skip to main content
Idioma:

Mechanisms of bacterial inactivation in the liquid phase induced by a remote RF cold atmospheric pressure plasma jet

van Gils, C A J ; Hofmann, S ; Boekema, B K H L ; Brandenburg, R ; Bruggeman, P J

Journal of physics. D, Applied physics, 2013-05, Vol.46 (17), p.175203-1-14 [Periódico revisado por pares]

Bristol: IOP Publishing

Texto completo disponível

Citações Citado por
  • Título:
    Mechanisms of bacterial inactivation in the liquid phase induced by a remote RF cold atmospheric pressure plasma jet
  • Autor: van Gils, C A J ; Hofmann, S ; Boekema, B K H L ; Brandenburg, R ; Bruggeman, P J
  • Assuntos: Bacteria ; Exact sciences and technology ; Optical (ultraviolet, visible, infrared) measurements ; Physics ; Physics of gases, plasmas and electric discharges ; Physics of plasmas and electric discharges ; Plasma diagnostic techniques and instrumentation ; Pseudomonas aeruginosa
  • É parte de: Journal of physics. D, Applied physics, 2013-05, Vol.46 (17), p.175203-1-14
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: A radio-frequency atmospheric pressure argon plasma jet is used for the inactivation of bacteria (Pseudomonas aeruginosa) in solutions. The source is characterized by measurements of power dissipation, gas temperature, absolute UV irradiance as well as mass spectrometry measurements of emitted ions. The plasma-induced liquid chemistry is studied by performing liquid ion chromatography and hydrogen peroxide concentration measurements on treated distilled water samples. Additionally, a quantitative estimation of an extensive liquid chemistry induced by the plasma is made by solution kinetics calculations. The role of the different active components of the plasma is evaluated based on either measurements, as mentioned above, or estimations based on published data of measurements of those components. For the experimental conditions being considered in this work, it is shown that the bactericidal effect can be solely ascribed to plasma-induced liquid chemistry, leading to the production of stable and transient chemical species. It is shown that HNO2, ONOO− and H2O2 are present in the liquid phase in similar quantities to concentrations which are reported in the literature to cause bacterial inactivation. The importance of plasma-induced chemistry at the gas-liquid interface is illustrated and discussed in detail.
  • Editor: Bristol: IOP Publishing
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.