Inactivation of Pseudomonas aeruginosa biofilms formed under high shear stress on various hydrophilic and hydrophobic surfaces by a continuous flow of ozonated water
| Autor: | Dorian V. Lust, Grace E. Dickerman, Albert E. Parker, Johanna M. Schultz, Diane K. Walker, Evgenya S. Shelobolina |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Ozone Chemistry Pseudomonas aeruginosa Contact time Continuous flow 030106 microbiology Biofilm biochemical phenomena metabolism and nutrition Aquatic Science medicine.disease_cause Applied Microbiology and Biotechnology 03 medical and health sciences chemistry.chemical_compound Hydrophobic surfaces medicine Shear stress High shear stress Water Science and Technology Nuclear chemistry |
| Zdroj: | Biofouling. 34:826-834 |
| ISSN: | 1029-2454 0892-7014 |
| DOI: | 10.1080/08927014.2018.1506023 |
| Popis: | The inactivation of Pseudomonas aeruginosa biofilms grown on glass under high shear stress and exposed to a range of dissolved ozone concentrations (2, 5 and 7 ppm) at 10 and 20 min was investigated. The regression equation, log reduction (biofilm) = 0.64 + 0.59×(C – 2) + 0.33×(T – 10), described the dependence of biofilm inactivation on the dissolved ozone concentration (C, ppm) and contact time (T, min). The predicted D-values were 11.1, 5.7 and 2.2 min at 2, 5 and 7 ppm, respectively. Inactivation of biofilms grown on various surfaces was tested at a single dissolved ozone concentration of 5 ppm and a single exposure time of 20 min. Biofilms grown on plastic materials showed inactivation results similar to that of biofilms on glass, while biofilms grown on ceramics were statistically significantly more difficult to inactivate, suggesting the importance of utilizing non-porous materials in industrial and clinical settings. |
| Databáze: | OpenAIRE |
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