The influence of UV-irradiation on chitosan modified by the tannic acid addition

被引：55

作者：

Sionkowska, A. ^{[1
]}

Kaczmarek, B. ^{[1
]}

Gnatowska, M. ^{[1
]}

Kowalonek, J. ^{[1
]}

机构：

[1] Nicholas Copernicus Univ, Fac Chem, Dept Chem Biomat & Cosmet, PL-87100 Torun, Poland

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 2015年 / 148卷

关键词：

Chitosan; Tannic acid; Biomaterials; UV-irradiation; ULTRAVIOLET-LIGHT; FILMS; COLLAGEN; ADSORPTION; BIOMATERIALS; COMPOSITE; SCAFFOLDS; MIXTURES; RELEASE; BLENDS;

D O I：

10.1016/j.jphotobiol.2015.03.028

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The influence of UV-irradiation with the wavelength 254 nm on the properties of chitosan modified by the tannic acid addition was studied. Tannic acid was added to chitosan solution in different weight ratios and after solvent evaporation thin films were formed. The properties of the films such as thermal stability, Young modulus, ultimate tensile strength, moisture content, swelling behavior before and after UV-irradiation were measured and compared. Moreover, the surface properties were studied by contact angle measurements and by the use of atomic force microscopy. The results showed that UV-irradiation caused both, the degradation of the specimen and its cross-linking. The surface of the films made of chitosan modified by the addition of tannic acid was altered by UV-irradiation. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：333 / 339

页数：7

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