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Takayama, Shuichi
Cell and Microfluidics Lab
Research Interests
  • Bio-MEMS and Microfluidics

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Analyzing threshold pressure limitations in microfluidic transistors for self-regulated microfluidic circuits

Cited 4 times inthomson ciCited 2 times inthomson ci
Title
Analyzing threshold pressure limitations in microfluidic transistors for self-regulated microfluidic circuits
Author
Kim, Sung-JinYokokawa, RyujiTakayama, Shuichi
Keywords
Circuit designs; Electro-hydraulics; Electronic transistors; Micro-fluidic devices; Microfluidic circuit; Negative values; Threshold pressures
Issue Date
201212
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.101, no.23, pp.1 - 4
Abstract
This paper reveals a critical limitation in the electro-hydraulic analogy between a microfluidic membrane-valve (mu MV) and an electronic transistor. Unlike typical transistors that have similar on and off threshold voltages, in hydraulic mu MVs, the threshold pressures for opening and closing are significantly different and can change, even for the same mu MVs depending on overall circuit design and operation conditions. We explain, in particular, how the negative values of the closing threshold pressures significantly constrain operation of even simple hydraulic mu MV circuits such as autonomously switching two-valve microfluidic oscillators. These understandings have significant implications in designing self-regulated microfluidic devices
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DOI
http://dx.doi.org/10.1063/1.4769985
ISSN
0003-6951
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SLS_Journal Papers
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