Synthesis, characterization, and antibacterial activity of chitosan/TiO2 nanocomposite against Xanthomonas oryzae pv. oryzae

文献类型： 外文期刊

第一作者： Li, Bin

作者： Li, Bin;Zhang, Yang;Yang, Yingzi;Qiu, Wen;Wang, Xiaoxuan;Liu, Baoping;Wang, Yanli;Sun, Guochang

作者机构：

关键词： Antibacterial activity;Characterization;Chitosan;TiO2;X. oryzae pv. oryzae;Chitosan/TiO2 nanocomposite

期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：9.381； 五年影响因子：8.678 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： This present study deals with synthesis, characterization and antibacterial activity of chitosan/TiO2 nanocomposites. Results indicated that chitosan/TiO2 nanocomposite at the ratio of 1:5 showed the strongest inhibition in growth of rice bacterial pathogen Xanthomonas oryzae pv. oryzae (Xoo). Furthermore, the antibacterial activity of chitosan/TiO2 nanocomposite against Xoo is significantly higher than that of the two individual components under both light and dark conditions. Regardless of the presence or absence of extracellular polymeric substances, chitosan/TiO2 nanocomposite showed strong antibacterial activity, however, the absence increased the sensitivity of Xoo to chitosan/TiO2 nanocomposite. In addition, the surface morphology and physicochemical properties of chitosan/TiO2 nanocomposite is different from the two individual components based on scanning electron microscopic observation, fourier transform infrared spectra, and X-ray diffraction pattern, as well as elemental and thermo gravimetric analysis. Overall, this study indicated that this synthesized chitosan/TiO2 nanocomposite is promising to be developed as a new antibacterial material. (C) 2016 Elsevier Ltd. All rights reserved.

分类号： O629`Q53

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