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Research Groups - Japan
| Kitasato University, Tokyo - Dr Takeshi
Sasahara |
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Dr Takeshi Sasahara is an Assistant Professor at
the Kitasato University School of Medicine. He belongs to the
Department of Microbiology and Parasitology. His speciality is
Environmental Microbiology and Infection Immunology. He has made
numerous presentations and papers on his research at the Japanese
Association for Infectious Diseases and the Japanese Society of
Chemotherapy.
He has investigated the bactericidal activity of copper and its
alloys in the hospital environment. Staphylococcus aureus,
Escherichia coli and Pseudomonas aeruginosa were
killed when grown on the surface of copper alloys, depending on the
incubation period, with P aeruginosa being the most
sensitive. Japanese coins made of nickel silver, cupronickel,
bronze and brass also inhibited the growth of these bacteria on
nutrient agar.
On the basis of these results, a clinical trial was started to
monitor the level of contamination by nosocomia bacteria on the
surface of copper alloys in the Dematology Ward and Neonatal
Intensive Care Unit of Kitasato University Hospital from 2005. It
was found that copper alloys had a superior sanitising effect in
the hospital environment.
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