in this paper, construction of triplet atmospheric plasma jet using argon, air, oxygen and nitrogen gases is reported. bactericidal effect of the plasma jet is also investigated. to that end, longitudinal geometric configuration for the electrodes was chosen because it would increase the jet length. electrical characteristics, jet length dependencies on the applied voltage and gas flow rate wer...

Most of spices are produced using traditional systems. In unsanitary conditions, spices can contain large numbers of pathogenic microbes such as bacteria, molds and yeasts. Some microorganisms are known as human pathogens, which need disinfection mechanisms that minimize their potential harms to active substances in spices. Use of contaminated spices in foods can significantly decrease the shel...

Atmospheric pressure non-equilibrium (cold) plasmas are already known to be effective sterilization agents. This work further confirms the ability of cold plasma to inactivate pathogenic organisms in a live animal model. The rat wound model used here represents a surgical treatment situation whereby the wound is open and the bleeding is controlled. High concentration of Staphylococcus aureus is...

Plasma medicine is a new, largely unexplored, multi-disciplinary scientific field, which involves physics, chemistry, engineering and biology. This field emerged as results of intense research effort over last few decades in low-temperature (or cold) atmospheric plasma application in bioengineering [1-3]. The unique chemical and physical properties of cold atmospheric plasma (CAP) have enabled ...

INTRODUCTION Cold plasma is a partially ionized gas generated by an electric field at atmospheric pressure that was initially used in medicine for decontamination and sterilization of inert surfaces. There is currently growing interest in using cold plasma for more direct medical applications, mainly due to the possibility of tuning it to obtain selective biological effects in absence of toxici...

Ultra-high molecular weight polyethylene (UHMWPE) is frequently employed in joint replacements because of its high biocompatibility; however, this material does not exhibit particularly strong wear performance, thus potentially reducing the longevity of such devices. Numerous techniques have been investigated to increase the resistance to wear of UHMWPE, but they are all based on expensive mach...

background: dielectric barrier discharge (dbd), a source of non-thermal plasma, is used in surface decontamination. objective: to study the effect of dbd plasma treatment, we evaluated the effect of plasma exposure time on inactivation of bacillus subtilis. results: applying the dbd plasma to the culture of b. subtilis caused complete sterilization of the surface without any thermal effects. in...

It is important to secure food safety. If a packaged can be sterilized, poisoning reduced considerably because the in plastic container useful prevent attaching microorganisms. However, fresh food, e.g., salad or sashimi, cannot sterilized by thermal sterilization. Therefore, we are studying sterilization methods for foods, such as packed salads. In this study, have investigated applicable prob...