Abstract
Recent investigations into laser sterilization have concentrated on using lower power lasers with photosensitizing materials, with applications in medicine and dentistry.1,2 However, it is often inconvenient to coat materials prior to sterilization, and moreover, this technique is relatively slow. In the present case, a 400 W, pulsed, Nd:YAG laser is used to investigate high power laser sterilization. Experiments to establish effects of high power, Nd:YAG laser radiation on Bacillus stearothermophilus spore strips and Escherichia coli in vitro are presented, and the results indicate that these lasers offer a rapid and efficient method of sterilization.
© 1995 IEEE
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