Antibacterial activity of ZnO nanoparticles under ambient illumination - The effect of nanoparticle properties

Ng, Y. H.1; Leung, Y. H.1; Liu, F. Z.1; Ng, A. M. C.1,2; Gao, M. H.1; Chan, C. M. N.3; Djurisic, A. B.1; Leung, F. C. C.3; Chan, W. K.4

2013-09-02

10.1016/j.tsf.2013.05.167

THIN SOLID FILMS   影响因子和分区

0040-6090

ZnO nanomaterials exhibit prominent antibacterial activity even without UV illumination. Their antibacterial activity was attributed to different mechanisms, such as production of reactive oxygen species (ROS) and/or release of zinc ions in solution. Here we examined the relationship between the properties of eight different ZnO nanoparticles, their production of ROS, zinc ion release and antibacterial activity. We found that while the particles exhibited differences in antibacterial activity, there was no correlation with ROS production and zinc ion release. However, ROS production was inversely correlated with the concentration of nonradiative defects indicating that the recombination losses of photogenerated carriers can negatively affect ROS production. (C) 2013 Elsevier B.V. All rights reserved.

Zinc oxide Nanoparticles Antibacterial activity

SCI ; EI

英语

其他

ITF project[ITS/086/12]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter

WOS:000323859400062

ELSEVIER SCIENCE SA

20133316615250

II-VI semiconductors ; Ions ; Metal nanoparticles ; Nanoparticles ; Zinc oxide

Nanotechnology:761 ; Inorganic Compounds:804.2

MATERIALS SCIENCE

Web of Science

1.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
2.South Univ Sci & Technol China, Dept Phys, Shenzhen, Peoples R China
3.Univ Hong Kong, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China
4.Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China

Ng, Y. H.,Leung, Y. H.,Liu, F. Z.,et al. Antibacterial activity of ZnO nanoparticles under ambient illumination - The effect of nanoparticle properties[J]. THIN SOLID FILMS,2013,542:368-372.

Ng, Y. H..,Leung, Y. H..,Liu, F. Z..,Ng, A. M. C..,Gao, M. H..,...&Chan, W. K..(2013).Antibacterial activity of ZnO nanoparticles under ambient illumination - The effect of nanoparticle properties.THIN SOLID FILMS,542,368-372.

Ng, Y. H.,et al."Antibacterial activity of ZnO nanoparticles under ambient illumination - The effect of nanoparticle properties".THIN SOLID FILMS 542(2013):368-372.