On-chip thermal calibration with 8 CB liquid crystal of micro-thermal device

Frédéric Gillot*, Fabrice Olivier Morin, Hideyuki F. Arata, Régis Guégan, Hajime Tanaka, Hiroyuki Fujita

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A temperature sensor integrated on a micro-device for biological experiments requires affordable, rapid and easy thermal calibration. However, such calibration cannot usually be done directly under the microscope, a fact that impedes biological experiments. We present in this paper an inexpensive and rapid method to achieve thermal calibration directly under the microscope. It is based on the use of a thermotropic liquid crystal: the 4-n-octyl-4- cyanobiphenyl (8 CB) exhibiting an isothermal phase change at 313 K that can be monitored optically. We demonstrate the advantages of this method by calibrating the temperature sensor integrated onto a micro-device.

Original languageEnglish
Pages (from-to)1600-1602
Number of pages3
JournalLab on a Chip
Issue number11
Publication statusPublished - 2007
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Chemistry(all)
  • Biomedical Engineering


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