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National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 生醫工程研究所 > 依資料類型分類 > 期刊論文 >  Centrifugal and electric field forces dual-pumping CD-like microfluidic platform for biomedical separation

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/131636

標題: Centrifugal and electric field forces dual-pumping CD-like microfluidic platform for biomedical separation
作者: Wang, G.J.;Hsu, W.H.;Chang, Y.Z.;Yang, H.H.
楊錫杭;王國禎
關鍵字: CD-like microfluidic separation system;dual-pumping device;sputtering;on metal mask method;capillary-electrophoresis chips
日期: 2004
Issue Date: 2012-12-07 16:29:47 (UTC+8)
關連: Biomedical Microdevices, Volume 6, Issue 1, Page(s) 47-53.
摘要: In this article, we propose a versatile CD-like multichannel electrophoresis-based biomedical separation system that is driven by the interactive forces between the centrifugal force and the electric field force. The centrifugal force control of this system is realized through the velocity control of a DC servo motor, while the electric field is governed through the concentric conducting circuits, which are suitably designed and fabricated by sputtering on metal mask method, and can be adjusted to provide multi-stage voltages. Experimental results demonstrate that the electro-osmotic flow (EOF) effect can be effectively reduced when the electric field force and centrifugal force are in the opposite direction. Benefits from this are that the electrophoresis separation time can be prolonged and the length of the microfluidic channels can be shortened; therefore, more effective separation efficiency can be obtained. Moreover, other advantages, such as lower joule-heat generation, low-chemistry reaction, and no variation on the ion concentration during processes, make this biomedical separation system more useful.
Relation: Biomedical Microdevices
Appears in Collections:[依資料類型分類] 期刊論文
[依教師分類] 王國禎
[依教師分類] 楊錫杭
[依教師分類] 楊錫杭
[依教師分類] 王國禎

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