Research Project
Grant-in-Aid for Challenging Exploratory Research
Antimicrobial mechanism of silver nanoparticles were discussed by using material analysis methods. The XAFS analysis technique was used to investigate the change in the chemical state of silver nanoparticles under antimicrobial test environments. Sulfur-containing substances such as cysteine, methionine and glutathione was used as model compounds. It was revealed that chemical state of the silver nanoparticles changed from the metal to form sulfur bonded state under high concentration of sulfur-containing substances. It was strongly suggested that this change in the chemical state is a factor to inactivate antimicrobial properties.SEM observation of antibacterial treated bacteria was carried out using E-coli as the model bacterial species. It was revealed that the action mechanism of silver nanoparticles was not membrane destruction.
All 2018 2017 2016
All Journal Article (7 results) (of which Int'l Joint Research: 2 results, Peer Reviewed: 4 results, Acknowledgement Compliant: 2 results) Presentation (8 results) (of which Invited: 1 results)
日本防菌防黴学会誌
Volume: in press
ケミカルエンジニヤリング
Volume: 63 Pages: 293-298
化学工学
Volume: 82 Pages: 143-145
Journal of Antimicrobial Agents
Volume: 3 Issue: 03 Pages: 1000146-1000146
10.4172/2472-1212.1000146
大阪大学工業会誌 テクノネット
Volume: 4 Pages: 10-15
Biocontrol Science
Volume: 22 Pages: 47-53
130005493105
Materials Research Society Symposium Proceedings
Volume: 印刷中 Issue: 11 Pages: 705-710
10.1557/adv.2016.43
