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Title page for etd-0723106-030406


URN etd-0723106-030406 Statistics This thesis had been viewed 2151 times. Download 11 times.
Author Meng-En Chao
Author's Email Address No Public.
Department Bioengineering
Year 2005 Semester 2
Degree Master Type of Document Master's Thesis
Language English Page Count 46
Title STUDY ON PHOTOINDUCED BACTERICIDAL KINETICS ON TITANIUM OXIDE CONTAINED COATING
Keyword
  • Bactericidal efficacy
  • Titanium dioxide
  •  Photocatalysts
  •  Photocatalysts
  • Titanium dioxide
  • Bactericidal efficacy
  • Abstract Titanium dioxide( TiO2) photocatalysts generate free radicals when illuminated by lights having wavelength shorter than 385 nm. These radicals are able to attack bacteria, and may therefore be efficacious in reducing bacterial pollution. In this study, a highly sensitive method for the evaluation of the photoinduced disinfection of a commercial TiO2-contained coating under a ultraviolet(UV) light irradiation was developed. Suspension of Enterococcus faecium, Staphylococcus aureus, Pseudomonas aeruginosa, E.coli, or Candida albicans was put on a surface containing TiO2 and was overlaid with a coverglass. During the UV irradiation for up to 60 min the decay of microbial viability nearly followed the first order kinetics. In the present work, we demonstrate a novel method for the evaluation of bactericidal efficacy of photocatalysts.
    Advisor Committee
  • Dey-Chyi Sheu - advisor
  • none - co-chair
  • none - co-chair
  • Files indicate in-campus access only
    Date of Defense 2006-07-20 Date of Submission 2006-07-24


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