期刊
出版社
SPRINGER
DOI: 10.1007/s00542-013-1887-8
关键词
-
类别
资金
- National High Technology Research and Development Program 863 [2012AA040406]
In this paper, we present a new approach for ion-enrichment and ion-depletion effect (IEID) in micro-nanofluidic chips without external power source. The method utilizes different reducibility of various electrodes in the weak oxidizing solution to generate the electrochemical potential and then induce IEID at a micro-nano junction. The results show that the average gray values of the micro-nano junction based on Al-Pt, Fe-Pt, and Cu-Pt electrodes increase from 14.7 to 40.2, 27.1, 15.0 after 20 s, and electric currents for Al-Pt, Fe-Pt, and Cu-Pt electrodes are 5.0, 2.9 and 0 nA respectively. Metal cations generating from oxidation-reduction reaction and electroosmotic convection flow are evaluated and their influences to IEID can be neglected in this case. The IEID method based on the electrochemical potential is power-free and weak flow convective that will be beneficial to the integrity of micro-nanofluidic chips and stability of IEID.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据