title: On-chip thermal calibration with 8 CB liquid crystal of micro-thermal device.
abstract: 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.
authors.affiliation: Institute of Industrial Science, University of Tokyo, 4-6-1, Komaba, Tokyo, Japan. gillot@iis.u-tokyo.ac.jp
authors.forename: Frédéric
authors.initials: F
authors.lastname: Gillot
authors.forename: Fabrice Olivier
authors.initials: FO
authors.lastname: Morin
authors.forename: Hideyuki F
authors.initials: HF
authors.lastname: Arata
authors.forename: Régis
authors.initials: R
authors.lastname: Guégan
authors.forename: Hajime
authors.initials: H
authors.lastname: Tanaka
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Fujita
mesh_terms: D002138:Calibration; D044085:Microfluidics / Q000295:instrumentation*; D013696:Temperature