibility of in situ photoreduction of Ag+-ions on the surface of titania nanotubes (TNTs) deposited on the cotton and cotton/PET fabrics in the presence of amino acid alanine and methyl alcohol. TNTs were synthetized by hydrothermal method. The proposed interaction between titania, alanine and Ag+-ions was based on the results obtained by FTIR measurements. In order to enhance the binding efficiency between TNTs and fibers, the fabrics were previously impregnated with polyethyleneimine. The presence of TNT/Ag nanocrystals on the surface of fibers was proved by SEM, AAS, XRD and XPS. Larger amount of silver was detected on the cotton fabric. Fabricated TiO2/Ag nanocrystals provided maximum reduction of bacteria E. coli which was preserved after five washing cycles despite significant release of silver. The perspiration fastness tests indicated that silver release did not depend on pH. The presence of TNT/Ag nanocrystals imparted maximum UV protection to fabrics.
PB  - Springer, Dordrecht
T2  - Cellulose
T1  - In situ photoreduction of Ag+-ions on the surface of titania nanotubes deposited on cotton and cotton/PET fabrics
EP  - 1610
IS  - 3
SP  - 1597
VL  - 24
DO  - 10.1007/s10570-017-1207-z
ER  - 

@article{
author = "Milošević, Milica V. and Šaponjić, Zoran and Nunney, Tim and Deeks, Christopher and Radoičić, Marija B. and Mitrić, Miodrag and Radetić, Tamara and Radetić, Maja",
year = "2017",
abstract = "This study discusses the possibility of in situ photoreduction of Ag+-ions on the surface of titania nanotubes (TNTs) deposited on the cotton and cotton/PET fabrics in the presence of amino acid alanine and methyl alcohol. TNTs were synthetized by hydrothermal method. The proposed interaction between titania, alanine and Ag+-ions was based on the results obtained by FTIR measurements. In order to enhance the binding efficiency between TNTs and fibers, the fabrics were previously impregnated with polyethyleneimine. The presence of TNT/Ag nanocrystals on the surface of fibers was proved by SEM, AAS, XRD and XPS. Larger amount of silver was detected on the cotton fabric. Fabricated TiO2/Ag nanocrystals provided maximum reduction of bacteria E. coli which was preserved after five washing cycles despite significant release of silver. The perspiration fastness tests indicated that silver release did not depend on pH. The presence of TNT/Ag nanocrystals imparted maximum UV protection to fabrics.",
publisher = "Springer, Dordrecht",
journal = "Cellulose",
title = "In situ photoreduction of Ag+-ions on the surface of titania nanotubes deposited on cotton and cotton/PET fabrics",
pages = "1610-1597",
number = "3",
volume = "24",
doi = "10.1007/s10570-017-1207-z"
}

Milošević, M. V., Šaponjić, Z., Nunney, T., Deeks, C., Radoičić, M. B., Mitrić, M., Radetić, T.,& Radetić, M.. (2017). In situ photoreduction of Ag+-ions on the surface of titania nanotubes deposited on cotton and cotton/PET fabrics. in Cellulose
Springer, Dordrecht., 24(3), 1597-1610.
https://doi.org/10.1007/s10570-017-1207-z

Milošević MV, Šaponjić Z, Nunney T, Deeks C, Radoičić MB, Mitrić M, Radetić T, Radetić M. In situ photoreduction of Ag+-ions on the surface of titania nanotubes deposited on cotton and cotton/PET fabrics. in Cellulose. 2017;24(3):1597-1610.
doi:10.1007/s10570-017-1207-z .

Milošević, Milica V., Šaponjić, Zoran, Nunney, Tim, Deeks, Christopher, Radoičić, Marija B., Mitrić, Miodrag, Radetić, Tamara, Radetić, Maja, "In situ photoreduction of Ag+-ions on the surface of titania nanotubes deposited on cotton and cotton/PET fabrics" in Cellulose, 24, no. 3 (2017):1597-1610,
https://doi.org/10.1007/s10570-017-1207-z . .

TY  - JOUR
AU  - Milošević, Milica V.
AU  - Krkobabić, Ana
AU  - Radoičić, Marija B.
AU  - Šaponjić, Zoran
AU  - Radetić, Tamara
AU  - Radetić, Maja
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3704
AB  - This study discusses the biodegradation behavior of cotton and cotton/PET fabrics impregnated with Ag/TiO2 nanoparticles in soil. Biodegradation behavior was evaluated by standard test method ASTM 5988-03 based on determination of percentage conversions of carbon content to CO2 as well as by soil burial test and enzymatic hydrolysis with cellulase where the extent of biodegradation was estimated by the calculation of fabric weight loss. The morphological and chemical changes of fibers during biodegradation process were analyzed by SEM and FTIR spectroscopy, respectively. The results obtained by all applied methods suggested that Ag/TiO2 nanoparticles hindered the biodegradation of investigated cotton and cotton/PET fabrics. Soil burial test indicated faster biodegradation of the impregnated blend compared to impregnated cotton fabric which is attributed to smaller amount of fabricated Ag nanoparticles on the blend proved by MS measurement. Similar trend was established by enzymatic hydrolysis of cotton fibers. Severe damage of cotton fibers in both fabrics due to biodegradation process was confirmed by SEM. However, the cotton fiber damage occurred to a lesser extent in the samples that were impregnated with Ag/TiO2 nanoparticles. PET fibers remained intact which was also indicated by FTIR analysis.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil
EP  - 84
SP  - 77
VL  - 158
DO  - 10.1016/j.carbpol.2016.12.006
ER  - 

@article{
author = "Milošević, Milica V. and Krkobabić, Ana and Radoičić, Marija B. and Šaponjić, Zoran and Radetić, Tamara and Radetić, Maja",
year = "2017",
abstract = "This study discusses the biodegradation behavior of cotton and cotton/PET fabrics impregnated with Ag/TiO2 nanoparticles in soil. Biodegradation behavior was evaluated by standard test method ASTM 5988-03 based on determination of percentage conversions of carbon content to CO2 as well as by soil burial test and enzymatic hydrolysis with cellulase where the extent of biodegradation was estimated by the calculation of fabric weight loss. The morphological and chemical changes of fibers during biodegradation process were analyzed by SEM and FTIR spectroscopy, respectively. The results obtained by all applied methods suggested that Ag/TiO2 nanoparticles hindered the biodegradation of investigated cotton and cotton/PET fabrics. Soil burial test indicated faster biodegradation of the impregnated blend compared to impregnated cotton fabric which is attributed to smaller amount of fabricated Ag nanoparticles on the blend proved by MS measurement. Similar trend was established by enzymatic hydrolysis of cotton fibers. Severe damage of cotton fibers in both fabrics due to biodegradation process was confirmed by SEM. However, the cotton fiber damage occurred to a lesser extent in the samples that were impregnated with Ag/TiO2 nanoparticles. PET fibers remained intact which was also indicated by FTIR analysis.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil",
pages = "84-77",
volume = "158",
doi = "10.1016/j.carbpol.2016.12.006"
}

Milošević, M. V., Krkobabić, A., Radoičić, M. B., Šaponjić, Z., Radetić, T.,& Radetić, M.. (2017). Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 158, 77-84.
https://doi.org/10.1016/j.carbpol.2016.12.006

Milošević MV, Krkobabić A, Radoičić MB, Šaponjić Z, Radetić T, Radetić M. Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil. in Carbohydrate Polymers. 2017;158:77-84.
doi:10.1016/j.carbpol.2016.12.006 .

Milošević, Milica V., Krkobabić, Ana, Radoičić, Marija B., Šaponjić, Zoran, Radetić, Tamara, Radetić, Maja, "Biodegradation of cotton and cotton/polyester with Ag/TiO2 nanoparticles in soil" in Carbohydrate Polymers, 158 (2017):77-84,
https://doi.org/10.1016/j.carbpol.2016.12.006 . .

TY  - JOUR
AU  - Vranješ, Mila
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Konstantinović, Z.
AU  - Pomar, A.
AU  - Stoiljković, Milovan
AU  - Mitrić, Miodrag
AU  - Radetić, Tamara
AU  - Šaponjić, Zoran
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3595
AB  - Co2+ doped TiO2 nanocrystals were synthetized by a hydrothermal treatment procedure applied to precursor dispersion of titania nanotubes and Co2+ ions. Mixture of polygonal and prolate spheroid-like nanocrystals was obtained. The results of X-ray diffraction (XRD) analysis showed that resulted nanocrystals retain anatase crystal phase for both dopant concentrations (1.69 and 2.5 at%), but the crystal lattice parameters were affected. Reflection spectra revealed altered optical properties compared to bare TiO2. Room temperature ferromagnetic ordering with saturation magnetic moment in the range of 0.001-0.002 mu (B)/Co was observed for both measured films made of Co2+ doped TiO2 nanocrystals.
PB  - Springeropen, London
T2  - Journal of Advanced Ceramics
T1  - Shaped Co2+ doped TiO2 nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior
EP  - 229
IS  - 3
SP  - 220
VL  - 6
DO  - 10.1007/s40145-017-0233-5
ER  - 

@article{
author = "Vranješ, Mila and Kuljanin-Jakovljević, Jadranka Ž. and Konstantinović, Z. and Pomar, A. and Stoiljković, Milovan and Mitrić, Miodrag and Radetić, Tamara and Šaponjić, Zoran",
year = "2017",
abstract = "Co2+ doped TiO2 nanocrystals were synthetized by a hydrothermal treatment procedure applied to precursor dispersion of titania nanotubes and Co2+ ions. Mixture of polygonal and prolate spheroid-like nanocrystals was obtained. The results of X-ray diffraction (XRD) analysis showed that resulted nanocrystals retain anatase crystal phase for both dopant concentrations (1.69 and 2.5 at%), but the crystal lattice parameters were affected. Reflection spectra revealed altered optical properties compared to bare TiO2. Room temperature ferromagnetic ordering with saturation magnetic moment in the range of 0.001-0.002 mu (B)/Co was observed for both measured films made of Co2+ doped TiO2 nanocrystals.",
publisher = "Springeropen, London",
journal = "Journal of Advanced Ceramics",
title = "Shaped Co2+ doped TiO2 nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior",
pages = "229-220",
number = "3",
volume = "6",
doi = "10.1007/s40145-017-0233-5"
}

Vranješ, M., Kuljanin-Jakovljević, J. Ž., Konstantinović, Z., Pomar, A., Stoiljković, M., Mitrić, M., Radetić, T.,& Šaponjić, Z.. (2017). Shaped Co2+ doped TiO2 nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior. in Journal of Advanced Ceramics
Springeropen, London., 6(3), 220-229.
https://doi.org/10.1007/s40145-017-0233-5

Vranješ M, Kuljanin-Jakovljević JŽ, Konstantinović Z, Pomar A, Stoiljković M, Mitrić M, Radetić T, Šaponjić Z. Shaped Co2+ doped TiO2 nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior. in Journal of Advanced Ceramics. 2017;6(3):220-229.
doi:10.1007/s40145-017-0233-5 .

Vranješ, Mila, Kuljanin-Jakovljević, Jadranka Ž., Konstantinović, Z., Pomar, A., Stoiljković, Milovan, Mitrić, Miodrag, Radetić, Tamara, Šaponjić, Zoran, "Shaped Co2+ doped TiO2 nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior" in Journal of Advanced Ceramics, 6, no. 3 (2017):220-229,
https://doi.org/10.1007/s40145-017-0233-5 . .