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Electron Spin Resonance (ESR) Observation of Radicals on Biological Organism Interacted with Plasmas

Published online by Cambridge University Press:  18 May 2012

Kenji Ishikawa
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Hiroko Moriyama
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Kazuhiro Tamiya
Affiliation:
Meijo University, Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
Hiroshi Hashizume
Affiliation:
Meijo University, Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
Takayuki Ohta
Affiliation:
Meijo University, Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
Masafumi Ito
Affiliation:
Meijo University, Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
Sachiko Iseki
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Hiromasa Tanaka
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Keigo Takeda
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Hiroki Kondo
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Makoto Sekine
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Masaru Hori
Affiliation:
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Abstract

We report the kinetic analysis of radicals on fungal spores of Penicillium digitatum interacted with charged-neutral oxygen species (O*) generated plasma discharge using real time in situ electron spin resonance (ESR) measurements. The ESR signal from the spores was observed at a g-value of around 2.004 with a line width of approximately 5G. We have successfully obtained information regarding the reaction mechanism with free radicals and realtime in situ ESR has proven to be a useful method to elucidate plasma-induced surface reactions on biological specimens

Type
Research Article
Copyright
Copyright © Materials Research Society 2012

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References

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