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Modulating ion current rectification generating high energy output in a single glass conical nanopore channel by concentration gradient

Li-Xiang Zhang ,  Yu-Bin Zheng ,  Sheng-Lin Cai ,  Xiao-Hong Cao ,  Yao-Qun Li

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Citation:  Li-Xiang Zhang, Yu-Bin Zheng, Sheng-Lin Cai, Xiao-Hong Cao, Yao-Qun Li. Modulating ion current rectification generating high energy output in a single glass conical nanopore channel by concentration gradient[J]. Chinese Chemical Letters, 2015, 26(1): 43-46. doi: 10.1016/j.cclet.2014.08.001 shu

Modulating ion current rectification generating high energy output in a single glass conical nanopore channel by concentration gradient

    • 通讯作者: Yao-Qun Li,
  • 基金项目:

    We are grateful for the financial support from the National Natural Science Foundation of China (Nos. 21375111, 21127005,20975084) (Nos. 21375111, 21127005,20975084)

    the Ph.D. Programs Foundation of the Ministry of Education of China (No. 20110121110011). (No. 20110121110011)

摘要: Inspired by biological systems that have the inherent skill to generate considerable bioelectricity from the salt content in fluids with highly selective ion channels and pumps on cellmembranes, herein, a fully abiotic, single glass conical nanopores energy-harvesting is demonstrated. Ion current rectification (ICR) in negatively charged glass conical nanopores is shown to be controlled by the electrolyte concentration gradient depending on the direction of ion diffusion. The degree of ICR is enhanced with the increasing forward concentration difference. An unusual rectification inversion is observed when the concentration gradient is reversely applied. The maximum power output with the individual nanopore approaches 104 pW. This facile and cost-efficient energy-harvesting system has the potential to power tiny biomedical devices or construct future clean-energy recovery plants.

English

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  • 发布日期:  2014-08-15
  • 收稿日期:  2014-04-11
  • 网络出版日期:  2014-07-18
通讯作者: 陈斌, bchen63@163.com
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