RELATION BETWEEN THE PHYSICOCHEMICAL CHARACTERISTICS OF COLLAGEN AND ITS INTERACTIONS WITH CHITOSAN .1.

被引：123

作者：

TARAVEL, MN

DOMARD, A

机构：

[1] UNIV LYON 1, ETUD MAT PLAST & BIOMAT,CNRS,URA 507, 43 BLVD 11 NOVEMBRE 1918, F-69622 VILLEURBANNE, FRANCE

[2] COLETICA, F-69007 LYON, FRANCE

来源：

BIOMATERIALS | 1993年 / 14卷 / 12期

关键词：

CHITOSAN; COLLAGEN; SPECTROSCOPY; CHROMATOGRAPHY;

D O I：

10.1016/0142-9612(93)90135-O

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The interaction between bovine atelocollagen and a high molecular weight fully deacetylated chitosan has been studied. Considering the apparent mass of an anionic equivalent of collagen and the results of various techniques (potentiometry, conductometry and IR spectroscopy), a purely electrostatic mechanism is demonstrated. The role of charge density and chain length of collagen chains is discussed, and although the interaction is weak and hindered by gel formation in collagen solutions, a polyanion-polycation complex is obtained. Circular dichroism spectroscopy experiments show an organization in the solid state of the complex which is quite different to those of collagen and chitosan.

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页码：930 / 938

页数：9

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