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Biophysical Journal 8: 164-174 (1968)
© 1968 the Biophysical Society

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Stability of Radiation-Induced Organic Free Radicals

Decay by Heat

P. K. Horan, W. D. Taylor, G. K. Strother and W. Snipes

ABSTRACT

The rate of free radical decay was measured at various temperatures using electron paramagnetic resonance spectroscopy. Rate constants determined from first-order decay kinetics were used to determine the activation energy for the process of free radical decay. The similarity between the temperature dependence of free radical decay by heat and that of electrical conductivity has led us to consider the possibility that the two processes may be related. Mechanisms by which a population of electron-hole conducting states may lead to free radical decay are outlined and experimental data relating to these mechanisms are discussed.






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Copyright © 1968 by the Biophysical Society.