Computational fluid dynamic model and dimensional analysis of diffusion, convection and migration processes in electrochemical sensors

D. Barak-Shinar, M. Rosenfeld, S. Abboud

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Electrochemical amperometric transducers monitor the electric current through the electrochemical cell and measure the concentration of biological or chemical available species. Experimental work in the field of electrochemical biosensors is extremely interesting, yet the support of these results by theoretical modeling is not well investigated. Using theoretical modeling to understand the physical complex phenomena seems to be challenging and might have significant implications on the optimal design of electrochemical sensors. The present study presents a unique approach for investigating the three processes of mass transfer (diffusion, convection and migration) in the vicinity of an electrochemical sensor and the adjacent layer of the electrode. A 3-D model of the electrochemical cylindrical flow cell with computational fluid dynamic simulations of time dependent diffusion, convection and migration are used. The representation of the physical phenomena by the numerical models makes it possible to predict the time-dependent behavior of the system.

Original languageEnglish
Title of host publicationTRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1566-1569
Number of pages4
ISBN (Electronic)0780377311, 9780780377318
DOIs
StatePublished - 2003
Event12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers - Boston, United States
Duration: 8 Jun 200312 Jun 2003

Publication series

NameTRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Volume2

Conference

Conference12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers
Country/TerritoryUnited States
CityBoston
Period8/06/0312/06/03

Keywords

  • Biological system modeling
  • Biosensors
  • Cells (biology)
  • Chemical and biological sensors
  • Chemical transducers
  • Computational fluid dynamics
  • Computational modeling
  • Current
  • Monitoring
  • Sensor phenomena and characterization

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