TY  - JOUR
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Vesna D.
AU  - Nikolić, Ljubiša B.
AU  - Zdravković, Aleksandar S.
AU  - Kapor, Agneš
AU  - Popsavin, Mirjana
AU  - Petrović, Slobodan
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2891
AB  - The aim of this work was the preparation of the inclusion complex of naproxen with 2- hydroxypropyl-β-cyclodextrin (HP-β-CD) in order to improve the physical and chemical properties of naproxen. The molecular inclusion complexes of naproxen with HP-β-CD were prepared by using the co-precipitation method in the solid state with the molar ratio of 1:1. The structure of the obtained complex was characterized by using FTIR, 1H NMR, UV-Vis and XRD methods. The testing of naproxen photostability by the UV-Vis method indicated the degradation to aromatic ketone, 2-acetyl-6-methoxynaphthalene. FTIR analysis showed that the degradation has started 15 days after the exposure of naproxen to daylight while the inclusion complex of naproxen:2-hydroxypropyl-β-cyclodextrin was photostable for a period of 30 days.
AB  - Naproksen, (+)-(S)-2-(6-metoksinaftalen-2-il)propionska kiselina, je derivat 2-arilpropionske kiseline (profena) iz grupe nesteroidnih antiinflamatornih lekova koji u terapijskim dozama smanjuje biosintezu prostaglandina i snižava povišenu telesnu temperaturu. Ovaj slabo rastvoran i fotoosetljiv molekul se transformiše pod uticajem svetlosti dajući farmakološki neaktivne proizvode. Cilj ovog rada je priprema inkluzionog kompleksa naproksena sa 2-hidroksipropil-β-ciklodekstrinom (HP-β-CD) u cilju poboljšanja fizičko-hemijskih svojstava naproksena. Molekulski inkluzioni kompleks naproksena i HP-β-CD pripremljen je metodom koprecipitacije u čvrstom stanju u molskom odnosu 1:1. Za strukturnu karakterizaciju kompleksa, kompleksirajućeg agensa, odgovarajuće fizičke smeše i naproksena, korišćene su metode protonske nuklearne magnetne rezonance (1H-NMR), difrakcije rendgenskih zraka (XRD) i infracrvene spektrofotometrije sa Furijeovom transformacijom (FTIR). FTIR i UV-Vis metode korišćene su za analizu fotoosetljivih grupa naproksena u čistom i kompleksiranom obliku radi ispitivanja uticaja na fotostabilnost naproksena. Difraktogram inkluzionog kompleksa naproksen:2-hidroksipropil- β-ciklodekstrin ne sadrži pikove koji su karakteristični za difraktograme naproksena i HP-β-CD. Ovo ukazuje da je naproksen zaklonjen u šupljine domaćina prilikom molekularne inkapsulacije. Odsustvo karakterističnih pikova naproksena u FTIR spektru kompleksa ukazuje na formiranje supramolekularne strukture po tipu inkluzije. Hemijska pomeranja u 1H-NMR spektru nakon inkluzije naproksena u šupljine HP-β-CD, posebno H3, H6 i H9 protona i vodonika iz CH3 u HP-β-CD takođe ukazuju na formiranje molekulskog inkluzionog kompleksa. Ispitivanje fotostabilnosti naproksena, pomoću UV-Vis metode, ukazuje na degradaciju do aromatičnog ketona, 2-acetil-6-metoksinaftalena. FTIR analiza je pokazala da degradacija naproksena počinje nakon 15 dana izlaganja dnevnoj svetlosti i da je molekularnom inkapsulacijom on zaštićen od fotodegradacije za vremenski period od 30 dana.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - The improved photostability of naproxen in the inclusion complex with 2-hydroxypropyl-β-cyclodextrin
T1  - Poboljšana fotostabilnost naproksena u inkluzionom kompleksu sa 2-hidroksipropil-β-ciklodekstrinom
EP  - 370
IS  - 4
SP  - 361
VL  - 69
DO  - 10.2298/HEMIND131128050I
ER  - 

@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Vesna D. and Nikolić, Ljubiša B. and Zdravković, Aleksandar S. and Kapor, Agneš and Popsavin, Mirjana and Petrović, Slobodan",
year = "2015",
abstract = "The aim of this work was the preparation of the inclusion complex of naproxen with 2- hydroxypropyl-β-cyclodextrin (HP-β-CD) in order to improve the physical and chemical properties of naproxen. The molecular inclusion complexes of naproxen with HP-β-CD were prepared by using the co-precipitation method in the solid state with the molar ratio of 1:1. The structure of the obtained complex was characterized by using FTIR, 1H NMR, UV-Vis and XRD methods. The testing of naproxen photostability by the UV-Vis method indicated the degradation to aromatic ketone, 2-acetyl-6-methoxynaphthalene. FTIR analysis showed that the degradation has started 15 days after the exposure of naproxen to daylight while the inclusion complex of naproxen:2-hydroxypropyl-β-cyclodextrin was photostable for a period of 30 days., Naproksen, (+)-(S)-2-(6-metoksinaftalen-2-il)propionska kiselina, je derivat 2-arilpropionske kiseline (profena) iz grupe nesteroidnih antiinflamatornih lekova koji u terapijskim dozama smanjuje biosintezu prostaglandina i snižava povišenu telesnu temperaturu. Ovaj slabo rastvoran i fotoosetljiv molekul se transformiše pod uticajem svetlosti dajući farmakološki neaktivne proizvode. Cilj ovog rada je priprema inkluzionog kompleksa naproksena sa 2-hidroksipropil-β-ciklodekstrinom (HP-β-CD) u cilju poboljšanja fizičko-hemijskih svojstava naproksena. Molekulski inkluzioni kompleks naproksena i HP-β-CD pripremljen je metodom koprecipitacije u čvrstom stanju u molskom odnosu 1:1. Za strukturnu karakterizaciju kompleksa, kompleksirajućeg agensa, odgovarajuće fizičke smeše i naproksena, korišćene su metode protonske nuklearne magnetne rezonance (1H-NMR), difrakcije rendgenskih zraka (XRD) i infracrvene spektrofotometrije sa Furijeovom transformacijom (FTIR). FTIR i UV-Vis metode korišćene su za analizu fotoosetljivih grupa naproksena u čistom i kompleksiranom obliku radi ispitivanja uticaja na fotostabilnost naproksena. Difraktogram inkluzionog kompleksa naproksen:2-hidroksipropil- β-ciklodekstrin ne sadrži pikove koji su karakteristični za difraktograme naproksena i HP-β-CD. Ovo ukazuje da je naproksen zaklonjen u šupljine domaćina prilikom molekularne inkapsulacije. Odsustvo karakterističnih pikova naproksena u FTIR spektru kompleksa ukazuje na formiranje supramolekularne strukture po tipu inkluzije. Hemijska pomeranja u 1H-NMR spektru nakon inkluzije naproksena u šupljine HP-β-CD, posebno H3, H6 i H9 protona i vodonika iz CH3 u HP-β-CD takođe ukazuju na formiranje molekulskog inkluzionog kompleksa. Ispitivanje fotostabilnosti naproksena, pomoću UV-Vis metode, ukazuje na degradaciju do aromatičnog ketona, 2-acetil-6-metoksinaftalena. FTIR analiza je pokazala da degradacija naproksena počinje nakon 15 dana izlaganja dnevnoj svetlosti i da je molekularnom inkapsulacijom on zaštićen od fotodegradacije za vremenski period od 30 dana.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "The improved photostability of naproxen in the inclusion complex with 2-hydroxypropyl-β-cyclodextrin, Poboljšana fotostabilnost naproksena u inkluzionom kompleksu sa 2-hidroksipropil-β-ciklodekstrinom",
pages = "370-361",
number = "4",
volume = "69",
doi = "10.2298/HEMIND131128050I"
}

Ilić-Stojanović, S., Nikolić, V. D., Nikolić, L. B., Zdravković, A. S., Kapor, A., Popsavin, M.,& Petrović, S.. (2015). The improved photostability of naproxen in the inclusion complex with 2-hydroxypropyl-β-cyclodextrin. in Hemijska industrija
Association of Chemical Engineers of Serbia., 69(4), 361-370.
https://doi.org/10.2298/HEMIND131128050I

Ilić-Stojanović S, Nikolić VD, Nikolić LB, Zdravković AS, Kapor A, Popsavin M, Petrović S. The improved photostability of naproxen in the inclusion complex with 2-hydroxypropyl-β-cyclodextrin. in Hemijska industrija. 2015;69(4):361-370.
doi:10.2298/HEMIND131128050I .

Ilić-Stojanović, Snežana, Nikolić, Vesna D., Nikolić, Ljubiša B., Zdravković, Aleksandar S., Kapor, Agneš, Popsavin, Mirjana, Petrović, Slobodan, "The improved photostability of naproxen in the inclusion complex with 2-hydroxypropyl-β-cyclodextrin" in Hemijska industrija, 69, no. 4 (2015):361-370,
https://doi.org/10.2298/HEMIND131128050I . .

TY  - JOUR
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Ljubiša B.
AU  - Nikolić, Vesna D.
AU  - Petrović, Slobodan
AU  - Zdravković, Aleksandar S.
AU  - Stamenković, Jakov
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2606
AB  - This paper presents the procedure for the synthesis of hydrogels based on N-isopropylacrylamide (NIPAM) and 2-hydroxypropyl methacrylate (HPMet) using dioxan as a solvent. Hydrogels were obtained by radical polymerization using different contents of ethylene glycol dimethacrylate as a cross-linker and benzoyl peroxide as the initiator. In the FTIR spectra of poly(N-isopropylacrylamide-co- 2-hydroxypropylmethacrylate) (p(NIPAM-HPMet)) xerogel, new absorption bands are present and there are no specific bands characteristic of a monomer NIPAM, which indicates that copolymerization was performed. SEM micrographs show porous surfaces of xerogels. The aim of this work was the investigation of the swelling behavior for all synthesized hydrogels with different cross-linker content at the temperature from 20 to 40°C. The sample of p(NIPAM-HPMet) with the lowest cross-linker content reached the highest swelling degree at 20°C (α=20.23). The degree of swelling decreased with increa-sing the cross-linker content and temperature, so the samples with highest cross-linker content at 40°C reached the swelling degree of 2.05.
AB  - U radu je izvršena sinteza hidrogelova na bazi N-izopropilakrilamida (NIPAM) i 2-hidroksipropil metakrilata (HPMet), primenom dioksana kao rastvarača. Hidro­gelovi su dobijeni radikalskom polimerizacijom uz upotrebu različitog sadržaja etilenglikoldimetakrilata (EDGM) kao umreživača i benzoil peroksida kao inicijatora. U FTIR spektrima kserogelova poli(N-izopropilakrillamid-ko-2-hidrok­sipropil metakrilata) (p(NIPAM-HPMet)) prisutne su nove apsorpcione trake, a nisu prisutne pojedine trake karakteristične za monomere, što ukazuje na izvršenu kopolimerizaciju. SEM mikrografije pokazuju poroznu površinu ksero­gelova. Svojstva pri bubrenju svih sintetisanih hidrogelova praćena su na temperaturama od 20 do 40°C. Najveću sposobnost bubrenja pokazao je uzorak p(NIPAM-HPMet)-a sa najmanjim sadržajem umreživača na 20°C (α = 20,23). Sposobnost bubrenja opada pri povećanju sadržaja umreživača i temperature, tako da uzorci sa najvećim sadržajem umreživača (3 mol% EGDM-a) na 40°C dostižu stepen bubrenja od samo 2,05.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Savremene tehnologije
T1  - The effect of the cross-linker content on the swelling properties of intelligent gels
T1  - Efekat sadržaja umreživača na svojstva bubrenja inteligentnih gelova
EP  - 15
IS  - 2
SP  - 10
VL  - 3
DO  - 10.5937/savteh1402010I
ER  - 

@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša B. and Nikolić, Vesna D. and Petrović, Slobodan and Zdravković, Aleksandar S. and Stamenković, Jakov",
year = "2014",
abstract = "This paper presents the procedure for the synthesis of hydrogels based on N-isopropylacrylamide (NIPAM) and 2-hydroxypropyl methacrylate (HPMet) using dioxan as a solvent. Hydrogels were obtained by radical polymerization using different contents of ethylene glycol dimethacrylate as a cross-linker and benzoyl peroxide as the initiator. In the FTIR spectra of poly(N-isopropylacrylamide-co- 2-hydroxypropylmethacrylate) (p(NIPAM-HPMet)) xerogel, new absorption bands are present and there are no specific bands characteristic of a monomer NIPAM, which indicates that copolymerization was performed. SEM micrographs show porous surfaces of xerogels. The aim of this work was the investigation of the swelling behavior for all synthesized hydrogels with different cross-linker content at the temperature from 20 to 40°C. The sample of p(NIPAM-HPMet) with the lowest cross-linker content reached the highest swelling degree at 20°C (α=20.23). The degree of swelling decreased with increa-sing the cross-linker content and temperature, so the samples with highest cross-linker content at 40°C reached the swelling degree of 2.05., U radu je izvršena sinteza hidrogelova na bazi N-izopropilakrilamida (NIPAM) i 2-hidroksipropil metakrilata (HPMet), primenom dioksana kao rastvarača. Hidro­gelovi su dobijeni radikalskom polimerizacijom uz upotrebu različitog sadržaja etilenglikoldimetakrilata (EDGM) kao umreživača i benzoil peroksida kao inicijatora. U FTIR spektrima kserogelova poli(N-izopropilakrillamid-ko-2-hidrok­sipropil metakrilata) (p(NIPAM-HPMet)) prisutne su nove apsorpcione trake, a nisu prisutne pojedine trake karakteristične za monomere, što ukazuje na izvršenu kopolimerizaciju. SEM mikrografije pokazuju poroznu površinu ksero­gelova. Svojstva pri bubrenju svih sintetisanih hidrogelova praćena su na temperaturama od 20 do 40°C. Najveću sposobnost bubrenja pokazao je uzorak p(NIPAM-HPMet)-a sa najmanjim sadržajem umreživača na 20°C (α = 20,23). Sposobnost bubrenja opada pri povećanju sadržaja umreživača i temperature, tako da uzorci sa najvećim sadržajem umreživača (3 mol% EGDM-a) na 40°C dostižu stepen bubrenja od samo 2,05.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Savremene tehnologije",
title = "The effect of the cross-linker content on the swelling properties of intelligent gels, Efekat sadržaja umreživača na svojstva bubrenja inteligentnih gelova",
pages = "15-10",
number = "2",
volume = "3",
doi = "10.5937/savteh1402010I"
}

Ilić-Stojanović, S., Nikolić, L. B., Nikolić, V. D., Petrović, S., Zdravković, A. S.,& Stamenković, J.. (2014). The effect of the cross-linker content on the swelling properties of intelligent gels. in Savremene tehnologije
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 3(2), 10-15.
https://doi.org/10.5937/savteh1402010I

Ilić-Stojanović S, Nikolić LB, Nikolić VD, Petrović S, Zdravković AS, Stamenković J. The effect of the cross-linker content on the swelling properties of intelligent gels. in Savremene tehnologije. 2014;3(2):10-15.
doi:10.5937/savteh1402010I .

Ilić-Stojanović, Snežana, Nikolić, Ljubiša B., Nikolić, Vesna D., Petrović, Slobodan, Zdravković, Aleksandar S., Stamenković, Jakov, "The effect of the cross-linker content on the swelling properties of intelligent gels" in Savremene tehnologije, 3, no. 2 (2014):10-15,
https://doi.org/10.5937/savteh1402010I . .

TY  - JOUR
AU  - Tacić, Ana
AU  - Savić, Ivan
AU  - Nikolić, Vesna
AU  - Savić, Ivana
AU  - Ilić-Stojanović, Snežana
AU  - Ilić, Dušica
AU  - Petrović, Slobodan
AU  - Popsavin, Mirjana
AU  - Kapor, Agneš
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2739
AB  - Sulfanilamide belongs to the group of drugs that have a bacteriostatic effect on different pathogenic microorganisms. This activity originates from the competitive antagonism with p-aminobenzoic acid, which is an integral part of folic acid. The safe use of sulfanilamide is limited due to poor solubility in the aqueous medium. Therefore, the aim of this paper is the synthesis of sulfanilamide, as well as preparing and structural characterization of its inclusion complexes with cyclodextrins. The crude sulfanilamide was obtained in the synthesis between acetanilide and chlorosulfonic acid according to the standard procedure. The synthesized sulfanilamide was recrystallized from water in order to obtain the satisfactory purity of the substance. Sufanilamide was complexed with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin by the co-precipitation method. A molecular encapsulation of sulfanilamide was confirmed by using FTIR, H-1-NMR, XRD and DSC methods. Phase-solubility techniques were used to assess the formation of the inclusion complex between sulfanilamide and cyclodextrins. The photostability of sulfanilamide and its inclusion complexes was estimated by UVB irradiation in a photochemical reactor by applying the UV-Vis method. Based on the UV-Vis analysis, sulfanilamide:2-hydroxypropyl-beta-cyclodextrin complex was presented as more photostable than sulfanilamide:beta-cyclodextrin complex and sulfanilamide. The obtained results enable the potential use of these inclusion complexes for the preparation of oral formulations due to the enhanced solubility of sulfanilamide.
PB  - Springer, Dordrecht
T2  - Journal of Inclusion Phenomena and Macrocyclic Chemistry
T1  - Inclusion complexes of sulfanilamide with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin
EP  - 124
IS  - 1-2
SP  - 113
VL  - 80
DO  - 10.1007/s10847-014-0410-x
ER  - 

@article{
author = "Tacić, Ana and Savić, Ivan and Nikolić, Vesna and Savić, Ivana and Ilić-Stojanović, Snežana and Ilić, Dušica and Petrović, Slobodan and Popsavin, Mirjana and Kapor, Agneš",
year = "2014",
abstract = "Sulfanilamide belongs to the group of drugs that have a bacteriostatic effect on different pathogenic microorganisms. This activity originates from the competitive antagonism with p-aminobenzoic acid, which is an integral part of folic acid. The safe use of sulfanilamide is limited due to poor solubility in the aqueous medium. Therefore, the aim of this paper is the synthesis of sulfanilamide, as well as preparing and structural characterization of its inclusion complexes with cyclodextrins. The crude sulfanilamide was obtained in the synthesis between acetanilide and chlorosulfonic acid according to the standard procedure. The synthesized sulfanilamide was recrystallized from water in order to obtain the satisfactory purity of the substance. Sufanilamide was complexed with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin by the co-precipitation method. A molecular encapsulation of sulfanilamide was confirmed by using FTIR, H-1-NMR, XRD and DSC methods. Phase-solubility techniques were used to assess the formation of the inclusion complex between sulfanilamide and cyclodextrins. The photostability of sulfanilamide and its inclusion complexes was estimated by UVB irradiation in a photochemical reactor by applying the UV-Vis method. Based on the UV-Vis analysis, sulfanilamide:2-hydroxypropyl-beta-cyclodextrin complex was presented as more photostable than sulfanilamide:beta-cyclodextrin complex and sulfanilamide. The obtained results enable the potential use of these inclusion complexes for the preparation of oral formulations due to the enhanced solubility of sulfanilamide.",
publisher = "Springer, Dordrecht",
journal = "Journal of Inclusion Phenomena and Macrocyclic Chemistry",
title = "Inclusion complexes of sulfanilamide with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin",
pages = "124-113",
number = "1-2",
volume = "80",
doi = "10.1007/s10847-014-0410-x"
}

Tacić, A., Savić, I., Nikolić, V., Savić, I., Ilić-Stojanović, S., Ilić, D., Petrović, S., Popsavin, M.,& Kapor, A.. (2014). Inclusion complexes of sulfanilamide with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin. in Journal of Inclusion Phenomena and Macrocyclic Chemistry
Springer, Dordrecht., 80(1-2), 113-124.
https://doi.org/10.1007/s10847-014-0410-x

Tacić A, Savić I, Nikolić V, Savić I, Ilić-Stojanović S, Ilić D, Petrović S, Popsavin M, Kapor A. Inclusion complexes of sulfanilamide with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin. in Journal of Inclusion Phenomena and Macrocyclic Chemistry. 2014;80(1-2):113-124.
doi:10.1007/s10847-014-0410-x .

Tacić, Ana, Savić, Ivan, Nikolić, Vesna, Savić, Ivana, Ilić-Stojanović, Snežana, Ilić, Dušica, Petrović, Slobodan, Popsavin, Mirjana, Kapor, Agneš, "Inclusion complexes of sulfanilamide with beta-cyclodextrin and 2-hydroxypropyl-beta-cyclodextrin" in Journal of Inclusion Phenomena and Macrocyclic Chemistry, 80, no. 1-2 (2014):113-124,
https://doi.org/10.1007/s10847-014-0410-x . .

TY  - JOUR
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Ljubiša B.
AU  - Nikolić, Vesna D.
AU  - Milić, Jela R.
AU  - Stamenković, Jakov
AU  - Nikolić, Goran M.
AU  - Petrović, Slobodan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2310
AB  - The method of the synthesis of poly(N-isopropylacrylamide-co-2-hydroxypropyl methacrylate) hydrogels obtained by radical polymerization is described. Their characterization was carried out by the determination of the quantity of residual monomers and by investigating their structure using FTIR. Three glass transitions were detected by DSC method. The porous surfaces of hydrogels with incorporated ibuprofen were shown in SEM micrographs. The swelling ratio of hydrogels decreased with the temperature increase and the swelling transport mechanism changed from non-Fickian to Fickian. Ibuprofen was incorporated in the hydrogel as a drug carrier and the released quantity depending on the temperature was monitored by HPLC. The hydrogel with the lower cross-linker content had the highest swelling degree (α = 34.72) at 10°C and released the largest amount of ibuprofen (64.21 mg/gxerogel) at 40C.
AB  - Prikazan je metod sinteze hidrogelova poli(N-izopropilakrilamid-ko-2-hidroksi-propilmetakrilata), p(NIPAM-ko-HPMet), sa 5 mol% monomera HPMet-a dobijenih radikalnom polimerizacijom. Karakterizacija sintetisanih hidrogelova je izvedena određivanjem količine rezidualnih monomera i izvršena je njihova strukturna analiza pomoću infracrvene spektroskopije (FTIR), diferencijalne skenirajuće kalorimetrije (DSC) i skenirajuće elektronske mikroskopije (SEM). FTIR spektri sintetisanih hidrogelova p(NIPAM-ko-HPMet)-a sa različitim sadržajem umreživača EGDM-a pokazuju uzajamnu sličnost u strukturi. Površinska struktura liofilizovanih hidrogelova je porozna i uočavaju se čestice uklopljenog ibuprofena. Termička svojstva kserogelova p(NIPAM-ko-HPMet)-a pokazuju tri staklasta prelaza sa endotermnim pikovima slabog intenziteta. Sadržaj rezidualnih monomera dovodi do zaključka da je konverzija monomera tokom sinteze gotovo kompletna. Kine-tika bubrenja hidrogelova pokazuje da se pri povećanju temperature od 20 na 40 °C mehanizam transporta tečnosti menja iz ne-Fikovog (proces bubrenja kontroliše difuzija tečnosti i relaksacija polimernih lanaca) u Fikov (kontrolisan samo difuzijom tečnosti). Mogućnost primene hidrogelova p(NIPAM-ko-HPMet)-a kao nosača lekova ispitivana je u zavisnosti od temperature. Ibuprofen, korišćen kao model lekovita supstanca, uklopljen je u hidrogel i količina oslobođene aktivne supstance određena je HPLC metodom. Utvrđeno je da uzorak hidrogela p(NIPAM-ko-HPMet)-a sa sadržajem umreživača od 1 mol% EGDM-a dostiže najveći stepen bubrenja (α = 34,72) na 10°C i otpušta najveću količinu ibuprofena na 40 °C (64,21 mg/gkserogel). Ispitana svojstva predstavljaju dobru osnovu za potencijalnu primenu hidrogelova kao nosača lekovitih supstanci sa modifikovanim oslobađanjem.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Synthesis and characterization of thermosensitive hydrogels and the investigation of modifiedrelease of ibuprofen
T1  - Sinteza i karakterizacija termoosetljivih hidrogelova i ispitivanje modifikovanog oslobađanja ibuprofena
EP  - 912
IS  - 6
SP  - 901
VL  - 67
DO  - 10.2298/HEMIND130119038I
ER  - 

@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša B. and Nikolić, Vesna D. and Milić, Jela R. and Stamenković, Jakov and Nikolić, Goran M. and Petrović, Slobodan",
year = "2013",
abstract = "The method of the synthesis of poly(N-isopropylacrylamide-co-2-hydroxypropyl methacrylate) hydrogels obtained by radical polymerization is described. Their characterization was carried out by the determination of the quantity of residual monomers and by investigating their structure using FTIR. Three glass transitions were detected by DSC method. The porous surfaces of hydrogels with incorporated ibuprofen were shown in SEM micrographs. The swelling ratio of hydrogels decreased with the temperature increase and the swelling transport mechanism changed from non-Fickian to Fickian. Ibuprofen was incorporated in the hydrogel as a drug carrier and the released quantity depending on the temperature was monitored by HPLC. The hydrogel with the lower cross-linker content had the highest swelling degree (α = 34.72) at 10°C and released the largest amount of ibuprofen (64.21 mg/gxerogel) at 40C., Prikazan je metod sinteze hidrogelova poli(N-izopropilakrilamid-ko-2-hidroksi-propilmetakrilata), p(NIPAM-ko-HPMet), sa 5 mol% monomera HPMet-a dobijenih radikalnom polimerizacijom. Karakterizacija sintetisanih hidrogelova je izvedena određivanjem količine rezidualnih monomera i izvršena je njihova strukturna analiza pomoću infracrvene spektroskopije (FTIR), diferencijalne skenirajuće kalorimetrije (DSC) i skenirajuće elektronske mikroskopije (SEM). FTIR spektri sintetisanih hidrogelova p(NIPAM-ko-HPMet)-a sa različitim sadržajem umreživača EGDM-a pokazuju uzajamnu sličnost u strukturi. Površinska struktura liofilizovanih hidrogelova je porozna i uočavaju se čestice uklopljenog ibuprofena. Termička svojstva kserogelova p(NIPAM-ko-HPMet)-a pokazuju tri staklasta prelaza sa endotermnim pikovima slabog intenziteta. Sadržaj rezidualnih monomera dovodi do zaključka da je konverzija monomera tokom sinteze gotovo kompletna. Kine-tika bubrenja hidrogelova pokazuje da se pri povećanju temperature od 20 na 40 °C mehanizam transporta tečnosti menja iz ne-Fikovog (proces bubrenja kontroliše difuzija tečnosti i relaksacija polimernih lanaca) u Fikov (kontrolisan samo difuzijom tečnosti). Mogućnost primene hidrogelova p(NIPAM-ko-HPMet)-a kao nosača lekova ispitivana je u zavisnosti od temperature. Ibuprofen, korišćen kao model lekovita supstanca, uklopljen je u hidrogel i količina oslobođene aktivne supstance određena je HPLC metodom. Utvrđeno je da uzorak hidrogela p(NIPAM-ko-HPMet)-a sa sadržajem umreživača od 1 mol% EGDM-a dostiže najveći stepen bubrenja (α = 34,72) na 10°C i otpušta najveću količinu ibuprofena na 40 °C (64,21 mg/gkserogel). Ispitana svojstva predstavljaju dobru osnovu za potencijalnu primenu hidrogelova kao nosača lekovitih supstanci sa modifikovanim oslobađanjem.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Synthesis and characterization of thermosensitive hydrogels and the investigation of modifiedrelease of ibuprofen, Sinteza i karakterizacija termoosetljivih hidrogelova i ispitivanje modifikovanog oslobađanja ibuprofena",
pages = "912-901",
number = "6",
volume = "67",
doi = "10.2298/HEMIND130119038I"
}

Ilić-Stojanović, S., Nikolić, L. B., Nikolić, V. D., Milić, J. R., Stamenković, J., Nikolić, G. M.,& Petrović, S.. (2013). Synthesis and characterization of thermosensitive hydrogels and the investigation of modifiedrelease of ibuprofen. in Hemijska industrija
Association of Chemical Engineers of Serbia., 67(6), 901-912.
https://doi.org/10.2298/HEMIND130119038I

Ilić-Stojanović S, Nikolić LB, Nikolić VD, Milić JR, Stamenković J, Nikolić GM, Petrović S. Synthesis and characterization of thermosensitive hydrogels and the investigation of modifiedrelease of ibuprofen. in Hemijska industrija. 2013;67(6):901-912.
doi:10.2298/HEMIND130119038I .

Ilić-Stojanović, Snežana, Nikolić, Ljubiša B., Nikolić, Vesna D., Milić, Jela R., Stamenković, Jakov, Nikolić, Goran M., Petrović, Slobodan, "Synthesis and characterization of thermosensitive hydrogels and the investigation of modifiedrelease of ibuprofen" in Hemijska industrija, 67, no. 6 (2013):901-912,
https://doi.org/10.2298/HEMIND130119038I . .

TY  - JOUR
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Ljubiša B.
AU  - Nikolić, Vesna D.
AU  - Milić, Jela R.
AU  - Petrović, Slobodan
AU  - Nikolić, Goran M.
AU  - Kapor, Agneš
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2044
AB  - Over the past years, many scientific research studies have been focused on thermo-sensitive hydrogels containing N-isopropylacrylamide (NIPAM) as a monomer. The NIPAM based hydrogels with 20 mol% 2-hydroxypropyl methacrylate (HPMet) were synthesized using ethylene glycol dimethacrylate as a cross-linker. The characterization of xerogel and phenacetin using Fourier transform infrared (FTIR) spectroscopy and Scanning electron microscopy (SEM)confirm the performed synthesis with satisfactory purity as well as loading of phenacetin into hydrogel. The swelling transport mechanism at simulated physiological conditions (pH 2.20 and 7.40 at 37 °C) is described by the time-independent kinetics. The potential application of synthesized hydrogels for the controlled release of phenacetin as a model drug was investigated at simulated physiological conditions by HPLC method. .
AB  - Brojna naučna istraživanja tokom poslednjih godina usmerena su na hidro- gelove koji sadrže N-izopropilakrilamid (NIPAM) kao monomer. Hidrogelovi na bazi NIPAM-a sa 20 mol% 2-hidroksipropilmetakrilata (HPMet), p(NIPAM-co-HPMet) sintetisani su korišćenjem različitih količina umreživača etilenglikoldimetakrilata (EGDM) i izvršena je njihova karakterizacija. FTIR spektar kserogela ukazuje na izvršenu sintezu iniciranjem pomoću radikala, a FTIR spektar fenacetina potvrđuje da je dobijen proizvod zadovoljavajuće čistoće. FTIR spektar kserogela sa fenacetinom ukazuju na izvršeno uklapanje fenacetina u unutrašnjost gela. SEM mikrografije nabubrelih i liofilizovanih uzoraka hidrogelova pokazuju da je njihova površina porozna, a uzorci sa uklopljenim fenacetinom pokazuju prisustvo fenacetina u porama hidrogela. Rezultati bubrenja pokazuju da termoosetljivi hidrogelovi NA 20 °C ispoljavaju anomaliju u mehanizmu difuzije, bubrenje ne prati Fickov zakon, već je proces bubrenja kontrolisan difuzijom vode i relaksacijom polimernih lanaca. Transportni mehanizam bubrenja na 40 °C može se svrstati u tip III, sa vremenski nezavisnom kinetikom. Slično ponašanje pri bubrenju ovi hidrogelovi pokazuju u simuliranim fiziološkim uslovima (pH 2,20 i 7,40 na 37 °C). Potencijalna primena dobijenih hidrogelova kao nosača lekova sa kontrolisanim oslobađanjem fenacetina, kao model leka, ispitivana je pomoću HPLC metode. Rezultati pokazuju da je u prvih 24 sata otpuštena veća količina fenacetina na 37 °C u rastvoru pH 7,40 (70-90%) u odnosu na količinu otpuštenog fenacetina u rastvoru pH 2,20 (50-65% od apsorbovane količine). Količina otpuštenog fenacetina srazmerno se smanjuje sa povećanjem gustine umreženja gelova. Proces otpuštanja lekovite supstance prati Fikov zakon difuzije za obe pH vrednosti. Dobijeni termoosetljivi hidrogelovi p(NIPAM-co-HPMet) pokazuju dobre mogućnosti za primenu kao 'inteligentni' nosači lekova (npr. fenacetina) sa kontrolisanom oslobađanjem.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Potential application of thermo-sensitive hydrogels for controlled release of phenacetin
T1  - Potencijalna primena termoosetljivih hidrogelova za kontrolisano otpuštanje fenacetina
EP  - 839
IS  - 6
SP  - 831
VL  - 66
DO  - 10.2298/HEMIND120222089I
ER  - 

@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša B. and Nikolić, Vesna D. and Milić, Jela R. and Petrović, Slobodan and Nikolić, Goran M. and Kapor, Agneš",
year = "2012",
abstract = "Over the past years, many scientific research studies have been focused on thermo-sensitive hydrogels containing N-isopropylacrylamide (NIPAM) as a monomer. The NIPAM based hydrogels with 20 mol% 2-hydroxypropyl methacrylate (HPMet) were synthesized using ethylene glycol dimethacrylate as a cross-linker. The characterization of xerogel and phenacetin using Fourier transform infrared (FTIR) spectroscopy and Scanning electron microscopy (SEM)confirm the performed synthesis with satisfactory purity as well as loading of phenacetin into hydrogel. The swelling transport mechanism at simulated physiological conditions (pH 2.20 and 7.40 at 37 °C) is described by the time-independent kinetics. The potential application of synthesized hydrogels for the controlled release of phenacetin as a model drug was investigated at simulated physiological conditions by HPLC method. ., Brojna naučna istraživanja tokom poslednjih godina usmerena su na hidro- gelove koji sadrže N-izopropilakrilamid (NIPAM) kao monomer. Hidrogelovi na bazi NIPAM-a sa 20 mol% 2-hidroksipropilmetakrilata (HPMet), p(NIPAM-co-HPMet) sintetisani su korišćenjem različitih količina umreživača etilenglikoldimetakrilata (EGDM) i izvršena je njihova karakterizacija. FTIR spektar kserogela ukazuje na izvršenu sintezu iniciranjem pomoću radikala, a FTIR spektar fenacetina potvrđuje da je dobijen proizvod zadovoljavajuće čistoće. FTIR spektar kserogela sa fenacetinom ukazuju na izvršeno uklapanje fenacetina u unutrašnjost gela. SEM mikrografije nabubrelih i liofilizovanih uzoraka hidrogelova pokazuju da je njihova površina porozna, a uzorci sa uklopljenim fenacetinom pokazuju prisustvo fenacetina u porama hidrogela. Rezultati bubrenja pokazuju da termoosetljivi hidrogelovi NA 20 °C ispoljavaju anomaliju u mehanizmu difuzije, bubrenje ne prati Fickov zakon, već je proces bubrenja kontrolisan difuzijom vode i relaksacijom polimernih lanaca. Transportni mehanizam bubrenja na 40 °C može se svrstati u tip III, sa vremenski nezavisnom kinetikom. Slično ponašanje pri bubrenju ovi hidrogelovi pokazuju u simuliranim fiziološkim uslovima (pH 2,20 i 7,40 na 37 °C). Potencijalna primena dobijenih hidrogelova kao nosača lekova sa kontrolisanim oslobađanjem fenacetina, kao model leka, ispitivana je pomoću HPLC metode. Rezultati pokazuju da je u prvih 24 sata otpuštena veća količina fenacetina na 37 °C u rastvoru pH 7,40 (70-90%) u odnosu na količinu otpuštenog fenacetina u rastvoru pH 2,20 (50-65% od apsorbovane količine). Količina otpuštenog fenacetina srazmerno se smanjuje sa povećanjem gustine umreženja gelova. Proces otpuštanja lekovite supstance prati Fikov zakon difuzije za obe pH vrednosti. Dobijeni termoosetljivi hidrogelovi p(NIPAM-co-HPMet) pokazuju dobre mogućnosti za primenu kao 'inteligentni' nosači lekova (npr. fenacetina) sa kontrolisanom oslobađanjem.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Potential application of thermo-sensitive hydrogels for controlled release of phenacetin, Potencijalna primena termoosetljivih hidrogelova za kontrolisano otpuštanje fenacetina",
pages = "839-831",
number = "6",
volume = "66",
doi = "10.2298/HEMIND120222089I"
}

Ilić-Stojanović, S., Nikolić, L. B., Nikolić, V. D., Milić, J. R., Petrović, S., Nikolić, G. M.,& Kapor, A.. (2012). Potential application of thermo-sensitive hydrogels for controlled release of phenacetin. in Hemijska industrija
Association of Chemical Engineers of Serbia., 66(6), 831-839.
https://doi.org/10.2298/HEMIND120222089I

Ilić-Stojanović S, Nikolić LB, Nikolić VD, Milić JR, Petrović S, Nikolić GM, Kapor A. Potential application of thermo-sensitive hydrogels for controlled release of phenacetin. in Hemijska industrija. 2012;66(6):831-839.
doi:10.2298/HEMIND120222089I .

Ilić-Stojanović, Snežana, Nikolić, Ljubiša B., Nikolić, Vesna D., Milić, Jela R., Petrović, Slobodan, Nikolić, Goran M., Kapor, Agneš, "Potential application of thermo-sensitive hydrogels for controlled release of phenacetin" in Hemijska industrija, 66, no. 6 (2012):831-839,
https://doi.org/10.2298/HEMIND120222089I . .

TY  - JOUR
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Ljubiša B.
AU  - Nikolić, Vesna
AU  - Stanković, Mihajlo
AU  - Stamenković, Jakov
AU  - Mladenović-Ranisavljević, Ivana
AU  - Petrović, Slobodan
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2069
AB  - The synthesis of the poly(N-isopropylacrylamide-co-2-hydroxypropyl-methacrylate) hydrogel along with the analysis of the residual monomers content and influence of monomer and crosslinker molar ratios on the swelling behaviour was investigated. Synthesis of thermosensitive hydrogel based on N-isopropylacrylamide was carried out with the molar ratios of 5, 10, 15 and 20 mol% of monomer 2-hydroxypropyl-methacrylate, in the presence of ethylene glycol dimethacrylate as a crosslinker (1, 1.5, 2 and 3 mol%) and 2,2'-azobis(2-methylpropionitrile) as an initiator in acetone. The quantities of residual monomers in the synthesized copolymers were determined by HPLC method, ranging from 0.19 to 0.49% for N-isopropylacrylamide and from 0.13 to 0.63% for 2- -hydroxypropyl-methacrylate, counting the amount of xerogel. The hydrogels swelling ratio depending on time at 20 and 40°C was examined. It was found that the hydrogel with 5 mol% 2-hydroxypropyl-methacrylate and 1 mol% ethylene glycol dimethacrylate had the highest degree of swelling (( = 29.59) at 20°C, and that the hydrogel with 20 mol% 2-hydroxypropyl-methacrylate and 3 mol% ethylene glycol dimethacrylate had the lowest swelling degree ((=2.17) at 40°C.
AB  - Predmet ovog rada je sinteza kopolimernog hidrogela poli(N-izopropilakrilamid-ko-2-hidroksipropilmetakrilata), analiza sadržaja rezidualnih monomera i ispitivanje uticaja molskog odnosa monomera i umreživača na karakteristike bubrenja. Sinteza termoosetljivog hidrogela na bazi N-izopropilakrilamida izvršena je sa molarnim udelom 5, 10, 15 i 20 mol% monomera 2-hidroksipropilmetakrilata, u prisustvu umreživača etilenglikoldimetakrilata (u koncentraciji: 1, 1,5 , 2 i 3 mol%) i inicijatora 2,2'-azobis(2-metilpropionitrila) u acetonu. Sadržaj zaostalih monomera u sintetizovanim kopolimerima analiziran je pomoću HPLC metode. Vrednosti se nalaze u granicama od 0,19 do 0,49% za N-izopropilakrilamid i od 0,13 do 0,63% za 2-hidroksipropilmetakrilat računajući na količinu kserogela. Ispitan je stepen bubrenja dobijenih hidrogelova u zavisnosti od temperature. Najveći stepen bubrenja (( = 29,59) pri konstantnoj temperaturi od 20°C dostigao je uzorak hidrogela sa 5 mol% 2-hidroksipropilmetakrilata i 1 mol% umreživača EGDM-a, a najmanji (( = 2.17) pri temperaturi od 40°C dostigao je uzorak hidrogela sa 20 mol% 2-hidroksipropilmetakrilata i 3 mol% umreživača EGDM-a. PR Projekat Ministarstva nauke Republike Srbije, br. TR 34012.
PB  - Association of the Chemical Engineers of Serbia
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Influence of monomer and crosslinker molar ratio on the swelling behaviour of thermosensitive hydrogels
T1  - Uticaj molarnog odnosa monomera i umreživača na karakteristike bubrenja termoosetljivih hidrogelova
EP  - 9
IS  - 1
SP  - 1
VL  - 18
DO  - 10.2298/CICEQ110711040I
ER  - 

@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša B. and Nikolić, Vesna and Stanković, Mihajlo and Stamenković, Jakov and Mladenović-Ranisavljević, Ivana and Petrović, Slobodan",
year = "2012",
abstract = "The synthesis of the poly(N-isopropylacrylamide-co-2-hydroxypropyl-methacrylate) hydrogel along with the analysis of the residual monomers content and influence of monomer and crosslinker molar ratios on the swelling behaviour was investigated. Synthesis of thermosensitive hydrogel based on N-isopropylacrylamide was carried out with the molar ratios of 5, 10, 15 and 20 mol% of monomer 2-hydroxypropyl-methacrylate, in the presence of ethylene glycol dimethacrylate as a crosslinker (1, 1.5, 2 and 3 mol%) and 2,2'-azobis(2-methylpropionitrile) as an initiator in acetone. The quantities of residual monomers in the synthesized copolymers were determined by HPLC method, ranging from 0.19 to 0.49% for N-isopropylacrylamide and from 0.13 to 0.63% for 2- -hydroxypropyl-methacrylate, counting the amount of xerogel. The hydrogels swelling ratio depending on time at 20 and 40°C was examined. It was found that the hydrogel with 5 mol% 2-hydroxypropyl-methacrylate and 1 mol% ethylene glycol dimethacrylate had the highest degree of swelling (( = 29.59) at 20°C, and that the hydrogel with 20 mol% 2-hydroxypropyl-methacrylate and 3 mol% ethylene glycol dimethacrylate had the lowest swelling degree ((=2.17) at 40°C., Predmet ovog rada je sinteza kopolimernog hidrogela poli(N-izopropilakrilamid-ko-2-hidroksipropilmetakrilata), analiza sadržaja rezidualnih monomera i ispitivanje uticaja molskog odnosa monomera i umreživača na karakteristike bubrenja. Sinteza termoosetljivog hidrogela na bazi N-izopropilakrilamida izvršena je sa molarnim udelom 5, 10, 15 i 20 mol% monomera 2-hidroksipropilmetakrilata, u prisustvu umreživača etilenglikoldimetakrilata (u koncentraciji: 1, 1,5 , 2 i 3 mol%) i inicijatora 2,2'-azobis(2-metilpropionitrila) u acetonu. Sadržaj zaostalih monomera u sintetizovanim kopolimerima analiziran je pomoću HPLC metode. Vrednosti se nalaze u granicama od 0,19 do 0,49% za N-izopropilakrilamid i od 0,13 do 0,63% za 2-hidroksipropilmetakrilat računajući na količinu kserogela. Ispitan je stepen bubrenja dobijenih hidrogelova u zavisnosti od temperature. Najveći stepen bubrenja (( = 29,59) pri konstantnoj temperaturi od 20°C dostigao je uzorak hidrogela sa 5 mol% 2-hidroksipropilmetakrilata i 1 mol% umreživača EGDM-a, a najmanji (( = 2.17) pri temperaturi od 40°C dostigao je uzorak hidrogela sa 20 mol% 2-hidroksipropilmetakrilata i 3 mol% umreživača EGDM-a. PR Projekat Ministarstva nauke Republike Srbije, br. TR 34012.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Influence of monomer and crosslinker molar ratio on the swelling behaviour of thermosensitive hydrogels, Uticaj molarnog odnosa monomera i umreživača na karakteristike bubrenja termoosetljivih hidrogelova",
pages = "9-1",
number = "1",
volume = "18",
doi = "10.2298/CICEQ110711040I"
}

Ilić-Stojanović, S., Nikolić, L. B., Nikolić, V., Stanković, M., Stamenković, J., Mladenović-Ranisavljević, I.,& Petrović, S.. (2012). Influence of monomer and crosslinker molar ratio on the swelling behaviour of thermosensitive hydrogels. in Chemical Industry & Chemical Engineering Quarterly
Association of the Chemical Engineers of Serbia., 18(1), 1-9.
https://doi.org/10.2298/CICEQ110711040I

Ilić-Stojanović S, Nikolić LB, Nikolić V, Stanković M, Stamenković J, Mladenović-Ranisavljević I, Petrović S. Influence of monomer and crosslinker molar ratio on the swelling behaviour of thermosensitive hydrogels. in Chemical Industry & Chemical Engineering Quarterly. 2012;18(1):1-9.
doi:10.2298/CICEQ110711040I .

Ilić-Stojanović, Snežana, Nikolić, Ljubiša B., Nikolić, Vesna, Stanković, Mihajlo, Stamenković, Jakov, Mladenović-Ranisavljević, Ivana, Petrović, Slobodan, "Influence of monomer and crosslinker molar ratio on the swelling behaviour of thermosensitive hydrogels" in Chemical Industry & Chemical Engineering Quarterly, 18, no. 1 (2012):1-9,
https://doi.org/10.2298/CICEQ110711040I . .

TY  - JOUR
AU  - Ilić-Stojanović, Snežana
AU  - Nikolić, Ljubiša B.
AU  - Nikolić, Vesna
AU  - Petrović, Slobodan
AU  - Stanković, Mihajlo
AU  - Mladenović-Ranisavljević, Ivana
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1837
AB  - Hydrogels are three-dimensional cross-linked hydrophilic polymers that swell in water and aqueous solutions without dissolving in them. They are very sensitive to environmental stimulus, which is manifested by a sharp phase transition. This feature is important for their application in the pharmaceutical field, especially for making formulations with controlled release of active ingredients, with the correction of the solubility, degradation and their toxicity reducing. Because of the compatibility with living tissues, hydrogels can be used in different medical purposes (for making contact lenses, stents, balloon catheters, artificial muscles, substitutes for arteries and veins, trachea, oviduct). This work presents methods (chemical and physical) for obtaining hydrogels, their properties and sensitivity to environmental stimuli (temperature, pH, magnetic field), as well as their potential application in medicine and pharmacy.
AB  - Hidrogelovi su umreženi trodimenzionalni hidrofilni polimeri koji bubre u vodi i vodenim rastvorima, a sami se ne rastvaraju u njima. Jako su osetljivi na spoljne stimulanse, što se manifestuje oštrim faznim prelazom. Ova osobina je važna za njihovu primenu u oblasti farmacije, i to pre svega za izradu formulacija sa kontrolisanim oslobađanjem aktivnih principa, uz korigovanje rastvorljivosti, degradacije i smanjenja njihove toksičnosti. Zahvaljujući kompatibilnosti sa živim tkivima, primena hidrogelova je važna i za rešavanje različitih medicinskih potreba (za izradu kontaktnih sočiva, stentova, balon katetera, veštačkih mišića, zamena za arterije i vene, traheja, jajovoda). U radu su detaljno prikazane metode za njihovo dobijanje (hemijske i fizičke), svojstva i osetljivost na spoljne stimulanse (temperatura, pH, magnetno polje), kao i moguće primene u oblasti medicine i farmacije.
PB  - Univerzitet u Nišu, Niš
T2  - Facta universitatis - series: Physics, Chemistry and Technology
T1  - Stimuli-sensitive hydrogels for pharmaceutical and medical applications
T1  - Hidrogelovi osetljivi na spoljne stimulanse za farmaceutsku i medicinsku primenu
EP  - 56
IS  - 1
SP  - 37
VL  - 9
DO  - 10.2298/FUPCT1101037I
ER  - 

@article{
author = "Ilić-Stojanović, Snežana and Nikolić, Ljubiša B. and Nikolić, Vesna and Petrović, Slobodan and Stanković, Mihajlo and Mladenović-Ranisavljević, Ivana",
year = "2011",
abstract = "Hydrogels are three-dimensional cross-linked hydrophilic polymers that swell in water and aqueous solutions without dissolving in them. They are very sensitive to environmental stimulus, which is manifested by a sharp phase transition. This feature is important for their application in the pharmaceutical field, especially for making formulations with controlled release of active ingredients, with the correction of the solubility, degradation and their toxicity reducing. Because of the compatibility with living tissues, hydrogels can be used in different medical purposes (for making contact lenses, stents, balloon catheters, artificial muscles, substitutes for arteries and veins, trachea, oviduct). This work presents methods (chemical and physical) for obtaining hydrogels, their properties and sensitivity to environmental stimuli (temperature, pH, magnetic field), as well as their potential application in medicine and pharmacy., Hidrogelovi su umreženi trodimenzionalni hidrofilni polimeri koji bubre u vodi i vodenim rastvorima, a sami se ne rastvaraju u njima. Jako su osetljivi na spoljne stimulanse, što se manifestuje oštrim faznim prelazom. Ova osobina je važna za njihovu primenu u oblasti farmacije, i to pre svega za izradu formulacija sa kontrolisanim oslobađanjem aktivnih principa, uz korigovanje rastvorljivosti, degradacije i smanjenja njihove toksičnosti. Zahvaljujući kompatibilnosti sa živim tkivima, primena hidrogelova je važna i za rešavanje različitih medicinskih potreba (za izradu kontaktnih sočiva, stentova, balon katetera, veštačkih mišića, zamena za arterije i vene, traheja, jajovoda). U radu su detaljno prikazane metode za njihovo dobijanje (hemijske i fizičke), svojstva i osetljivost na spoljne stimulanse (temperatura, pH, magnetno polje), kao i moguće primene u oblasti medicine i farmacije.",
publisher = "Univerzitet u Nišu, Niš",
journal = "Facta universitatis - series: Physics, Chemistry and Technology",
title = "Stimuli-sensitive hydrogels for pharmaceutical and medical applications, Hidrogelovi osetljivi na spoljne stimulanse za farmaceutsku i medicinsku primenu",
pages = "56-37",
number = "1",
volume = "9",
doi = "10.2298/FUPCT1101037I"
}

Ilić-Stojanović, S., Nikolić, L. B., Nikolić, V., Petrović, S., Stanković, M.,& Mladenović-Ranisavljević, I.. (2011). Stimuli-sensitive hydrogels for pharmaceutical and medical applications. in Facta universitatis - series: Physics, Chemistry and Technology
Univerzitet u Nišu, Niš., 9(1), 37-56.
https://doi.org/10.2298/FUPCT1101037I

Ilić-Stojanović S, Nikolić LB, Nikolić V, Petrović S, Stanković M, Mladenović-Ranisavljević I. Stimuli-sensitive hydrogels for pharmaceutical and medical applications. in Facta universitatis - series: Physics, Chemistry and Technology. 2011;9(1):37-56.
doi:10.2298/FUPCT1101037I .

Ilić-Stojanović, Snežana, Nikolić, Ljubiša B., Nikolić, Vesna, Petrović, Slobodan, Stanković, Mihajlo, Mladenović-Ranisavljević, Ivana, "Stimuli-sensitive hydrogels for pharmaceutical and medical applications" in Facta universitatis - series: Physics, Chemistry and Technology, 9, no. 1 (2011):37-56,
https://doi.org/10.2298/FUPCT1101037I . .