Related Experiment Video
Updated: Jun 1, 2026
Biofilm Removal Using Carbon Dioxide Aerosols without Nitrogen Purge
Published on: November 6, 2016
Disinfection of meticillin-resistant Staphylococcus aureus and Staphylococcus epidermidis biofilms using a remote
J J Cotter1, P Maguire, F Soberon
1UCD School of Chemical and Bioprocess Engineering, Centre for Synthesis and Chemical Biology, University College Dublin, Dublin, Ireland.
Abstract:
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.
More Related Videos
11:47Evaluation of the Efficacy of Organic Peroxyacids for Eradicating Dairy Biofilms Using an Approach Combining Static and Dynamic Methods
Published on: December 9, 2022
10:03Investigating the Detrimental Effects of Low Pressure Plasma Sterilization on the Survival of Bacillus subtilis Spores Using Live Cell Microscopy
Published on: November 30, 2017
Related Concept Videos
01:26Physical Methods for Controlling Microbial Growth: Radiation and Filtration
01:25Clinical Significance of Antibiotic Resistance
01:29Methods of Sterilization I: Physical Methods
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...