dc.contributor.authorZhong, Weixian.
dc.date.accessioned2009-05-27T03:59:35Z
dc.date.available2009-05-27T03:59:35Z
dc.date.copyright2009en_US
dc.date.issued2009
dc.identifier.urihttp://hdl.handle.net/10356/16571
dc.description.abstractIn the present work, aluminium/zinc oxide (Al/ZnO) and copper/zinc (Cu/ZnO) oxide composite powders of various ratios were mixed by ball-milling. The zinc oxide was formed from wet chemical synthesis. The powders were deposited on 2 different substrates, Al 6061 and glass using Cold Spray. The anti-bacterial effects of the original feedstock powders and the Al/ZnO and Cu/ZnO coatings were evaluated by the Standard (Viable) Plate Count method and Kirby-Bauer diffusion assay. Escherichia Coli was used as the model bacteria. The results indicated that the anti-bacterial effect of all the powders increased with the proportion of ZnO. The coatings retained the anti-bacterial properties of the original feedstock powders. This project has showed that it is possible to coat bioactive, anti-bacterial powders onto various substrates while retaining their anti-bacterial properties. This could be applied in applications requiring an anti-bacterial surface. Keywords: Cold Spray, aluminium/zinc oxide, copper/zinc oxide, ball milling, wet chemical synthesis, Standard (Viable) Plate Count method, Kirby-Bauer diffusion assay, Escherichia Coli, anti-bacterialen_US
dc.format.extent92 p.en_US
dc.language.isoenen_US
dc.rightsNanyang Technological University
dc.subjectDRNTU::Engineering::Chemical engineering::Biotechnological productionen_US
dc.titleAntibacterial properties of cold sprayed ZnO nanopowder and composite coatingsen_US
dc.typeFinal Year Project (FYP)en_US
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.description.degreeBachelor of Engineering (Chemical and Biomolecular Engineering)en_US
dc.contributor.organizationST Kineticsen_US
dc.contributor.supervisor2Kim Donghwan, Richieen_US


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