Antimicrobial Properties of Copper-Doped ZnO Coatings under Darkness and White Light Illumination | Zendy

Iman A. Hassan | Zendy; Sanjayan Sathasivam | Zendy; Sean P. Nair | Zendy; Claire J. Carmalt | Zendy

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Antimicrobial Properties of Copper-Doped ZnO Coatings under Darkness and White Light Illumination

Author(s) -

Iman A. Hassan,

Sanjayan Sathasivam,

Sean P. Nair,

Claire J. Carmalt

Publication year - 2017

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.7b00759

Subject(s) - antimicrobial , darkness , doping , copper , white light , materials science , escherichia coli , nanotechnology , optoelectronics , chemistry , microbiology and biotechnology , optics , metallurgy , biology , physics , biochemistry , gene

We report the first antimicrobial study of transparent and robust Cu-doped ZnO coatings that displayed potent antimicrobial activity that resulted in bacterial ( Escherichia coli ) reduction below detection limits within 6 h of illumination via a white light source that is found in hospital environments. The same bacterial reduction rate was observed even under darkness for 4.0 atom % Cu-doped ZnO films thus providing an efficient 24 h disinfection. All films were produced via a novel, inexpensive, and easily scalable route and were also thoroughly analyzed for their material properties.

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