Moisture sensor using quartz crystal coated with bacteriorhodopsin

Bacteriorhodopsin(BR) has been reported to adsorb or desorb moisture reversibly. The application of a quartz crystal coated with BR as a moisture sensor was investigated. Results show that a quartz crystal coated with BR is capable of monitoring moisture concentration. A near-linear relation of the...

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Bibliographic Details
Published inBunseki kagaku Vol. 43; no. 12; pp. 1189 - 1192
Main Authors KATOH, Hiromasa, TANAKA, Masuko
Format Journal Article
LanguageEnglish
Published Tokyo Japan Science and Technology Agency 1994
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Summary:Bacteriorhodopsin(BR) has been reported to adsorb or desorb moisture reversibly. The application of a quartz crystal coated with BR as a moisture sensor was investigated. Results show that a quartz crystal coated with BR is capable of monitoring moisture concentration. A near-linear relation of the change in frequency with moisture was obtained in the range from 0.1 v/v% to 2 v/v%. The performance as a moisture sensor has been maintained over more than 3 months. The performance is unchanged even if exposed to an environment of 100°C for ten hours.
ISSN:0525-1931
DOI:10.2116/bunsekikagaku.43.1189