Journal
IEEE TRANSACTIONS ON PLASMA SCIENCE
Volume 28, Issue 5, Pages 1581-1587Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/27.901237
Keywords
Bacillus subtilis; continuous UV; decontamination; flashlamp; hydrogen peroxide; photosensitizer; pulsed UV; spores; surface sterilization; ultraviolet; UV light
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The experimental results on the development of a decontamination process that uses ultraviolet light and chemical photosensitizer for disinfecting surfaces and solutions are reported. Reduction in the microbial viability as a function of applied UV fluence is presented for the inactivation of Bacillus subtilis spores. Results obtained with aqueous solutions and with surfaces indicate that pulsed UV light is more effective than continuous UV light. Nearly three orders of magnitude of enhanced inactivation have been achieved with the photosensitized UV process on surfaces.
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