Integrated electrical sensor arrays in microfluidic networks

M. C. Cole, P. J.A. Kenis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The design, fabrication, and characterization of a novel microfluidic sensing architecture are presented. The system allows for the position of a fluidic element to be monitored throughout a complex two-dimensional microfluidic network. Sensors consisting of small electrical components (resistors, capacitors, or conduction gaps) are placed within an interconnected fluidic network and are addressed using a multiplexing approach that allows an array of m×n sensors to be supported by only m+n+l electrical contacts. The multiplexing relies on the fact that each sensing element is connected to two electrical leads, and each electrical lead is connected to multiple sensing elements. Herein, the basic principles of electrical resistive sensors are discussed and typical detection traces are presented. Finally, as a proof of the multiplexing concept, a 4×4 array of resistive sensors is used to monitor the passage of a discrete fluid plug through a microfluidic network. copyright The Electrochemical Society.

Original languageEnglish (US)
Title of host publicationChemical Sensors 7 -and- MEMS/NEMS 7
PublisherElectrochemical Society Inc.
Pages427-435
Number of pages9
Edition10
ISBN (Electronic)1566775108
DOIs
StatePublished - 2006
EventChemical Sensors 7 -and- MEMS/NEMS 7 - 210th Electrochemical Society Meeting - Cancun, Mexico
Duration: Oct 29 2006Nov 3 2006

Publication series

NameECS Transactions
Number10
Volume3
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherChemical Sensors 7 -and- MEMS/NEMS 7 - 210th Electrochemical Society Meeting
Country/TerritoryMexico
CityCancun
Period10/29/0611/3/06

ASJC Scopus subject areas

  • General Engineering

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