Etching of polymers, proteins and bacterial spores by atmospheric pressure DBD plasma in air

0475063 - ÚFP 2018 RIV GB eng J - Journal Article
Kuzminova, A. - Kretková, T. - Kylián, O. - Hanuš, J. - Khalakhan, I. - Prukner, Václav - Doležalová, Eva - Šimek, Milan - Biederman, H.
Etching of polymers, proteins and bacterial spores by atmospheric pressure DBD plasma in air.
Journal of Physics D-Applied Physics. Roč. 50, č. 13 (2017), č. článku 135201. ISSN 0022-3727. E-ISSN 1361-6463
R&D Projects: GA MŠMT(CZ) LD13010
Grant - others:European Cooperation in Science and Technology(XE) COST MP1101
Program: Materials, Physical and Nanosciences COST Action MP1101
Institutional support: RVO:61389021
Keywords : dielectric barrier discharges (DBD) * bio-decontamination * etching * polymers * biomolecules * spores * surface treatment
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 2.373, year: 2017
http://iopscience.iop.org/article/10.1088/1361-6463/aa5c21/meta

One of the key processes that leads to a desired result is plasma etching and thus the evaluation of etching rates of organic materials is of high importance. We report here on the systematic study of the etching of nine different common polymers that mimic the different structures of more complicated biological systems, bovine serum albumin (BSA) selected as the model protein and spores of Bacillus subtilis taken as a representative of highly resistant micro-organisms. The treatment of these materials was performed by means of atmospheric pressure DBD sustained in open air at constant conditions. All tested polymers, BSA and spores, were readily etched by DBD plasma. However, the measured etching rates were found to be dependent on the chemical structure of treated materials, namely on the presence of oxygen in the structure of polymers.
Permanent Link: http://hdl.handle.net/11104/0271985