Decontamination of Surfaces From Extremophile Organisms Using Nonthermal Atmospheric-Pressure Plasmas

Electro-hydrodynamics and kinetic modelling of polluted air flow activated by multi-tip-to-plane corona discharge

“…(9) leads to a maximum temperature rise of 1200 K in the vicinity of the pins and involves implicitly the loss of thermal energy around the pin due to the gas expansion. However, the consideration of source term (9) should not induce new non physical pressure waves. This implies the use of the incompressible gas assumption in the set of Eqs.…”

“…Atmospheric Corona Discharge Reactors (ACDR) are efficient device to generate active chemical species in proportion of some hundred to thousand of ppm. They are, therefore, interesting candidates in several low temperature plasma applications, like pollution control, 1-4 or biomedical field [5][6][7] or biological surface decontamination, [8][9][10][11] where chemical reactivity is the main pathway of treatment without any significant increase of temperature. However, many complexes processes and phenomena can affect the efficiency of the ACDR, i.e., the rate of formation or transformation of chemical species with respect to the electrical energy consumption and the nature of the chemical by-products.…”

Time effect and aliquot concentration inStreptococcus mutanselimination by plasma needle

“…The plasma medicine concept is emerging worldwide with promising applications such as bacterial inactivation [1,2] dental cavity [3], surface sterilization [4,5], live skin treatment [6,7], blood coagulation [8] or tissue cauterization [9]. Such applications require a wide variety of plasma sources: plasma needle [10], atmospheric-pressure plasma plume [11], floating-electrode dielectric barrier discharge (FE-DBD) [12], atmospheric-pressure glow discharge torch [13], microhollow cathode discharge air plasma jet [14], microwave plasma torch [15], helium plasma jets [3], dielectric barrier discharge (DBD) [16] and nanosecond plasma gun [17], among many others.…”

Effect of Cold Atmospheric Plasma on Ehrlich Carcinoma

“…A plasma is an ionized medium that contains numerous active components including electrons and ions, free radicals, reactive molecules, and photons (1,2) . Plasma can be categorized as either local thermodynamic (thermal) equilibrium plasma (LTE) or non-local thermodynamic (cold) equilibrium plasma (non-LTE) and it is important to note that an atmospheric plasma jet can be divided in two zones: A central zone or plasma core which is in LTE and a peripheral zone or plasma plume which is in non-LTE.…”