Sample concentration by asymmetry EOF flow in micro/nano channels with O2/H2O plasma treated channel surfaces

Ren-Quei Wu; Fan-Gang Tseng; Chung-Shi Yang; Ching-Chang Cheing

Sample concentration by asymmetry EOF flow in micro/nano channels with O2/H2O plasma treated channel surfaces

Ren-Quei Wu, Fan-Gang Tseng, Chung-Shi Yang, Ching-Chang Cheing

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

1 Citation (Scopus)

Abstract

Sample pre-concentration is an important step in many high-performance separation techniques, such as liquid chromatography or capillary electophoresis, which determines the detection sensitivity of separated samples. However, they either need particular microdevices or special surface treatment in local area, posing system fabrication/operation complexity. In this study, we employ simple and rapid surface plasma processes to create an asymmetry electroosmotic flow (EOF) in micro/nano channels. By this way, the sample can be concentrated into one side of the channel induced by the non-uniform zeta potential variation. We demonstrate that the concentrating ability for neurotransmitter (1μM Dopamine) in the modified asymmetry surface treated channel (500nm and 30 μ m channel depth) are 8.5 or 2.8 times larger than that in the channels with symmetrical surface treatment, respectively.

Original language	English
Title of host publication	2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
Pages	728-731
Publication status	Published - 2005
Externally published	Yes
Event	2005 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2005 - Anaheim, United States Duration: 8 May 2005 → 12 May 2005 https://briefs.techconnect.org/books/technical-proceedings-of-the-2005-nsti-nanotechnology-conference-and-trade-show-volume-3/

Conference

Conference	2005 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2005
Place	United States
City	Anaheim
Period	8/05/05 → 12/05/05
Internet address	https://briefs.techconnect.org/books/technical-proceedings-of-the-2005-nsti-nanotechnology-conference-and-trade-show-volume-3/

Research Keywords

Asymmetry electroosmotic flow
Nano channel
Plasma treatment
Sample concentration

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@inproceedings{b08dce9107d24f3f824c5bf6d63952dd,

title = "Sample concentration by asymmetry EOF flow in micro/nano channels with O2/H2O plasma treated channel surfaces",

abstract = "Sample pre-concentration is an important step in many high-performance separation techniques, such as liquid chromatography or capillary electophoresis, which determines the detection sensitivity of separated samples. However, they either need particular microdevices or special surface treatment in local area, posing system fabrication/operation complexity. In this study, we employ simple and rapid surface plasma processes to create an asymmetry electroosmotic flow (EOF) in micro/nano channels. By this way, the sample can be concentrated into one side of the channel induced by the non-uniform zeta potential variation. We demonstrate that the concentrating ability for neurotransmitter (1μM Dopamine) in the modified asymmetry surface treated channel (500nm and 30 μ m channel depth) are 8.5 or 2.8 times larger than that in the channels with symmetrical surface treatment, respectively.",

keywords = "Asymmetry electroosmotic flow, Nano channel, Plasma treatment, Sample concentration",

author = "Ren-Quei Wu and Fan-Gang Tseng and Chung-Shi Yang and Ching-Chang Cheing",

year = "2005",

language = "English",

isbn = "0976798506",

pages = "728--731",

booktitle = "2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings",

note = "2005 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2005 ; Conference date: 08-05-2005 Through 12-05-2005",

url = "https://briefs.techconnect.org/books/technical-proceedings-of-the-2005-nsti-nanotechnology-conference-and-trade-show-volume-3/",

}

Wu, R-Q, Tseng, F-G, Yang, C-S & Cheing, C-C 2005, Sample concentration by asymmetry EOF flow in micro/nano channels with O2/H2O plasma treated channel surfaces. in 2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings. pp. 728-731, 2005 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2005, Anaheim, California, United States, 8/05/05.

Sample concentration by asymmetry EOF flow in micro/nano channels with O2/H2O plasma treated channel surfaces. / Wu, Ren-Quei; Tseng, Fan-Gang; Yang, Chung-Shi et al.
2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings. 2005. p. 728-731.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Sample concentration by asymmetry EOF flow in micro/nano channels with O2/H2O plasma treated channel surfaces

AU - Wu, Ren-Quei

AU - Tseng, Fan-Gang

AU - Yang, Chung-Shi

AU - Cheing, Ching-Chang

PY - 2005

Y1 - 2005

N2 - Sample pre-concentration is an important step in many high-performance separation techniques, such as liquid chromatography or capillary electophoresis, which determines the detection sensitivity of separated samples. However, they either need particular microdevices or special surface treatment in local area, posing system fabrication/operation complexity. In this study, we employ simple and rapid surface plasma processes to create an asymmetry electroosmotic flow (EOF) in micro/nano channels. By this way, the sample can be concentrated into one side of the channel induced by the non-uniform zeta potential variation. We demonstrate that the concentrating ability for neurotransmitter (1μM Dopamine) in the modified asymmetry surface treated channel (500nm and 30 μ m channel depth) are 8.5 or 2.8 times larger than that in the channels with symmetrical surface treatment, respectively.

AB - Sample pre-concentration is an important step in many high-performance separation techniques, such as liquid chromatography or capillary electophoresis, which determines the detection sensitivity of separated samples. However, they either need particular microdevices or special surface treatment in local area, posing system fabrication/operation complexity. In this study, we employ simple and rapid surface plasma processes to create an asymmetry electroosmotic flow (EOF) in micro/nano channels. By this way, the sample can be concentrated into one side of the channel induced by the non-uniform zeta potential variation. We demonstrate that the concentrating ability for neurotransmitter (1μM Dopamine) in the modified asymmetry surface treated channel (500nm and 30 μ m channel depth) are 8.5 or 2.8 times larger than that in the channels with symmetrical surface treatment, respectively.

KW - Asymmetry electroosmotic flow

KW - Nano channel

KW - Plasma treatment

KW - Sample concentration

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M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 0976798506

SN - 9780976798507

SP - 728

EP - 731

BT - 2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings

T2 - 2005 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2005

Y2 - 8 May 2005 through 12 May 2005

ER -

Sample concentration by asymmetry EOF flow in micro/nano channels with O2/H2O plasma treated channel surfaces

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