Lucia Strižencová

Bc. level: 2015 - 2016
Supervisor: Zdenko Machala
Title (en):
Testing of portable plasma pen for surface disinfection
Title (sk):
Testovanie prenosného plazmového pera na dezinfekciu povrchov
Abstract (en):  hide
The main objective of this work was testing of disinfection effects of a mobile plasma source generating non-thermal plasma by corona discharge (so called plasma pen), using normal air in atmospheric pressure as a working gas. The effect of disinfection has been tested on surfaces of bacteriological agars in Petri dishes which were contaminated by grampositive bacteria Staphylococcus aureus or gramnegative bacteria Pseudomonas aeruginosa or Escherichia coli. We compared disinfection effects on particular bacteria and the time of plasma aplication. We also compared disinfection effects of plasma with chemical biocides Persteril and Chirosan plus which are commonly used in medicine. These tests were performed on contaminated surgical scaplels. Non-thermal plasma of the mobile plasma source is an interesting alternative for local disinfection of object surfaces and it can be applied on heat non-resistant objects.
Abstract (sk)