Biodegradation kinetics of poly(3-hydroxybutyrate)-based biopolymer systems

被引：32

作者：

Boskhomdzhiev A.P. ^{[1
]}

Bonartsev A.P. ^{[1
,2
]}

Makhina T.K. ^{[1
]}

Myshkina V.L. ^{[1
]}

Ivanov E.A. ^{[1
]}

Bagrov D.V. ^{[2
]}

Filatova E.V. ^{[1
]}

Iordanskii A.L. ^{[1
,3
]}

Bonartseva G.A. ^{[1
]}

机构：

[1] A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow 117071

[2] Faculty of Biology, M. V. Lomonosov Moscow State University, Moscow

[3] N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow

来源：

Biochemistry (Moscow) Supplement Series B: Biomedical Chemistry | 2010年 / 4卷 / 2期

关键词：

biodegradation; biopolymer systems; poly(3-hydroxybutyrate) (PHB); poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV); polyhydroxyalkanoates (PHA); polylactic acid (PLA);

D O I：

10.1134/S1990750810020083

中图分类号：

学科分类号：

摘要：

The aim of this study was to evaluate and to compare the long-term kinetics curves of biodegradation of poly(3-hydroxybutyrate) (PHB), its copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate), and a PHB/polylactic acid composite. The total weight loss and the change of average viscosity molecular weight were used as the parameters reflecting the biodegradation degree. The rate of biodegradation was analyzed in vitro in the presence of lipase and in vivo after film implantation in animal tissues. The morphology of the PHB film surface was studied by the atomic force microscopy technique. It was shown that PHB biodegradation involves both polymer hydrolysis and its enzymatic biodegradation. The results obtained in this study can be used for the development of various PHB-based medical devices. © 2010 Pleiades Publishing, Ltd.

引用

页码：177 / 183

页数：6

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