期刊
LAB ON A CHIP
卷 8, 期 10, 页码 1671-1675出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b804256j
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资金
- NSF [CTS 0404124, DMR 0611616]
- Center for Biomedical Engineering at UNM
- W. M. Keck Foundation
This article presents an analysis of the electric field distribution and current transport in fluidic nanochannels fabricated by etching of a silicon chip. The channels were overcoated by a SiO2 layer. The analysis accounts for the current leaks across the SiO2 layer into the channel walls. Suitable voltage biasing of the Si substrate allows eliminating of the leaks or using them to modify the potential distribution of the fluid. Shaping the potential in the fluid can be utilized for solute focusing and separations in fluidic nanochannels.
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