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Sensing Legionella by photogate‐type fluorescence sensor
Author(s) -
Tanaka Sawako,
Choi Young Joon,
Ishida Makoto,
Sawada Kazuaki,
Ishii Hiromu,
Machida Katsuyuki,
Nikaido Yasuhiko,
Saito Mitsumasa,
Yoshida Shinichi
Publication year - 2020
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12269
Subject(s) - fluorescence , legionella , materials science , excitation , photochemistry , optoelectronics , irradiation , chemistry , optics , bacteria , physics , biology , quantum mechanics , nuclear physics , genetics
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.