Articolo in rivista, 2020, ENG, 10.1088/2058-6272/ab8c32
Vassallo Espedito; Pedroni Matteo; Silvetti Tiziana; Morandi Stefano; Brasca Milena
CNR ISTP, Istituto per la Scienza e Tecnologia dei Plasmi, Milano, Italy; CNR ISPA, Istituto di Scienze delle Produzioni Alimentari, Milano, Italy
In this paper, a low-pressure capacitively coupled plasma discharge sustained in an argonoxygen mixture was studied in order to evaluate its properties in terms of inactivation of Staphylococcus aureus. The plasma parameters as electron temperature and plasma density were measured by the Langmuir probe (Ne ? 1015 m-3 , Te ? 1.5 eV), while the neutral atom density was in the range of 1021 m-3 . In the plasma phase, oxygen radicals were taken as reference of the reactive species with antimicrobial activity, and oxygen spectral lines, over a range of plasma process parameters, were investigated by the optical emission spectroscopy. Optimal plasma conditions were found, and a count reduction of 4 log in a few minutes of the bacterium proves the potentiality of an industrial grade plasma reactor as a sterilization agent.
Plasma Science & Technology 22 (8), pp. 085504-1–085504-7
Staphylococcus aureus, capacitively coupled plasma, bacteria decontamination
Morandi Stefano, Pedroni Matteo, Vassallo Espedito, Brasca Milena, Silvetti Tiziana
ISPA – Istituto di scienze delle produzioni alimentari, ISTP – Istituto per la Scienza e Tecnologia dei Plasmi
ID: 423578
Year: 2020
Type: Articolo in rivista
Creation: 2020-06-08 09:40:03.000
Last update: 2022-02-07 17:09:40.000
External links
OAI-PMH: Dublin Core
OAI-PMH: Mods
OAI-PMH: RDF
URL: https://iopscience.iop.org/article/10.1088/2058-6272/ab8c32/meta
External IDs
CNR OAI-PMH: oai:it.cnr:prodotti:423578
DOI: 10.1088/2058-6272/ab8c32
Scopus: 2-s2.0-85085604883
ISI Web of Science (WOS): 000537732300001