Ultrasounf sonic waves for disrupting bacterial cells
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Ultrasound potentially safe, effective way to kill bacteria. ... In the experiments, bacterial spores contained in a paper envelope, were placed slightly (3mm) above the active area of a specially equipped source of inaudible, high frequency (70 to 200 kHz) sound waves and hit for 30 seconds.
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Among the disruption protocols for bacterial cells, sonication is one of the most effective at a laboratory scale [1, 2]. ... The treatment of microbial cells in suspension with inaudible ultrasound (greater than 18,000 Hz) results in their inactivation and disruption [7].
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