Volume 133, Issue 25
Article

Microwave-assisted synthesis of chitosan biguanidine hydrochloride and its antioxidant activity in vitro

Qianwen Liu

Qianwen Liu

Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering, Tianjin University, Tianjin, 300072 People's Republic of China

Research Institute of Advanced Polymer, Tianjin University, Tianjin, 300072 People's Republic of China

Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072 People's Republic of China

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Yuan Li

Yuan Li

Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering, Tianjin University, Tianjin, 300072 People's Republic of China

Research Institute of Advanced Polymer, Tianjin University, Tianjin, 300072 People's Republic of China

Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072 People's Republic of China

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Xin Jin

Xin Jin

Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering, Tianjin University, Tianjin, 300072 People's Republic of China

Research Institute of Advanced Polymer, Tianjin University, Tianjin, 300072 People's Republic of China

Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072 People's Republic of China

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Qin Peng

Qin Peng

Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering, Tianjin University, Tianjin, 300072 People's Republic of China

Research Institute of Advanced Polymer, Tianjin University, Tianjin, 300072 People's Republic of China

Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072 People's Republic of China

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Xiaofei Liu

Corresponding Author

Xiaofei Liu

Department of Polymer Materials Science and Engineering, College of Materials Science and Engineering, Tianjin University, Tianjin, 300072 People's Republic of China

Research Institute of Advanced Polymer, Tianjin University, Tianjin, 300072 People's Republic of China

Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072 People's Republic of China

Correspondence to: X. F. Liu (E-mail: [email protected])Search for more papers by this author
Yuntang Wu

Yuntang Wu

Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin, 300070 People's Republic of China

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First published: 17 March 2016
Citations: 8

ABSTRACT

Chitosan biguanidine hydrochloride (CSGH) was synthesized by guanidinylation of chitosan hydrochloride (CSH) under microwave irradiation and characterized by Fourier transform infrared spectroscopy, gel permeation chromatography, and element analysis. The antioxidant activity of CSGH was evaluated by both chemical and cellular methods. The results showed that CSGH was better than CSH but slightly inferior to ascorbic acid (Vc) for scavenging 2,2-diphenyl-1-picryl-hydrazyl (DPPH) free radicals, and the DPPH• scavenging ability of CSGH was dose-dependent. However, cell experiments indicated CSGH had a superior repairing effect on oxidatively damaged cells. The intervention of CSGH could excellently recover the cell morphology, decrease the level of malondialdehyde, and enhance the activity of superoxide dismutase and glutathione peroxidase. CSGH could be a potential antioxidant reagent, and its antioxidant activity was reflected not only in scavenging the free radicals but also in regulating the oxidation/antioxidation balance of damaged cells. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43570.

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