TY  - CONF
AU  - Ivanovska, Aleksandra
AU  - Stojanović, Dušica
AU  - Barać, Nemanja
AU  - Dimić-Mišić, Katarina
AU  - Kostić, Mirjana
AU  - Radojević, Vesna
AU  - Uskoković, Petar
AU  - Janaćković, Đorđe
AU  - Barcelo, Ernesto
AU  - Gane, Patrick
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6820
AB  - Biodegradable mulch films from cellulose (CELL), cellulose/polycaprolactone (CELL/PCL),
cellulose/polycaprolactone/keratin (CELL/PCL/KER) and cellulose/polycaprolactone/keratin/ground calcium carbonate (CELL/PCL/KER/GCC) were prepared using Ionic liquid as a green
solvent. Pure cellulose biopolymer is characterised by better mechanical properties (tensile
strength - force per unit cross-sectional area at breakage - of 75.3 MPa and modulus of elasticity
of 944.4 MPa) than the other studied samples which is attributed to the formation of partially
miscible polymer blends. Among samples containing PCL, CELL/PCL/KER/GCC has the highest
tensile strength and modulus of elasticity. The addition of KER or KER/GCC to CELL/PCL films
resulted in an increment in melting temperature and an improvement of sample crystallinity. The
light transmittance of all films was >60 %. The incorporation of KER enhanced the
biodegradability of the biocomposites, while KER/GCC addition slightly inhibited degradation
due to an increased hydrophobicity and crystallisation growth of semi-crystalline biopolymers.
The reported method for mulch film preparation is green and recyclable, and, when including a
readily available source of KER, such as by extraction from waste chicken feathers, enables
conversion to organic biofertiliser. The findings of this study contributed to sustainable agriculture
by providing nutrients that enhance the growth speed of the plant, and hence food production, and
reduce environmental pressure. Inclusion of GCC additionally provides not only Ca2+ for plant
consumption but also soil pH control.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
T1  - Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate
SP  - 135
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6820
ER  - 

@conference{
author = "Ivanovska, Aleksandra and Stojanović, Dušica and Barać, Nemanja and Dimić-Mišić, Katarina and Kostić, Mirjana and Radojević, Vesna and Uskoković, Petar and Janaćković, Đorđe and Barcelo, Ernesto and Gane, Patrick",
year = "2023",
abstract = "Biodegradable mulch films from cellulose (CELL), cellulose/polycaprolactone (CELL/PCL),
cellulose/polycaprolactone/keratin (CELL/PCL/KER) and cellulose/polycaprolactone/keratin/ground calcium carbonate (CELL/PCL/KER/GCC) were prepared using Ionic liquid as a green
solvent. Pure cellulose biopolymer is characterised by better mechanical properties (tensile
strength - force per unit cross-sectional area at breakage - of 75.3 MPa and modulus of elasticity
of 944.4 MPa) than the other studied samples which is attributed to the formation of partially
miscible polymer blends. Among samples containing PCL, CELL/PCL/KER/GCC has the highest
tensile strength and modulus of elasticity. The addition of KER or KER/GCC to CELL/PCL films
resulted in an increment in melting temperature and an improvement of sample crystallinity. The
light transmittance of all films was >60 %. The incorporation of KER enhanced the
biodegradability of the biocomposites, while KER/GCC addition slightly inhibited degradation
due to an increased hydrophobicity and crystallisation growth of semi-crystalline biopolymers.
The reported method for mulch film preparation is green and recyclable, and, when including a
readily available source of KER, such as by extraction from waste chicken feathers, enables
conversion to organic biofertiliser. The findings of this study contributed to sustainable agriculture
by providing nutrients that enhance the growth speed of the plant, and hence food production, and
reduce environmental pressure. Inclusion of GCC additionally provides not only Ca2+ for plant
consumption but also soil pH control.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023",
title = "Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate",
pages = "135",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6820"
}

Ivanovska, A., Stojanović, D., Barać, N., Dimić-Mišić, K., Kostić, M., Radojević, V., Uskoković, P., Janaćković, Đ., Barcelo, E.,& Gane, P.. (2023). Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
Belgrade : Materials Research Society of Serbia., 135.
https://hdl.handle.net/21.15107/rcub_technorep_6820

Ivanovska A, Stojanović D, Barać N, Dimić-Mišić K, Kostić M, Radojević V, Uskoković P, Janaćković Đ, Barcelo E, Gane P. Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023. 2023;:135.
https://hdl.handle.net/21.15107/rcub_technorep_6820 .

Ivanovska, Aleksandra, Stojanović, Dušica, Barać, Nemanja, Dimić-Mišić, Katarina, Kostić, Mirjana, Radojević, Vesna, Uskoković, Petar, Janaćković, Đorđe, Barcelo, Ernesto, Gane, Patrick, "Biodegradable mulch films obtained from unique combinations of cellulose, polycaprolactone, keratin and calcium carbonate" in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023 (2023):135,
https://hdl.handle.net/21.15107/rcub_technorep_6820 .

TY  - CONF
AU  - Kostić, Mirjana
AU  - Janaćković, Đorđe
AU  - Uskoković, Petar
AU  - Gane, Patrick
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6845
AB  - Cellulose as the most abundant natural polymer holds great potential as a raw material for the preparation of both sustainable and economically viable polymeric products hitherto predominantly produced from synthetic fossil-based polymers. However, the utilization of cellulose to its full potential is constrained by its recalcitrance to chemical processing. Prior to processing and conversion into valuable products, cellulose needs to be dissolved and then regenerated via an efficient, energy-saving, and environmentally benign route. In the late 1990s, ionic liquids (ILs)have been re-discovered as the most promising cellulose solvents. The application of these novel, green solvents is discussed in detail. The subsequent regeneration of cellulose solutions from these solvents into various products such as fibers, films, membranes, beads, aerogels, hydrogels, and composites including all-cellulose composites, as well as their application in biomedicine, sorption, agriculture, packaging, and thermal insulation, have been reviewed. The properties of the regenerated cellulose material can be additionally tuned by the proper choice of the experimental conditions such as temperature and polarity of the coagulation medium. Furthermore, recycling and converting waste paper and cardboard into high-value materials have been discussed. The recyclability of ILs is one of the challenges to making the process cost-effective and environmentally benignthat scientists and technologists dealing with cellulose processing need to solve.
AB  - Celuloza kao najzastupljeniji prirodni polimer ima veliki potencijal kao sirovina za proizvodnju kako održivih tako i ekonomski isplativih polimernih proizvoda koji su se do sada pretežno proizvodili od sintetičkih polimera na bazi petrohemijskih sirovina. Međutim, korišćenje celuloze u njenom punom potencijalu je ograničeno njenom otpornošću na hemijske tretmane. Pre obrade i konverzije u vredne proizvode, celulozu treba rastvoriti, a zatim regenerisati efikasnim, energetski štedljivim i ekološki benignim putem. Krajem 1990-ih, jonske tečnosti (ILs) su ponovo otkrivene kao najperspektivniji rastvarači celuloze. U radu je detaljno razmatrana primena ovih novih, zelenih rastvarača, kao i regeneracija celuloze rastvorene u jonskim tečnostima u različite proizvode kao što su vlakna, filmovi, membrane, sfere, aerogelovi, hidrogelovi i kompoziti, uključujući i kompozite celuloza-celuloza, i primena ovih proizvoda u biomedicini, poljoprivredi, kao sorbenata, ambalažnih i termoizolacionih materijala i sl. Svojstva regenerisanih celuloznih materijala mogu se dodatno podesiti pravilnim izborom eksperimentalnih uslova procesa regeneracije kao što su temperatura i polaritet medijuma za koagulaciju. Nadalje, analizirana je mogućnost recikliranja i pretvaranja starog papira i kartona u materijale visoke vrednosti. Reciklabilnost ILs je jedan od izazova koji naučnici i tehnolozi koji se bave preradom celuloze moraju da reše kako bi se proces učinio isplativim i ekološki benignim.
PB  - Belgrade : Faculty of Technology and Metallurgy University, Center for Pulp, Paper, Packaging and Graphics in Serbia
C3  - Proceedings / XXIV International Symposium in the Field of Pulp, Paper, Packaging and Graphics, Belgrade, June 21st-22nd 2023
T1  - REGENERACIJA CELULOZE IZ RASTVORA JONSKE TEČNOSTI: NOVI PUT VALORIZACIJE ZA POTPUNO ISKORIŠĆENJE CELULOZE
T1  - REGENERATION OF CELLULOSE FROM IONIC LIQUID SOLUTION: A NOVEL VALORIZATION ROUTE FOR FULL POTENTIAL UTILIZATION OF CELLULOSE
EP  - 17
SP  - 11
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6845
ER  - 

@conference{
author = "Kostić, Mirjana and Janaćković, Đorđe and Uskoković, Petar and Gane, Patrick",
year = "2023",
abstract = "Cellulose as the most abundant natural polymer holds great potential as a raw material for the preparation of both sustainable and economically viable polymeric products hitherto predominantly produced from synthetic fossil-based polymers. However, the utilization of cellulose to its full potential is constrained by its recalcitrance to chemical processing. Prior to processing and conversion into valuable products, cellulose needs to be dissolved and then regenerated via an efficient, energy-saving, and environmentally benign route. In the late 1990s, ionic liquids (ILs)have been re-discovered as the most promising cellulose solvents. The application of these novel, green solvents is discussed in detail. The subsequent regeneration of cellulose solutions from these solvents into various products such as fibers, films, membranes, beads, aerogels, hydrogels, and composites including all-cellulose composites, as well as their application in biomedicine, sorption, agriculture, packaging, and thermal insulation, have been reviewed. The properties of the regenerated cellulose material can be additionally tuned by the proper choice of the experimental conditions such as temperature and polarity of the coagulation medium. Furthermore, recycling and converting waste paper and cardboard into high-value materials have been discussed. The recyclability of ILs is one of the challenges to making the process cost-effective and environmentally benignthat scientists and technologists dealing with cellulose processing need to solve., Celuloza kao najzastupljeniji prirodni polimer ima veliki potencijal kao sirovina za proizvodnju kako održivih tako i ekonomski isplativih polimernih proizvoda koji su se do sada pretežno proizvodili od sintetičkih polimera na bazi petrohemijskih sirovina. Međutim, korišćenje celuloze u njenom punom potencijalu je ograničeno njenom otpornošću na hemijske tretmane. Pre obrade i konverzije u vredne proizvode, celulozu treba rastvoriti, a zatim regenerisati efikasnim, energetski štedljivim i ekološki benignim putem. Krajem 1990-ih, jonske tečnosti (ILs) su ponovo otkrivene kao najperspektivniji rastvarači celuloze. U radu je detaljno razmatrana primena ovih novih, zelenih rastvarača, kao i regeneracija celuloze rastvorene u jonskim tečnostima u različite proizvode kao što su vlakna, filmovi, membrane, sfere, aerogelovi, hidrogelovi i kompoziti, uključujući i kompozite celuloza-celuloza, i primena ovih proizvoda u biomedicini, poljoprivredi, kao sorbenata, ambalažnih i termoizolacionih materijala i sl. Svojstva regenerisanih celuloznih materijala mogu se dodatno podesiti pravilnim izborom eksperimentalnih uslova procesa regeneracije kao što su temperatura i polaritet medijuma za koagulaciju. Nadalje, analizirana je mogućnost recikliranja i pretvaranja starog papira i kartona u materijale visoke vrednosti. Reciklabilnost ILs je jedan od izazova koji naučnici i tehnolozi koji se bave preradom celuloze moraju da reše kako bi se proces učinio isplativim i ekološki benignim.",
publisher = "Belgrade : Faculty of Technology and Metallurgy University, Center for Pulp, Paper, Packaging and Graphics in Serbia",
journal = "Proceedings / XXIV International Symposium in the Field of Pulp, Paper, Packaging and Graphics, Belgrade, June 21st-22nd 2023",
title = "REGENERACIJA CELULOZE IZ RASTVORA JONSKE TEČNOSTI: NOVI PUT VALORIZACIJE ZA POTPUNO ISKORIŠĆENJE CELULOZE, REGENERATION OF CELLULOSE FROM IONIC LIQUID SOLUTION: A NOVEL VALORIZATION ROUTE FOR FULL POTENTIAL UTILIZATION OF CELLULOSE",
pages = "17-11",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6845"
}

Kostić, M., Janaćković, Đ., Uskoković, P.,& Gane, P.. (2023). REGENERACIJA CELULOZE IZ RASTVORA JONSKE TEČNOSTI: NOVI PUT VALORIZACIJE ZA POTPUNO ISKORIŠĆENJE CELULOZE. in Proceedings / XXIV International Symposium in the Field of Pulp, Paper, Packaging and Graphics, Belgrade, June 21st-22nd 2023
Belgrade : Faculty of Technology and Metallurgy University, Center for Pulp, Paper, Packaging and Graphics in Serbia., 11-17.
https://hdl.handle.net/21.15107/rcub_technorep_6845

Kostić M, Janaćković Đ, Uskoković P, Gane P. REGENERACIJA CELULOZE IZ RASTVORA JONSKE TEČNOSTI: NOVI PUT VALORIZACIJE ZA POTPUNO ISKORIŠĆENJE CELULOZE. in Proceedings / XXIV International Symposium in the Field of Pulp, Paper, Packaging and Graphics, Belgrade, June 21st-22nd 2023. 2023;:11-17.
https://hdl.handle.net/21.15107/rcub_technorep_6845 .

Kostić, Mirjana, Janaćković, Đorđe, Uskoković, Petar, Gane, Patrick, "REGENERACIJA CELULOZE IZ RASTVORA JONSKE TEČNOSTI: NOVI PUT VALORIZACIJE ZA POTPUNO ISKORIŠĆENJE CELULOZE" in Proceedings / XXIV International Symposium in the Field of Pulp, Paper, Packaging and Graphics, Belgrade, June 21st-22nd 2023 (2023):11-17,
https://hdl.handle.net/21.15107/rcub_technorep_6845 .

TY  - CONF
AU  - Ivanovska, Aleksandra
AU  - Barać, Nemanja
AU  - Radojević, Vesna
AU  - Uskoković, Petar
AU  - Janaćković, Đorđe
AU  - Barcelo, Ernest
AU  - Gane, Patrick
AU  - Kostić, Mirjana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6821
AB  - Cellulose and cellulose-CaCO3 dopes were prepared by ultrasound dispersion of CaCO3 (0, 0.26,
or 0.65 w/w%) and dissolution of cellulose (13 w/w%) in ionic liquid 1-ethyl-3-
methylimidazolium acetate at 90 °C. Thereafter, the films were obtained by rode casting over a
pre-heated glass plate, together with methanol used as a regeneration agent. Subsequently, the
films were washed in hot water (80 °C) to remove the residual ionic liquid solvent - a process that
can be extended to recover ionic liquid for re-use. To impart antimicrobial properties to the
cellulose-CaCO3 composite films, selected samples of the wet films were treated with 10 mM
CuSO4 solution for different times (30, 60, and 120 min). Furthermore, half of these CuSO4 treated
films were subsequently treated with ascorbic acid to synthesise in situ Cu-based nanoparticles on
the film surface. After drying whilst held under tension at room temperature, the films were
characterised in respect to their mechanical properties as well as antimicrobial activity. The results
revealed that, in the case of films treated for 30 min with CuSO4 solution, the incorporation of
0.26 w/w% CaCO3 correlated with an increase in the film hardness, while in the case where the
treatment with CuSO4 solution was performed for longer (60 min) this hardness trend was
reversed. The elastic modulus decreased with increasing content of CaCO3. Only the films treated
with CuSO4, and those with Cu-based nanoparticles, possessed excellent antimicrobial activity
against the bacteria E. coli, S. aureus, and the fungus C. albicans. However, the results in the case
of C. albicans, showed an additional dependence, in that films treated with CuSO4 solution for 60
min demonstrated increasing antimicrobial activity against the fungus specifically with increasing
CaCO3 content.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
T1  - Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite
SP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6821
ER  - 

@conference{
author = "Ivanovska, Aleksandra and Barać, Nemanja and Radojević, Vesna and Uskoković, Petar and Janaćković, Đorđe and Barcelo, Ernest and Gane, Patrick and Kostić, Mirjana",
year = "2022",
abstract = "Cellulose and cellulose-CaCO3 dopes were prepared by ultrasound dispersion of CaCO3 (0, 0.26,
or 0.65 w/w%) and dissolution of cellulose (13 w/w%) in ionic liquid 1-ethyl-3-
methylimidazolium acetate at 90 °C. Thereafter, the films were obtained by rode casting over a
pre-heated glass plate, together with methanol used as a regeneration agent. Subsequently, the
films were washed in hot water (80 °C) to remove the residual ionic liquid solvent - a process that
can be extended to recover ionic liquid for re-use. To impart antimicrobial properties to the
cellulose-CaCO3 composite films, selected samples of the wet films were treated with 10 mM
CuSO4 solution for different times (30, 60, and 120 min). Furthermore, half of these CuSO4 treated
films were subsequently treated with ascorbic acid to synthesise in situ Cu-based nanoparticles on
the film surface. After drying whilst held under tension at room temperature, the films were
characterised in respect to their mechanical properties as well as antimicrobial activity. The results
revealed that, in the case of films treated for 30 min with CuSO4 solution, the incorporation of
0.26 w/w% CaCO3 correlated with an increase in the film hardness, while in the case where the
treatment with CuSO4 solution was performed for longer (60 min) this hardness trend was
reversed. The elastic modulus decreased with increasing content of CaCO3. Only the films treated
with CuSO4, and those with Cu-based nanoparticles, possessed excellent antimicrobial activity
against the bacteria E. coli, S. aureus, and the fungus C. albicans. However, the results in the case
of C. albicans, showed an additional dependence, in that films treated with CuSO4 solution for 60
min demonstrated increasing antimicrobial activity against the fungus specifically with increasing
CaCO3 content.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022",
title = "Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite",
pages = "90",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6821"
}

Ivanovska, A., Barać, N., Radojević, V., Uskoković, P., Janaćković, Đ., Barcelo, E., Gane, P.,& Kostić, M.. (2022). Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite. in Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
Belgrade : Materials Research Society of Serbia., 90.
https://hdl.handle.net/21.15107/rcub_technorep_6821

Ivanovska A, Barać N, Radojević V, Uskoković P, Janaćković Đ, Barcelo E, Gane P, Kostić M. Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite. in Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022. 2022;:90.
https://hdl.handle.net/21.15107/rcub_technorep_6821 .

Ivanovska, Aleksandra, Barać, Nemanja, Radojević, Vesna, Uskoković, Petar, Janaćković, Đorđe, Barcelo, Ernest, Gane, Patrick, Kostić, Mirjana, "Obtaining and characterising Cu-infused antimicrobial films formed from regenerated cellulose-CaCO3 composite" in Programme and The Book of Abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022 (2022):90,
https://hdl.handle.net/21.15107/rcub_technorep_6821 .