| Synthesis, characterization and antifungal efficacy of C-coordinated O-carboxymethyl chitosan Cu(II) complexes | |
Liu, Weixiang1,2; Qin, Yukun1; Liu, Song1; Xing, Ronge1 ; Yu, Huahua1; Chen, Xiaolin1; Li, Kecheng1; Li, Pengcheng1
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| 2017-03-15 | |
| 发表期刊 | CARBOHYDRATE POLYMERS
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| 卷号 | 160页码:97-105 |
| 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, Cu(II) complexes (O-CSPX-Cu) were achieved. The theoretical structure of O-CSPX-Cu calculated by Gaussian 09 reveals that the copper ions underwent dsp(2) hybridization, coordinated by the carbon atom in the p-pi conjugate group and the oxygen atoms in the acetate ion. 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-Cu against Phytophthora capsici (P. capsici), Gibberella zeae (G. zeae) and Glomerella cingulata (G. cingulata) were evaluated at concentrations ranging from 0.05 mg/mL to 0.20 mg/mL. The experiments indicated that the derivatives have significantly enhanced antifungal activity after copper ion complexation compared with the original chitosan. Moreover, it was shown that 0.20 mg/mL of O-CSP3-Cu and O-CSP4-Cu can 100% inhibit the growth of P. capsici. The experimental results reveal that the antifungal efficiency is related to the space steric hindrance on the benzene ring, which may provide a novel direction for the development of copper fungicides. (C) 2016 Elsevier Ltd. All rights reserved. |
| 关键词 | Coordination Chitosan Copper Complex Antifungal |
| DOI | 10.1016/j.carbpol.2016.12.040 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000393246800012 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/136348 |
| 专题 | 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. Synthesis, characterization and antifungal efficacy of C-coordinated O-carboxymethyl chitosan Cu(II) complexes[J]. CARBOHYDRATE POLYMERS,2017,160:97-105. |
| APA | Liu, Weixiang.,Qin, Yukun.,Liu, Song.,Xing, Ronge.,Yu, Huahua.,...&Li, Pengcheng.(2017).Synthesis, characterization and antifungal efficacy of C-coordinated O-carboxymethyl chitosan Cu(II) complexes.CARBOHYDRATE POLYMERS,160,97-105. |
| MLA | Liu, Weixiang,et al."Synthesis, characterization and antifungal efficacy of C-coordinated O-carboxymethyl chitosan Cu(II) complexes".CARBOHYDRATE POLYMERS 160(2017):97-105. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Synthesis, character（1787KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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