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C-coordinated O-carboxymethyl chitosan metal complexes: Synthesis, characterization and antifungal efficacy
Liu, Weixiang1,2; Qin, Yukun1; Liu, Song1; Xing, Ronge1; Yu, Huahua1; Chen, Xiaolin1; Li, Kecheng1; 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
DOI10.1016/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:3[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
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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