In situ chitosan gelation initiated by atmospheric plasma treatment
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2014
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This work reports on the feasibility of atmospheric dielectric barrier discharge (DBD) plasma as a novel synthetic pathway for the liquid phase gelation of chitosan. The DBD plasma chitosan gelation process did not significantly alter the chemical structure of the biopolymer as confirmed by FTIR study. However, the oxidation processes and local heating effect associated with the solvent evaporation during the plasma treatment could provoke both reaction of chitosan degradation and the cleavage of β-1-4-glycosidic linkages with the concomitant generation of aldehyde groups able to crosslink via Schiff-base with amino groups from other chitosan molecules. Shear viscosity measurements suggested the formation of chitosan fragments of lower molecular weight after the plasma treatment of 1% (w/v) chitosan and fragments of higher molecular weight after the plasma treatment of 2% (w/v) chitosan. The crosslinking density of hydrogels generated during the in situ DBD plasma chitosan gelation pro...cess increased as a function of the treatment time and concentration of chitosan. As of consequence of the increase of the cross-linking density, the equilibrium swelling ratio and water content decreased significantly.
Ključne reči:
Chitosan / DBD plasma / Hydrogels / In situ gelation / SwellingIzvor:
Carbohydrate Polymers, 2014, 103, 1, 472-479Izdavač:
- Elsevier Ltd.
Finansiranje / projekti:
- The Consejo Superior de Investigaciones Científicas (Proyecto Intramural de Frontera PIE 200980I119).
- Catalan Agency for University and Research Grants (Project 2010 PIV 00024).
DOI: 10.1016/j.carbpol.2013.12.084
ISSN: 0144-8617
WoS: 000332812600063
Scopus: 2-s2.0-84892727880
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Molina, R. AU - Jovančić, P. AU - Vilchez, S. AU - Tzanov, T. AU - Solans, C. PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5773 AB - This work reports on the feasibility of atmospheric dielectric barrier discharge (DBD) plasma as a novel synthetic pathway for the liquid phase gelation of chitosan. The DBD plasma chitosan gelation process did not significantly alter the chemical structure of the biopolymer as confirmed by FTIR study. However, the oxidation processes and local heating effect associated with the solvent evaporation during the plasma treatment could provoke both reaction of chitosan degradation and the cleavage of β-1-4-glycosidic linkages with the concomitant generation of aldehyde groups able to crosslink via Schiff-base with amino groups from other chitosan molecules. Shear viscosity measurements suggested the formation of chitosan fragments of lower molecular weight after the plasma treatment of 1% (w/v) chitosan and fragments of higher molecular weight after the plasma treatment of 2% (w/v) chitosan. The crosslinking density of hydrogels generated during the in situ DBD plasma chitosan gelation process increased as a function of the treatment time and concentration of chitosan. As of consequence of the increase of the cross-linking density, the equilibrium swelling ratio and water content decreased significantly. PB - Elsevier Ltd. T2 - Carbohydrate Polymers T1 - In situ chitosan gelation initiated by atmospheric plasma treatment EP - 479 IS - 1 SP - 472 VL - 103 DO - 10.1016/j.carbpol.2013.12.084 ER -
@article{ author = "Molina, R. and Jovančić, P. and Vilchez, S. and Tzanov, T. and Solans, C.", year = "2014", abstract = "This work reports on the feasibility of atmospheric dielectric barrier discharge (DBD) plasma as a novel synthetic pathway for the liquid phase gelation of chitosan. The DBD plasma chitosan gelation process did not significantly alter the chemical structure of the biopolymer as confirmed by FTIR study. However, the oxidation processes and local heating effect associated with the solvent evaporation during the plasma treatment could provoke both reaction of chitosan degradation and the cleavage of β-1-4-glycosidic linkages with the concomitant generation of aldehyde groups able to crosslink via Schiff-base with amino groups from other chitosan molecules. Shear viscosity measurements suggested the formation of chitosan fragments of lower molecular weight after the plasma treatment of 1% (w/v) chitosan and fragments of higher molecular weight after the plasma treatment of 2% (w/v) chitosan. The crosslinking density of hydrogels generated during the in situ DBD plasma chitosan gelation process increased as a function of the treatment time and concentration of chitosan. As of consequence of the increase of the cross-linking density, the equilibrium swelling ratio and water content decreased significantly.", publisher = "Elsevier Ltd.", journal = "Carbohydrate Polymers", title = "In situ chitosan gelation initiated by atmospheric plasma treatment", pages = "479-472", number = "1", volume = "103", doi = "10.1016/j.carbpol.2013.12.084" }
Molina, R., Jovančić, P., Vilchez, S., Tzanov, T.,& Solans, C.. (2014). In situ chitosan gelation initiated by atmospheric plasma treatment. in Carbohydrate Polymers Elsevier Ltd.., 103(1), 472-479. https://doi.org/10.1016/j.carbpol.2013.12.084
Molina R, Jovančić P, Vilchez S, Tzanov T, Solans C. In situ chitosan gelation initiated by atmospheric plasma treatment. in Carbohydrate Polymers. 2014;103(1):472-479. doi:10.1016/j.carbpol.2013.12.084 .
Molina, R., Jovančić, P., Vilchez, S., Tzanov, T., Solans, C., "In situ chitosan gelation initiated by atmospheric plasma treatment" in Carbohydrate Polymers, 103, no. 1 (2014):472-479, https://doi.org/10.1016/j.carbpol.2013.12.084 . .