Low-Voltage Plasma Jet With Piezoelectric Generator: Preliminary Evaluation of Decontamination Capabilities

Abstract

This paper deals with the proof of concept and the preliminary evaluation of decontamination performances obtained with a plasma jet generated by a piezoelectric transformer. This low voltage supply solution (<10V) is investigated as a plasma jet device, compact and safe solution for the decontamination of medical thermo-sensitive devices. The principle of the piezoelectric generator is presented, followed by the optical spectroscopy of the plasma jet, the protocol conditions for the bactericidal effect observations and finally the reduction rates obtained on Pseudomonas aeruginosa and Staphylococcus aureus bacteria strains with an argon plasma jet at atmospheric pressure about 2.5W electrical input power.

Bacterial Decontamination of Water-Containing Objects Using Piezoelectric Direct Discharge Plasma and Plasma Jet

“…In the study [43], decontamination experiments were conducted utilizing an atmospheric pressure plasma jet driven by a piezoelectric transformer. The efficacy of the decontamination process was assessed in terms of reduction rates for Pseudomonas aeruginosa and Staphylococcus aureus bacterial strains.…”

“…Despite the results of using PDD in the treatment of liquids, animal cells, and plant surfaces presented in the literature, the results of antibacterial studies are poorly presented [43,44]. In this article, we set out to study the capabilities of the PDD and PDDdriven argon plasma jet [45,46] in solving problems of bacterial decontamination of the surface of biological objects, that is, water-containing objects, in combination with the issue of scaling the technology.…”

Piezoelectric atomization of liquids with dynamic viscosities up to 175 cP at room temperature

“…An ultrasonic motor uses two vibrations of the same frequency and different phases perpendicular to each other, so the surface particles of the stator of the ultrasonic motor form an elliptical trajectory, thus driving an object to move by friction [38] . Due to its simple structure, small size, light weight, fast response time, low noise level, large torque at low speed, good control characteristics, self-locking characteristic under power failure, freedom from magnetic field interference, and accurate motion [39] , [40] , ultrasonic motors are widely used in the automotive, aerospace, precision manufacturing, optical scanning, biotechnology and medicine [41] , [42] , [43] , [44] , [45] , [46] , [47] , and energy harvesting fields [48] , [49] , [50] , [51] .…”

The influence of laser surface texture on the tribological properties of friction layer materials in ultrasound motors

“…As a result, the demand for practical applications of these motors in the industry continues to grow. These industrial applications include automotive, 1 aerospace, 2,3 precision manufacturing, 4,5 optical scanning, 6,7 biotechnology and medicine, and energy harvesting. 8 Performance improvements and extended motor life have become two crucial issues in the commercialization of USMs.…”