The effects of the bacterial interaction with visible-light responsive titania photocatalyst on the bactericidal performance.
The effects of the bacterial interaction with visible-light responsive titania photocatalyst on the bactericidal performance.
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DOI：
10.1186/1423-0127-16-7
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发表时间：
2009-01-15
影响因子：
11
通讯作者：
Chang HH
中科院分区：
文献类型：
--
作者：
Cheng CL;Sun DS;Chu WC;Tseng YH;Ho HC;Wang JB;Chung PH;Chen JH;Tsai PJ;Lin NT;Yu MS;Chang HH
传统的二氧化钛(TiO2光催化剂)只有在紫外光照射下才能有效杀菌，这限制了TiO2光催化剂在生活环境中的潜在应用。最近，含碳的二氧化钛被发现在可见光照射下具有光活性，这为克服这一问题提供了可能性；尽管这些光催化剂的杀菌活性相对低于传统消毒剂。扫描电子显微镜和共聚焦拉曼光谱图谱分析表明，这些锐钛矿型/金红石型含碳二氧化钛与细菌的相互作用显著增强。杀菌实验表明，这种具有更高细菌相互作用性质的新纳米颗粒对所有受试病原菌包括金黄色葡萄球菌、福氏志贺菌和鲍曼不动杆菌的杀灭比例显著提高。这些发现表明，所创建的具有高细菌相互作用能力的材料可能是提高可见光激活的二氧化钛抗菌活性的有用策略。
Bactericidal activity of traditional titanium dioxide (TiO2) photocatalyst is effective only upon irradiation by ultraviolet light, which restricts the potential applications of TiO2 for use in our living environments. Recently carbon-containing TiO2 was found to be photoactive at visible-light illumination that affords the potential to overcome this problem; although, the bactericidal activity of these photocatalysts is relatively lower than conventional disinfectants. Evidenced from scanning electron microscopy and confocal Raman spectral mapping analysis, we found the interaction with bacteria was significantly enhanced in these anatase/rutile mixed-phase carbon-containing TiO2. Bacteria-killing experiments indicate that a significantly higher proportion of all tested pathogens including Staphylococcus aureus, Shigella flexneri and Acinetobacter baumannii, were eliminated by the new nanoparticle with higher bacterial interaction property. These findings suggest the created materials with high bacterial interaction ability might be a useful strategy to improve the antimicrobial activity of visible-light-activated TiO2.
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影响因子：
3.7
作者：
Kau JH;Sun DS;Huang HH;Wong MS;Lin HC;Chang HH
通讯作者：
Chang HH
影响因子：
11.4
作者：
Jacoby, WA;Maness, PC;Fennell, JA
通讯作者：
Fennell, JA
影响因子：
10.9
作者：
Inagaki, M;Hirose, Y;Toyoda, M
通讯作者：
Toyoda, M
影响因子：
3.1
作者：
Mitoraj, Dariusz;Janczyk, Agnieszka;Macyk, Wojciech
通讯作者：
Macyk, Wojciech
影响因子：
9.7
作者：
Rana, S.;Rawat, J.;Misra, R. D. K.
通讯作者：
Misra, R. D. K.