title: Antibacterial and photocatalytic activity of TiO2 and ZnO nanomaterials in phosphate buffer and saline solution.
abstract: We studied antibacterial and photocatalytic activity of anatase TiO2 and ZnO in phosphate buffer and saline solution. We found that the different anions in the suspension medium (chloride and phosphate) significantly affected the following suspension properties: the stability of nanoparticle suspension, the release of metal ions from the nanoparticles, and the production of the reactive oxygen species by the nanoparticles. As a result, antibacterial activity and photocatalytic dye degradation were also affected. However, the effect of the suspension medium was different for ZnO and TiO2. Obtained results are discussed.
authors: Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, Hong Kong.
authors: Alan Man Ching
authors: AM
authors: Ng
authors: Charis May Ngor
authors: CM
authors: Chan
authors: Mu Yao
authors: MY
authors: Guo
authors: Yu Hang
authors: YH
authors: Leung
authors: Aleksandra B
authors: AB
authors: Djurišić
authors: Xu
authors: X
authors: Hu
authors: Wai Kin
authors: WK
authors: Chan
authors: Frederick Chi Chung
authors: FC
authors: Leung
authors: Shuk Yin
authors: SY
authors: Tong
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002021:Buffers; D004926:Escherichia coli / Q000187:drug effects; D008751:Methylene Blue / Q000378:metabolism; D008826:Microbial Sensitivity Tests; D049329:Nanostructures; D055668:Photochemical Processes; D012965:Sodium Chloride; D014025:Titanium / Q000494:pharmacology*; D015034:Zinc Oxide / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D002021:Buffers; C009495:titanium dioxide; D012965:Sodium Chloride; D014025:Titanium; D015034:Zinc Oxide; D008751:Methylene Blue