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Performance Characterization of a PDMS-Based Microfluidic Device for Detecting Continuous Distributed Loads

[+] Author Affiliations
Peng Cheng, Wenting Gu, Jiayue Shen, Arindam Ghosh, Ali Beskok, Zhili Hao

Old Dominion University, Norfolk, VA

Paper No. IMECE2013-63709, pp. V010T11A063; 8 pages
doi:10.1115/IMECE2013-63709
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 10: Micro- and Nano-Systems Engineering and Packaging
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5639-0
  • Copyright © 2013 by ASME

abstract

In this paper, the performance of a PDMS-based microfluidic device is thoroughly characterized for detecting continuous static and dynamic loads. This device comprises of a single PDMS rectangular microstructure and a set of electrolyte-enabled distributed transducers. It is fabricated by a standard fabrication process well developed for PDMS-based microfluidic devices. One potential application of this device is to measure spatially-varying mechanical properties of heterogeneous soft materials, through quasi-static, stress relaxation and dynamic mechanical analysis (DMA) tests. Thus, the response of this device to three types of inputs: static, step and sinusoidal, is examined with a custom experimental setup. For the first time, the capability of using a polymer-based microfluidic device to detect sinusoidal inputs is reported. The characterized results demonstrate the potential of using this device to measure soft materials.

Copyright © 2013 by ASME

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