C-coordinated O-carboxymethyl chitosan metal complexes: Synthesis, characterization and antifungal efficacy

doi:10.1016/j.ijbiomac.2017.07.176

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	C-coordinated O-carboxymethyl chitosan metal complexes: Synthesis, characterization and antifungal efficacy
	Liu, Weixiang 1,2; Qin, Yukun 1; Liu, Song 1; Xing, Ronge1 ; Yu, Huahua1 ; Chen, Xiaolin 1; Li, Kecheng 1; Li, Pengcheng1
	2018
发表期刊	INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷号	106 页码:68-77
文章类型	Article
摘要	A novel type of O-carboxymethyl chitosan Schiff bases (O-CSPX) was synthesized via a condensation reaction. After the coordination reaction of cupric ions, zinc ions and nickel ions, metal complexes (O-CSPX-M) were achieved. The theoretical structure of O-CSPX-M calculated by Gaussian 09 reveals that the copper ions and nickel ions underwent dsp(2) hybridization, the zinc ions underwent spa hybridization, and they all coordinated by the carbon atom in the p-pi conjugate group. Then, the structures were confirmed by FT-IR, H-1 NMR, CP-MAS C-13 NMR, elemental analysis, DSC and XRD. The antifungal properties of O-CSPX-M against Phytophthora capsici (P. capsici), Gibberella zeae (G. zeae), Fusarium oxysporum (F. oxysporum) and Botrytis cinerea (B. cinerea) were evaluated at concentrations ranging from 0.05 mg/mL to 0.40 mg/mL. The experiments indicated that the derivatives have significantly enhanced antifungal activity after metal ions complexation compared with the original chitosan. Moreover, it was shown that 0.20 mg/mL of O-CSPX-Cu can 100% inhibit the growth of P. capsici and 0.20 mg/mL of O-CSPX-Ni can 87.5% inhibit the growth of B. cinerea. In addition, the phytotoxicity assay and cell viability assay were also evaluated. The experimental results may provide a novel direction for the development of metal fungicides. (C) 2017 Published by Elsevier B.V.
关键词	Coordination Chitosan Metal Complex Antifungal
DOI	10.1016/j.ijbiomac.2017.07.176
收录类别	SCI
语种	英语
WOS记录号	WOS:000417661600008
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/154316
专题	实验海洋生物学重点实验室海洋生物技术研发中心海洋环境工程技术研究发展中心
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	实验海洋生物学重点实验室
推荐引用方式 GB/T 7714	Liu, Weixiang,Qin, Yukun,Liu, Song,et al. C-coordinated O-carboxymethyl chitosan metal complexes: Synthesis, characterization and antifungal efficacy[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2018,106:68-77.
APA	Liu, Weixiang.,Qin, Yukun.,Liu, Song.,Xing, Ronge.,Yu, Huahua.,...&Li, Pengcheng.(2018).C-coordinated O-carboxymethyl chitosan metal complexes: Synthesis, characterization and antifungal efficacy.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,106,68-77.
MLA	Liu, Weixiang,et al."C-coordinated O-carboxymethyl chitosan metal complexes: Synthesis, characterization and antifungal efficacy".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 106(2018):68-77.

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