PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS

This study is concerned to elucidate the interaction behavior of films consisted of gelatin and carboxymethylcellulose, which are polyelectrolytes and have applications in tissues engineering. These films were chemically cross-linked using glutaraldehyde. The decrease of framework in triple helix of...

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Autores principales:	ASMA,CHETOUANI, MERIEM,ELKOLLI, MAHMOUD,BOUNEKHEL, DJAAFER,BENACHOUR
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	Biocompatible polymers electrostatic interaction crosslinking mechanical properties AFM
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100008
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spelling	oai:scielo:S0717-970720140001000082015-11-12PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELSASMA,CHETOUANIMERIEM,ELKOLLIMAHMOUD,BOUNEKHELDJAAFER,BENACHOUR Biocompatible polymers electrostatic interaction crosslinking mechanical properties AFM This study is concerned to elucidate the interaction behavior of films consisted of gelatin and carboxymethylcellulose, which are polyelectrolytes and have applications in tissues engineering. These films were chemically cross-linked using glutaraldehyde. The decrease of framework in triple helix of gelatin in the presence of polysaccharide and/or the cross-linking agent increases until a total disappearance was showed by XRD, the disappearance of macroporous gelatin structure in the presence of additives has been confirmed by SEM and AFM. According to DSC analysis, glass transition temperature (Tg) increases and decreases as GTA and CMC were added, respectively. It was shown that swelling of macroporous structure in pseudophysiological mediums was more absorbent and used electrolytes exert an osmotic pressure or ionic strength inducing higher swelling. Also, it was found that diffusion mechanism is directly related to gelatin structure. On the other hand, the incorporation of CMC improves the flexibility of matrice.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100008en10.4067/S0717-97072014000100008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Biocompatible polymers electrostatic interaction crosslinking mechanical properties AFM
spellingShingle	Biocompatible polymers electrostatic interaction crosslinking mechanical properties AFM ASMA,CHETOUANI MERIEM,ELKOLLI MAHMOUD,BOUNEKHEL DJAAFER,BENACHOUR PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS
description	This study is concerned to elucidate the interaction behavior of films consisted of gelatin and carboxymethylcellulose, which are polyelectrolytes and have applications in tissues engineering. These films were chemically cross-linked using glutaraldehyde. The decrease of framework in triple helix of gelatin in the presence of polysaccharide and/or the cross-linking agent increases until a total disappearance was showed by XRD, the disappearance of macroporous gelatin structure in the presence of additives has been confirmed by SEM and AFM. According to DSC analysis, glass transition temperature (Tg) increases and decreases as GTA and CMC were added, respectively. It was shown that swelling of macroporous structure in pseudophysiological mediums was more absorbent and used electrolytes exert an osmotic pressure or ionic strength inducing higher swelling. Also, it was found that diffusion mechanism is directly related to gelatin structure. On the other hand, the incorporation of CMC improves the flexibility of matrice.
author	ASMA,CHETOUANI MERIEM,ELKOLLI MAHMOUD,BOUNEKHEL DJAAFER,BENACHOUR
author_facet	ASMA,CHETOUANI MERIEM,ELKOLLI MAHMOUD,BOUNEKHEL DJAAFER,BENACHOUR
author_sort	ASMA,CHETOUANI
title	PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS
title_short	PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS
title_full	PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS
title_fullStr	PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS
title_full_unstemmed	PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS
title_sort	physicochemical characterization of gelatin-cmc composite edibles films from polyion-complex hydrogels
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100008
work_keys_str_mv	AT asmachetouani physicochemicalcharacterizationofgelatincmccompositeediblesfilmsfrompolyioncomplexhydrogels AT meriemelkolli physicochemicalcharacterizationofgelatincmccompositeediblesfilmsfrompolyioncomplexhydrogels AT mahmoudbounekhel physicochemicalcharacterizationofgelatincmccompositeediblesfilmsfrompolyioncomplexhydrogels AT djaaferbenachour physicochemicalcharacterizationofgelatincmccompositeediblesfilmsfrompolyioncomplexhydrogels
_version_	1718445510913687552

PHYSICOCHEMICAL CHARACTERIZATION OF GELATIN-CMC COMPOSITE EDIBLES FILMS FROM POLYION-COMPLEX HYDROGELS

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