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Hungary

Iceland

Ireland

Israel

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Comenius University

Mlynska dolina F2
84248 Bratislava
Slovakia

Contact email:

Website: enviro.fmph.uniba.sk /

Brief presentation of the institution

Comenius University in Bratislava (www.uniba.sk, founded 1919) is the oldest, the largest and the most prominent university in Slovakia with the greatest international reputation in Slovakia and worldwide. Its fundamental mission is the advancement and dissemination of knowledge and its understanding. CU consists of 13 faculties (schools), 13 additional educational and scientific institutions and 11 other establishments. The specializations of the faculties encompass almost all disciplines in science and humanities (medicine, pharmacy, law, philosophy, natural and life sciences, mathematics, physics and informatics, education, sports, management, social and economic sciences, theology). This large variety enables gathering of a multidisciplinary research team from three faculties under the same university.



Faculty of Mathematics, Physics and Informatics (FMFI), compared with other faculties of the University, cover a large number of PhD students, which is a sign of its research orientation. FMFI also leads in the number of publications, citations, research grants and international research collaborations. FMFI provides individual approach of teachers towards students and thus promoting a high quality of education and training. The university has large experience with management and implementation of a multitude of projects including EC programmes within FP7, H25020; ESF, COST, EURATOM, NATO, etc.



Plasmas with liquids are being investigated in two research groups:


Department of Experimental Physics

The Plasma physics division of the Department of Experimental physics is active in the research covering following fields:

1) Elementary processes in Plasma, including Electron interactons (Electron ionisation, Elecetron Attachent, Electron Induced Processes. The studies are focused on te mechanism of electron interactions, energetics of the reactions and the kinetics of the electron processes.

2) DC and RF Microdischarges at electrode separations in the range of 500 - 1 micrometers in gases and vapours, including wate vapours.

3) Ion processes at atmospheric pressure, including Ion Mobiliry Spectrometry and Mass Spectrometry. Application of these methods to  gas, liquid and surface analysis.


Division of Environmental Physics
(Department of Astronomy, Earth Physics and Meteorology)

  • fundamental studies of plasmas and physics of electrical discharges at atnospsheric pressure,
  • advanced optical and electrical diagnostics of atmospheric pressure discharges
  • applications of non-thermal plasma for biodecontamination and treatment of gaseous and liquid pollutants, both in laboratory scale and in pilot scale systems
  • non-plasma technologies for utilization of organic waste, depolution of exhaust gases, and alternative sources of energy (hydrogen and solar)



We will host the next International Conference on Plasma Medicine (ICPM6, www.icpm6.com)
 

Main Plasma with liquids related topics

Discharges in contact with water and water electro-spray
Electrical and optical diagnostics of DC, AC and pulsed discharges.

Chemical diagnostics of plasma treated gases (air) and liquids (water).

Chemical and biological decontamination of liquids.

Diagnostics and modeling of discharges
 
Electrical and optical diagnostics of discharges in contact with water by electro-spraying through the plasma or with liquid electrode (possibly circulated by pumping).

Oscilloscopic measurements supplemented by advanced optical diagnostics: time-resolved (ns) optical emission spectroscopy and fast (ns) 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

Bio-decontamination of liquids, surfaces (foils, glass, teeth) of bacteria, spores, and biofilms, and treatment of normal and cancer 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).
 
Microdischarges in water vapours


DC and RF breakdown

Diagnostics of microdischarges using electric measurements, OES, FTIR and IMS and ISM-MS techniques

IMS and IMS-MS analysis of liquids
thermospray sampling of liquids
analysis of aminoacids and peptides in water

detection of impurities in water

Elementary processes in water vapours

electron drift in mixtures of water and molecuels

dissociative excitation of water

electron attachment and electron ionisation to water clusters of molecules
 

Main Plasma with liquids related research techniques and equipment

CEMBIA  - Crossed Electron-Molecular Beam Ionisaiton Apparatus for ionasing electron interactions

CEMBA - Cluster Electron Beams Apparatus

EIFA - Electron Induced Fluorescence Apparatus

CD-IMS - Corona Discharge Ion Mobility Spectrometry

CD-IMS-oaTOF - Corona discharge ortogonal acceleration Time Of Flight Mass Spectrometer


Vapour, liquid and Surface smapling methods for IMS and IMS-oaTOF

EDA - Electron Drift Apparatus

Apparatus for DC and RF microdischarges

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 discharge imaging and spectroscopy

Gas and water chemical analysis (flue gas analyzer, ozonemeter, FTIR and UV-VIS absorption spectrometers, fluorescence spectrometer)

Microbiology cultivation facilities (sterile box, thermostat)
 

Brief information on available facilities related to Plasma with liquids

Willingness to accept/host visiting researchers

Participation in Working Groups

Projects:

  • Generation of microdischarges, diagnostics and relevant volume and heterogeneous processes
    Project type: National
    Funding: Scientific Grant Agency of the Ministry of Education VEGA
  • Investigation of plasma-cell interaction for bio-decontamination and medical applications
    Project type: National
    Funding: Slovak Research and Development Agency APVV
  • Kinetics of electron and ion processes for plasma and discharges
    Project type: National
    Funding: Slovak Research and Development Agency APVV
  • Multidimensional miniaturized separation methods combined with ion mobility spectrometry for environmental and biomedical analysis
    Project type: National
    Funding: Slovak Research and Development Agency APVV
  • Optical diagnostic of the interaction of water micro-droplets with electrical discharges used for bio-medical and environmental applications
    Project type: National
    Funding: Scientific Grant Agency of the Ministry of Education VEGA
  • Volume and surface processes in electric discharges at atmospheric pressure
    Project type: National
    Funding: Scientific Grant Agency of the Ministry of Education VEGA

Members:

Image Gallery:

Water electrospray with corona and transient spark discharge
Water electrospray with corona and transient spark discharge

Action Office

Working groups

Core Group

Related sites: