Photoinduced bactericidal activity of TiO2 films
| Autor: | I. S. Golubeva, V. V. Korolichin, S. N. Pleskova, E. A. Pershin, V. N. Burenina, Yu K Verevkin |
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| Rok vydání: | 2011 |
| Předmět: |
Microbial Viability
biology Annealing (metallurgy) chemistry.chemical_element biology.organism_classification medicine.disease_cause Applied Microbiology and Biotechnology Biochemistry Oxygen Microbiology chemistry Staphylococcus epidermidis Staphylococcus aureus medicine Escherichia coli Bacteria Bacterial Viability Nuclear chemistry |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1608-3024 0003-6838 |
| DOI: | 10.1134/s0003683811010091 |
| Popis: | A decline in CFU of gram-positive and gram-negative bacteria on the surface of UV illuminated TiO2 films (wavelength of 380 nm) is shown. A 29, 45, and 47% decrease in bacterial viability of Staphylococcus aureus, Staphylococcus epidermidis, and Escherichia coli, respectively, was seen following a 12-min exposition. It was first discovered that the reuse of TiO2 films to test a bacterial suspension for viability removes UV-induced bactericidal activity. However, annealing of TiO2 at a temperature above 400 degrees C restores the photoinduced bactericidal activity to its initial state. |
| Databáze: | OpenAIRE |
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