Zdenko MACHALA & Karol HENSEL machala@fmph.uniba.sk , hensel@fmph.uniba.sk

1. Division of Environmental Physics Faculty of Mathematics, Physics and Informatics, Comenius University Zdenko MACHALA & Karol HENSEL machala@fmph.uniba.sk, hensel@fmph.uniba.sk Mlynská dolina, Bratislava, Slovakia http://enviro.fmph.uniba.sk • Studied topics Discharges in contact with water and water electro-spray (WG2, WG3, WG4) • Electrical and optical diagnostics of DC, AC and pulsed discharges. • Chemical analysis of products in gas and liquid phase. • Chemical and biological decontamination of liquids. Diagnostics and modeling of discharges (WG2, WG3) • Electrical and optical diagnostics of discharges in contact with water sampled by electro-spraying or circulated by pumping. Oscilloscopic measurements supplemented by optical emission spectroscopy and fast camera imaging of the discharges. • Modeling the electron dynamics by Monte Carlo simulations in various water containing mixtures to understand the plasma induced chemistry and electrical discharges mechanisms. Bio-medical and environmental applications (WG4) • Bio-decontamination of liquids, surfaces (foils, teeth) of spores and biofilms, and treatment of normal and cancerous cells and DNA in cell culture media. • Chemical analysis of species in gas phase (NOx, O3, hydrocarbons) and liquid phase (H2O2, O3, NOx-, ONOO-). • Comparison of direct and indirect plasma agents and understanding plasma-water-cell interactions. • Understanding interaction of plasma with porous ceramic foams and capillaries for catalyst supported flue gas treatment (VOC, NOX). Corona discharge with electro-spray ICCD camera imaging of electro-spraying of water Treatment of tooth with DC transient spark discharge

2. Main experimental facilities • DC, AC, and pulsed high voltage power supplies, microwave plasma torch • Discharge reactors (corona and transient spark needle-to-plane, hollow needle for water electro-spray, DBDs and pulsed discharges in capillaries, porous ceramics and pellets) • Gas and water sampling systems (gas flow controllers, peristaltic and syringe pumps) • Electrical discharge diagnostics (oscilloscopes, high voltage probes, current monitors) • Optical emission spectroscopy systems (optical spectrometers, monochromator, PMT) • Fast ICCD camera for imaging and spectroscopy • Gas and water chemical analysis (flue gas analyzer, ozonemeter, infrared and UV-VIS absorption spectrometers, fluorescence spectrometer) • Microbiology cultivation facilities (sterile box, thermostat) • Main research collaborations and industrial partners • University of California, Berkeley, USA (Prof. David Graves) • ZIK Plasmatis, INP Greifswald, Germany (Dr. Stephan Reuter) • Ecole Centrale Paris, France (Prof. Christophe Laux) • Supélec, Paris, France (Prof. Emmanuel Odic) • Institute of Plasma Physics AS ČR, Prague, Czech Republic (Dr. Petr Lukeš) • Toyohashi University of Technology, Toyohashi, Japan (Prof. Akira Mizuno) • AIST, Tsukuba,Japan (Dr. Hyun-Ha Kim) • Division of Biomedical Physics, Comenius University (Prof. Libuša Šikurová) • Department of Biochemistry, Comenius University (Prof. Peter Polčic) • Main publications related to COST Action • Z. Machala, B. Tarabová,K. Hensel, E. Špetlíková, L. Šikurová, P. Lukeš: Formation of ROS and RNS in water sprayed through transient spark discharge in air and their bactericidal effects, Plasma Process. Polym. 10, 649-659 (2013) • B. Pongrác, Z. Machala: Electro-spraying of water with streamer corona discharge, IEEE Trans. Plasma Sci. 39, 2664-2665 (2011) • Z. Machala, L. Chládeková, M. Pelach: Plasma agents in bio-decontamination by dc discharges in atmospheric air, J. Phys. D: Appl. Phys. 43, 222001 (2010) • M. Janda, Z. Machala, M. Morvová, I. Morva: Study of plasma induced chemistry by DC discharges above water surface in CO2/N2/H2O, Orig. Life Evol. Biosph. 38, 23-35 (2008) • Z. Machala, M. Janda, K. Hensel, I. Jedlovský, L. Leštinská, V. Foltin, V. Martišovitš, M. Morvová: Emission spectroscopy of atmospheric pressure plasmas for bio-medical and environmental applications, J. Molec. Spectrosc. 243, 194-201 (2007) • J. Pawłat, K. Hensel, S. Ihara: Generation of oxidants and removal of indigo blue by pulsed power in bubbling and foaming systems, Czech. J. Phys. 56, B1174-B1178 (2006)