Huijun Zhang, Hongmei Liu, Changsheng Mu, C. Qiu, Dajun Wu
{"title":"Antibacterial Properties of Nanometer Fe3+-TiO2 Thin Films","authors":"Huijun Zhang, Hongmei Liu, Changsheng Mu, C. Qiu, Dajun Wu","doi":"10.1109/NEMS.2006.334573","DOIUrl":null,"url":null,"abstract":"In order to study antibacterial properties of nanometer TiO2 thin films, nanometer Fe3+-TiO2 films have been prepared on glass by RF magnetron co-sputtering method. The films were characterized by SEM, XRD, and XPS. The influence of Fe element and calcination temperature on the films structure was investigated. The principle of substitution impurity to improve the activity was discussed. The bactericidal activity for the bacteria cells was estimated by relative number of bacteria survived calculated from the number of viable cells which from colonies on the nutrient agar plates. The crystallite size of the anatase phase increases with increasing calcination temperature. XPS results show that doped-Fe is present in the oxide state. The nanometer Fe3+-TiO2 thin films exhibited a high antibacterial activity, which was enhanced with the increase of the temperature of thermal treatment and formation of anatase crystalline structure.","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"13 4-5 1","pages":"955-958"},"PeriodicalIF":0.0000,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NEMS.2006.334573","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
In order to study antibacterial properties of nanometer TiO2 thin films, nanometer Fe3+-TiO2 films have been prepared on glass by RF magnetron co-sputtering method. The films were characterized by SEM, XRD, and XPS. The influence of Fe element and calcination temperature on the films structure was investigated. The principle of substitution impurity to improve the activity was discussed. The bactericidal activity for the bacteria cells was estimated by relative number of bacteria survived calculated from the number of viable cells which from colonies on the nutrient agar plates. The crystallite size of the anatase phase increases with increasing calcination temperature. XPS results show that doped-Fe is present in the oxide state. The nanometer Fe3+-TiO2 thin films exhibited a high antibacterial activity, which was enhanced with the increase of the temperature of thermal treatment and formation of anatase crystalline structure.
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