Sensing Legionella by photogate‐type fluorescence sensor Application to Legionella dumoffii

Abstract This work describes the way of sensing bacteria, Legionella by photogate‐type fluorescence sensor. Photoirradiation time dependences of L. dumoffii with the UV‐photointensity as a parameter was obtained by the optical sensor. The photocurrents obtained by the sensor decreased depending on t...

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Bibliographic Details
Published inElectronics and communications in Japan Vol. 103; no. 11-12; pp. 83 - 89
Main Authors Tanaka, Sawako, Choi, Young Joon, Ishida, Makoto, Sawada, Kazuaki, Ishii, Hiromu, Machida, Katsuyuki, Nikaido, Yasuhiko, Saito, Mitsumasa, Yoshida, Shin‐ichi
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc 01.12.2020
Subjects
Decay rate
Fluorescence
Luminous intensity
Optical measuring instruments
Photochemical reactions
Photoelectric effect
Photoelectric emission
Sensors
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Summary:Abstract This work describes the way of sensing bacteria, Legionella by photogate‐type fluorescence sensor. Photoirradiation time dependences of L. dumoffii with the UV‐photointensity as a parameter was obtained by the optical sensor. The photocurrents obtained by the sensor decreased depending on the irradiation time, showing the decay process of fluorescent material in Legionella cells. Initial decay rates were also found to vary with UV‐photointensity. These results indicate that the photogate‐type optical sensor can detect Legionella by using a simple combination of photochemical reaction rate constant and the excitation light intensity.
ISSN:1942-9533
1942-9541
DOI:10.1002/ecj.12269