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Characterization of a plasma source for biomedical applications by electrical, optical, and chemical measurements
Author(s) -
Neretti Gabriele,
Tampieri Francesco,
Borghi Carlo Angelo,
Brun Paola,
Cavazzana Roberto,
Cordaro Luigi,
Marotta Ester,
Paradisi Cristina,
Seri Paolo,
Taglioli Matteo,
Zaniol Barbara,
Zuin Matteo,
Martines Emilio
Publication year - 2018
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201800105
Subject(s) - plasma , plasma medicine , schlieren , helium , characterization (materials science) , microplasma , materials science , metastability , excited state , atmospheric pressure plasma , atmospheric pressure , analytical chemistry (journal) , chemistry , nanotechnology , environmental chemistry , atomic physics , optics , physics , organic chemistry , quantum mechanics , meteorology
This paper reports the characterization of a low‐power, atmospheric pressure plasma source developed for and successfully tested in applications of plasma medicine. The source produces plasma by ionizing a helium flow containing traces of air. The effluent gas is thus enriched in reactive oxygen and nitrogen species as well as helium metastable excited states. Electrical measurements, Schlieren imaging, OES and various chemical analyses and probes enabled us to fully characterize the plasma source and to determine some fundamental parameters for treating living samples such as the power feeding the discharge, the optimal source to target distance, the maximum exposure time, and to identify the major chemical species responsible for the biological action on exposed living matter.