| abstract |
The antibacterial material includes at least one kind of fine particles selected from tungsten oxide fine particles and tungsten oxide composite fine particles. Microparticles, the test piece was attached microparticles 0.02 mg / cm 2 or more 40 mg / cm 2 or less in the range, Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus, and enterohemorrhagic [R = log (B 1 / C 1 )] (B 1 : unprocessed test) when a test for evaluating the number of viable bacteria after inoculating at least one kind of bacteria selected from E. coli and storing for 24 hours Antibacterial activity value R expressed by the average value (number) of viable bacteria after storage for 24 hours, and C 1 : average value (number of live bacteria after storage for 24 hours of test pieces coated with fine particles) Is 0.1 or more. |