Title :
Study of bactericidal effects of corona discharge at atmospheric pressure on various bacteria
Author :
Julák, Jaroslav ; Kriha, Víezslav ; Scholtz, Vladimír
Author_Institution :
Inst. of Immunology & Microbiology, Praha
Abstract :
Summary form only given. Conventional methods of decontamination or sterilization are based on using the chemical agents or heat, which may be unapplicable for heat-labile materials, foods etc. It seems possible, that the conventional methods may be appropriately replaced by the nondestructive non-thermal plasma. We studied bactericidal effects of non-thermal plasma generated by the corona discharge in several experiments. Simple apparatus for generating the corona discharge at atmospheric pressure was built. Using this apparatus, we examined the corona discharge bactericidal effects on various gram-negative and gram-positive non-sporulating bacteria. The results showed, that the corona discharge at atmospheric pressure lowers the number of surviving bacteria up to their total elimination in 5-15 minutes. This makes it possible to use this method as an alternative method of decontamination
Keywords :
biological techniques; corona; decontamination; microorganisms; plasma materials processing; plasma sources; 5 to 15 min; atmospheric pressure; bacteria; chemical agents; corona discharge; decontamination; gram-negative nonsporulating bacteria; gram-positive nonsporulating bacteria; heat-labile materials; nondestructive nonthermal plasma; sterilization; Atmospheric-pressure plasmas; Corona; Decontamination; Heat engines; Immune system; Microorganisms; Plasma chemistry; Plasma materials processing; Polymers; Resistance heating;
Conference_Titel :
Plasma Science, 2006. ICOPS 2006. IEEE Conference Record - Abstracts. The 33rd IEEE International Conference on
Conference_Location :
Traverse City, MI
Print_ISBN :
1-4244-0125-9
DOI :
10.1109/PLASMA.2006.1707077
