The mechanical, biological and surface properties of films, based on blends of soluble collagen and poly(vinyl alcohol), were investigated. Films prepared by casting were cross-linked by a dehydro-thermal treatment. The mechanical behaviour of the materials was studied by dynamic-mechanical thermal analysis. The biological properties of the films were evaluated by performing cytotoxicity and cytocompatibility in vitro tests. Surface characterization was carried out by X-ray electron spectroscopy. The results obtained indicate that these materials behave as two-phase systems and a remarkable enrichment of collagen in the surface with respect to the bulk was observed. Cytocompatibility tests show that the blending of the two polymers creates a better substrate for cell growth in comparison with pure components. The mechanical, biological and surface properties of films, based on blends of soluble collagen and poly(vinyl alcohol), were investigated. Films prepared by casting were cross-linked by a dehydro-thermal treatment. The mechanical behaviour of the materials was studied by dynamic-mechanical thermal analysis. The biological properties of the films were evaluated by performing cytotoxicity and cytocompatibility in vitro tests. Surface characterization was carried out by X-ray electron spectroscopy. The results obtained indicate that these materials behave as two-phase systems and a remarkable enrichment of collagen in the surface with respect to the bulk was observed. Cytocompatibility tests show that the blending of the two polymers creates a better substrate for cell growth in comparison with pure components.
Dehydro-Thermally Crosslinked Collagen-Poly(vinylalcohol) Blends: Mechanical, Biological and Surface Properties
POLLICINO, Antonino;
1996-01-01
Abstract
The mechanical, biological and surface properties of films, based on blends of soluble collagen and poly(vinyl alcohol), were investigated. Films prepared by casting were cross-linked by a dehydro-thermal treatment. The mechanical behaviour of the materials was studied by dynamic-mechanical thermal analysis. The biological properties of the films were evaluated by performing cytotoxicity and cytocompatibility in vitro tests. Surface characterization was carried out by X-ray electron spectroscopy. The results obtained indicate that these materials behave as two-phase systems and a remarkable enrichment of collagen in the surface with respect to the bulk was observed. Cytocompatibility tests show that the blending of the two polymers creates a better substrate for cell growth in comparison with pure components. The mechanical, biological and surface properties of films, based on blends of soluble collagen and poly(vinyl alcohol), were investigated. Films prepared by casting were cross-linked by a dehydro-thermal treatment. The mechanical behaviour of the materials was studied by dynamic-mechanical thermal analysis. The biological properties of the films were evaluated by performing cytotoxicity and cytocompatibility in vitro tests. Surface characterization was carried out by X-ray electron spectroscopy. The results obtained indicate that these materials behave as two-phase systems and a remarkable enrichment of collagen in the surface with respect to the bulk was observed. Cytocompatibility tests show that the blending of the two polymers creates a better substrate for cell growth in comparison with pure components.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
