Peer-Reviewed Journal Details
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Cotter JJ, Maguire P, Soberon F, Daniels S, O'Gara JP, Casey E
2011
July
J Hosp Infect
Disinfection of meticillin-resistant Staphylococcus aureus and Staphylococcus epidermidis biofilms using a remote non-thermal gas plasma.
Published
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Optional Fields
78
3
204
207
The effective disinfection of hospital surfaces is recognised as an important factor in preventing hospital-acquired infections. The purpose of this study was to quantify the disinfection rate of a novel gas plasma system on clinically relevant biofilms. Clinical isolates of Staphylococcus epidermidis and meticillin-resistant Staphylococcus aureus (MRSA) were grown as biofilms on glass surfaces and tested in a disinfection container remote from the plasma source. The strains used in this study were known to produce substantial quantities of biofilm and average log₁₀ counts were 9.0 and 9.1 cfu/cm(2) for S. epidermidis and MRSA respectively. Counts were reduced by between 4 and 4.5 log₁₀ after 1h of exposure for MRSA and S. epidermidis respectively. More prolonged treatment in the case of MRSA biofilms resulted in a 5.5 log₁₀ reduction after 90 min. Biofilm samples were also placed in medical device packaging bags and similar rates of disinfection were observed.
10.1016/j.jhin.2011.03.019
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