Ion diffusion upon concentrations in open nanofluidic channels

Chen Ling Chang; John Guofeng Bai; Kyong Hoon Lee; Jae Hyun Chung; Yaling Liu; Wing K Liu

doi:10.1115/IMECE200742362

Ion diffusion upon concentrations in open nanofluidic channels

Chen Ling Chang, John Guofeng Bai, Kyong Hoon Lee, Jae Hyun Chung, Yaling Liu, Wing K Liu

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The ion flow in nanochannels is investigated by using nanochannels in an open configuration that allows the direct observation of fluid diffusion through an optical microscope. An "open nanochannel" is a channel with the top open to air such that fluidics can be introduced from both the entrance and the top of the channels. The experimental results showed that the diffusion length of the potassium chloride and phosphate buffer decreased with their concentration. The observed behaviors were analyzed by the contact angle variation due to the electrowetting phenomena involving the interaction between electrical double layer and counter-ions in the solution.

Original language	English (US)
Title of host publication	Micro and Nano Systems
Publisher	American Society of Mechanical Engineers (ASME)
Pages	913-918
Number of pages	6
Volume	11
ISBN (Electronic)	079184305X
DOIs	https://doi.org/10.1115/IMECE200742362
State	Published - Jan 1 2007
Event	ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, United States Duration: Nov 11 2007 → Nov 15 2007

Other

Other	ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
Country/Territory	United States
City	Seattle
Period	11/11/07 → 11/15/07

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/IMECE200742362

Cite this

@inproceedings{c9c50bc5ffac42499e88dcd2ee81ed7d,

title = "Ion diffusion upon concentrations in open nanofluidic channels",

abstract = "The ion flow in nanochannels is investigated by using nanochannels in an open configuration that allows the direct observation of fluid diffusion through an optical microscope. An {"}open nanochannel{"} is a channel with the top open to air such that fluidics can be introduced from both the entrance and the top of the channels. The experimental results showed that the diffusion length of the potassium chloride and phosphate buffer decreased with their concentration. The observed behaviors were analyzed by the contact angle variation due to the electrowetting phenomena involving the interaction between electrical double layer and counter-ions in the solution.",

author = "Chang, {Chen Ling} and Bai, {John Guofeng} and Lee, {Kyong Hoon} and Chung, {Jae Hyun} and Yaling Liu and Liu, {Wing K}",

year = "2007",

month = jan,

day = "1",

doi = "10.1115/IMECE200742362",

language = "English (US)",

volume = "11",

pages = "913--918",

booktitle = "Micro and Nano Systems",

publisher = "American Society of Mechanical Engineers (ASME)",

note = "ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 ; Conference date: 11-11-2007 Through 15-11-2007",

}

Chang, CL, Bai, JG, Lee, KH, Chung, JH, Liu, Y & Liu, WK 2007, Ion diffusion upon concentrations in open nanofluidic channels. in Micro and Nano Systems. vol. 11, American Society of Mechanical Engineers (ASME), pp. 913-918, ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007, Seattle, United States, 11/11/07. https://doi.org/10.1115/IMECE200742362

TY - GEN

T1 - Ion diffusion upon concentrations in open nanofluidic channels

AU - Chang, Chen Ling

AU - Bai, John Guofeng

AU - Lee, Kyong Hoon

AU - Chung, Jae Hyun

AU - Liu, Yaling

AU - Liu, Wing K

PY - 2007/1/1

Y1 - 2007/1/1

N2 - The ion flow in nanochannels is investigated by using nanochannels in an open configuration that allows the direct observation of fluid diffusion through an optical microscope. An "open nanochannel" is a channel with the top open to air such that fluidics can be introduced from both the entrance and the top of the channels. The experimental results showed that the diffusion length of the potassium chloride and phosphate buffer decreased with their concentration. The observed behaviors were analyzed by the contact angle variation due to the electrowetting phenomena involving the interaction between electrical double layer and counter-ions in the solution.

AB - The ion flow in nanochannels is investigated by using nanochannels in an open configuration that allows the direct observation of fluid diffusion through an optical microscope. An "open nanochannel" is a channel with the top open to air such that fluidics can be introduced from both the entrance and the top of the channels. The experimental results showed that the diffusion length of the potassium chloride and phosphate buffer decreased with their concentration. The observed behaviors were analyzed by the contact angle variation due to the electrowetting phenomena involving the interaction between electrical double layer and counter-ions in the solution.

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U2 - 10.1115/IMECE200742362

DO - 10.1115/IMECE200742362

M3 - Conference contribution

AN - SCOPUS:84928642696

VL - 11

SP - 913

EP - 918

BT - Micro and Nano Systems

PB - American Society of Mechanical Engineers (ASME)

T2 - ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007

Y2 - 11 November 2007 through 15 November 2007

ER -

Ion diffusion upon concentrations in open nanofluidic channels

Abstract

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