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International Journal of Nonlinear Sciences and Numerical Simulation

Editor-in-Chief: Birnir, Björn

Editorial Board: Armbruster, Dieter / Bessaih, Hakima / Chou, Tom / Grauer, Rainer / Marzocchella, Antonio / Rangarajan, Govindan / Trivisa, Konstantina / Weikard, Rudi

8 Issues per year


IMPACT FACTOR 2016: 0.890

CiteScore 2017: 1.41

SCImago Journal Rank (SJR) 2017: 0.382
Source Normalized Impact per Paper (SNIP) 2017: 0.636

Mathematical Citation Quotient (MCQ) 2016: 0.07

Online
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2191-0294
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Volume 13, Issue 5

Issues

Highly Non-linear Microfluidic Resistor Elements for Flow Rate-dependent Addressing of Microchannels

Luke Rajah
  • University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, United Kingdom
  • Other articles by this author:
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/ Duncan A. White
  • University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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/ Tuomas P. J. Knowles
  • Corresponding author
  • University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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Published Online: 2012-09-22 | DOI: https://doi.org/10.1515/ijnsns-2012-0401

Abstract

We have developed a microfluidic resistor element exhibiting a hydrodynamic resistance that is strongly dependent on the pressure at the inlet of the device. Such an element can be used to construct microfluidic circuits that possess a highly non-linear dependence between the pressure and the flow rate, in contrast to conventional microfluidic resistors. We show that this effect can be exploited to create valves which do not require an external control line, but are actuated directly through the pressure difference between the single inlet and outlet of the device. Furthermore, we show that the flux to each branch of the circuit controlled by the valve can be fixed for high or low flow rates by modifying the fixed resistances internal to the device.

Keywords: microfluidics; flow control; valve

PACS®(2010): 83.50.Ha; 47.60.Dx; 47.85.L

About the article

Received: 2011-11-04

Accepted: 2012-03-08

Published Online: 2012-09-22

Published in Print: 2012-09-19


Citation Information: International Journal of Nonlinear Sciences and Numerical Simulation, Volume 13, Issue 5, Pages 319–323, ISSN (Online) 2191-0294, ISSN (Print) 1565-1339, DOI: https://doi.org/10.1515/ijnsns-2012-0401.

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