Dual thermopile integrated microfluidic calorimeter for biochemical thermodynamics

B. S. Kwak, B. S. Kim, H. H. Cho, J. S. Park, H. I. Jung

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

This article presents a new design of a silicon-based microcalorimeter made with dual thermopiles and a microchannel. The dual thermopile was fabricated with chromium and copper using a microelectromechanical system (MEMS) technique, and the microchannel was made of PDMS using soft-lithography. Each thermopile consists of 26 thermocouple pairs and 50 μm wide electrodes. The total sensitivity of thermopile is 428 μV/K. The dual thermopile system enables the microcalorimeter to acquire reliable data in a rapid and convenient manner because it detects the reaction and reference temperatures simultaneously. This self-compensation allows our device to analyze a few microliters of sample solution without the need for a surrounding adiabatic vacuum.

Original languageEnglish
Pages (from-to)255-262
Number of pages8
JournalMicrofluidics and Nanofluidics
Volume5
Issue number2
DOIs
Publication statusPublished - 2008 Aug 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry

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