scholarly journals Real-time in situ electron spin resonance measurements on fungal spores of Penicillium digitatum during exposure of oxygen plasmas

2012 ◽  
Vol 101 (1) ◽  
pp. 013704 ◽  
Author(s):  
Kenji Ishikawa ◽  
Hiroko Mizuno ◽  
Hiromasa Tanaka ◽  
Kazuhiro Tamiya ◽  
Hiroshi Hashizume ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Real Time ◽  
Electron Spin ◽  
Fungal Spores ◽  
Penicillium Digitatum ◽  
Spin Resonance

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

2012 ◽  
Vol 1469 ◽  
Author(s):  
Kenji Ishikawa ◽  
Hiroko Moriyama ◽  
Kazuhiro Tamiya ◽  
Hiroshi Hashizume ◽  
Takayuki Ohta ◽  
...  
Keyword(s):  
Free Radicals ◽  
Electron Spin Resonance ◽  
Reaction Mechanism ◽  
Electron Spin ◽  
Fungal Spores ◽  
Plasma Discharge ◽  
Oxygen Species ◽  
Spin Resonance ◽  
G Value

ABSTRACTWe 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

In situ electron spin resonance observation of Si(111) 7×7 surface during hydrogenation process

2001 ◽  
Vol 19 (5) ◽  
pp. 1898 ◽  
Author(s):  
Wataru Futako ◽  
Masayasu Nishizawa ◽  
Tetsuji Yasuda ◽  
Jun-ichi Isoya ◽  
Satoshi Yamasaki
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Hydrogenation Process ◽  
Spin Resonance

Probing Semiconductor/Insulator Heterostructures Through Electron Spin Resonance of Point Defects: Interfaces, Interlayers, and Stress

2006 ◽  
Vol 984 ◽  
Author(s):  
A. Stesmans ◽  
K. Clémer ◽  
P. Somers ◽  
V. V. Afanas'ev
Keyword(s):  
Electron Spin Resonance ◽  
Integrated Circuits ◽  
Electron Spin ◽  
Point Defects ◽  
Atomic Scale ◽  
Interface Quality ◽  
Si Substrates ◽  
Spin Resonance ◽  
The Impact

AbstractElectron spin resonance (ESR) spectroscopy has become indispensable when it comes to the characterization on atomic-scale of structural, and correlated, electrical properties of actual semiconductor/insulator heterostructures. Through probing of paramagnetic point defects such as the Pb-type defects, E', and EX as a function of VUV irradiation and post deposition heat treatment, basic information as to the nature, quality, and thermal stability of the interface and interfacial regions can be established. This is illustrated by some specific examples of ESR analysis on contemporary Si/insulator structures promising for future developments in integrated circuits. First the impact of strain on the Si/SiO2 entity will be discussed. Through ESR analysis of thermally oxidized (111)Si substrates mechanically stressed in situ during oxidation, and tensile strained (100)sSi/SiO2 structures, it will be pointed out that in-plane tensile stress in Si can significantly improve the interface quality. Next, ESR results for stacks of (100)Si/SiOx/HfO2 and (100)Si/LaAlO3 are presented, revealing the potential to attain a high quality Si/SiO2 interface for the former and an abrupt, thermally stable interface for the latter.

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