Plasma-activated water mist (PAWM) is obtained by the ignition of plasma within an air-vapor mixture. PAWM demonstrates significant antibacterial properties, decreasing loads of foodborne pathogens by a factor of 35.5 for Listeria monocytogenes, 166 for Salmonella Typhimurium, and 266 for Escherichia coli O157:H7 within 15 s. Bacterial biofilms have a similar species-dependant susceptibility. Biofilms of L. monocytogenes, Salmonella Typhimurium, and E. coli O157:H7 are destroyed by 44%, 77%, and 71%, respectively, after being treated for 2 min. Obtained results suggest importance of short-lived radicals, because PAWM condensate is not bactericidal. A new model of PAW generation as a cyclic process of oxidation reactive nitrogen species by reactive oxygen species, which occurs during effective bidirectional mass transfer between heavily humid air and water mist in plasma discharge, is presented.

Copper nanoparticles induce constraints to segmental dynamics of poly(ethylene oxide) macromolecules which influence non-fouling/antibacterial properties of Cu/PEO nanocomposite films.

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Titanium dioxide aerogel (TiAP) powders were prepared by lyophilization of peroxo-polytitanic gels followed by annealing at 800 °C to obtain anatase structure. The surface modification of TiAP was performed for...

In the present work, nanotwin structured TiO2 nanotube (TNT) layers are prepared by electrochemical anodization technique to form the anatase phase and by surface modification via spin-coating of Ce and...