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Comparing the biocidal properties of non-thermal plasma sources by reference protocol

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Abstract

The previously proposed reference protocol enabling easy comparison of biocidal properties of different non-thermal plasma sources has been followed and discussed. For inactivation tests the reference protocol has used spores of Gram positive bacterium Bacillus subtilis (ATCC 6633) deposited on a polycarbonate membrane as reference sample. In this work, biocidal properties of a negative glow corona, positive streamer corona, positive transient spark and cometary discharges are being compared in both open air and closed apparatus. Despite the total number of bacteria surviving 1 h exposure has decreased by up to 7 orders in closed apparatus, in open one, only weak inhibition bactericidal effect has been observed.

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Correspondence to Vladimír Scholtz.

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Khun, J., Jirešová, J., Kujalová, L. et al. Comparing the biocidal properties of non-thermal plasma sources by reference protocol. Eur. Phys. J. D 71, 263 (2017). https://doi.org/10.1140/epjd/e2017-80115-9

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  • DOI: https://doi.org/10.1140/epjd/e2017-80115-9

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