Fully disposable and optically transparent microfluidic viscometer based on electrofluidic pressure sensor

Tse-Ang Lee, Wei-Hao Liao, Y. Tung
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引用次数: 1

Abstract

This paper reports a microfluidic viscometer with an embedded pressure sensor constructed using electrofluidic circuits, which are electrical circuits constructed by ionic liquid-filled microfluidic channels. The electrofluidic circuit provides a great pressure-sensing scheme with great long-term and thermal stability. The viscosity of the tested fluidic sample is estimated by its flow resistance, which is a function of pressure drop and flow rate, and the geometry of the microfluidic channel. The viscometer can be exploited to measure viscosity of either Newtonian or non-Newtonian power-law fluid under various temperatures. The developed sensor-integrated microfluidic viscometer is made of polydimethylsiloxane (PDMS) with transparent electrofluidic circuit makes it feasible to real-time monitor samples under tests. In addition, the entire device is fully disposable to prevent cross contamination between samples, which is desired for various chemical and biomedical applications.
基于电流体压力传感器的全一次性光学透明微流体粘度计
本文报道了一种采用电流体电路构成的嵌入式压力传感器微流控粘度计,电流体电路是由充满离子液体的微流体通道构成的电路。电流体电路提供了一种具有长期和热稳定性的压力传感方案。被测流体样品的粘度由其流动阻力(压降和流速的函数)和微流体通道的几何形状来估计。粘度计可用于测量牛顿或非牛顿幂律流体在不同温度下的粘度。所研制的传感器集成微流控粘度计采用聚二甲基硅氧烷(PDMS)制成,具有透明的电流电路,可以实时监测被测样品。此外,整个装置是完全一次性的,以防止样品之间的交叉污染,这是各种化学和生物医学应用所需要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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