Formation of ammonium in saline solution treated by nanosecond pulsed cold atmospheric microplasma: a route to fast inactivation of E. coli bacteria



S. Maheux, D. Duday, T. Belmonte, C. Penny, H.-C. Cauchie, F. Clément, and P. Choquet


RSC Advances, vol. 52, no. 5, pp. 42135-42140, 2015


He/N<small>2</small> cold atmospheric plasma treatment of E. coli suspension leads to a fast and efficient inactivation process. Significant generation of ammonium is reported. The formation of NH<small>4</small><small>+</small> species in saline solution treated by cold atmospheric plasma is proposed for the first time as the main process responsible for the fast bacterial inactivation in pH-buffered solutions, at ambient temperature and physiological pH.


DOI: 10.1039/C5RA01109D

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