A novel polydimethylsiloxane microfluidic system including thermopneumatic-actuated micropump and Paraffin-actuated microvalve
A novel polydimethylsiloxane microfluidic system including thermopneumatic-actuated micropump and Paraffin-actuated microvalve
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DOI：
10.1016/j.sna.2007.04.056
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发表时间：
2007-09-12
影响因子：
4.6
通讯作者：
Kim, Yong-Sang
中科院分区：
文献类型：
--
作者：
Yoo, Jong-Chul;Choi, Y. J.;Kim, Yong-Sang
为了精确控制微全分析系统和芯片实验室中的流体流动，提出了一种新型的微流体系统，该系统使用微阀和微泵，它们易于集成在同一基板上。该系统是通过聚二甲基硅氧烷（PDMS）-玻璃芯片和氧化铟锡加热器实现的。本文提出了一种新型的微流体系统，包括一个热膨胀驱动的微泵和石蜡驱动的微阀。在占空比为7%和频率为2 Hz时观察到的最大泵浦速率约为1.05 μ l/min，在500 mW的固定功率下测量。对于通道宽度和深度分别为400和140 μ m的微型阀，测得截止流量时的功率约为300 mW。(c)2007 Elsevier B. V.保留所有权利。
A novel microfluidic system is presented using microvalves and a micropump, which are easily integrated on the same substrate, in order to accurately control the fluid flows in a micrototal analysis system and lab-on-a-chip. The system is realized by means of a polydimethylsilxane (PDMS)-glass chip and an indium tin oxide heater. This paper presents a novel microfluidic system including a thermopneumatic-actuated micropump and Paraffin-actuated microvalve. The maximum pumping rate of approximately 1.05 mu l/min is observed at the duty ratio of 7% and frequency of 2 Hz, measured at a fixed power of 500 mW. The power at flow cut-off is measured at approximately 300 mW for the microvalve of which channel width and depth are 400 and 140 mu m, respectively. (c) 2007 Elsevier B.V. All rights reserved.