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Role of green tea polyphenol crosslinking in alleviating ultraviolet‐radiation effects on collagen
Author(s) -
Fathima Nishtar Nishad,
Ansari Thamimul,
Rao Jonnalagadda Raghava,
Nair Balachandran Unni
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26973
Subject(s) - acacia mearnsii , irradiation , photodegradation , polyphenol , catechin , wattle (construction) , chemistry , biomaterial , ultraviolet , biophysics , materials science , nuclear chemistry , biochemistry , botany , organic chemistry , photocatalysis , antioxidant , composite material , biology , physics , optoelectronics , nuclear physics , catalysis
The widespread application of collagen warrants studies on the effects of ultraviolet (UV) radiation on stabilized collagen. The negative impact of UV radiation is well known. Because collagen is used as a biomaterial in various biomedical applications, knowing the effects of UV irradiation on stabilized collagen has become essential. In this study, the effects of UV irradiation on collagen stabilized with green tea polyphenols, that is, Acacia mearnsii (wattle), and catechin has been studied. The fluorescence intensity has been found to decrease with irradiation for native and wattle‐treated collagen. Spectral studies have indicated that the photodegradation products increase after irradiation for native collagen, whereas collagen treated with catechin or A. mearnsii exhibits different responses depending on the duration of the irradiation. The duration of the irradiation has a significant influence on polyphenol‐treated collagen. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007