Molybdenum doped titanium dioxide photocatalytic coatings for use as hygienic sufaces: The effect of soiling on antimicrobial activity

L. Fisher, S. Ostovapour, P. Kelly, K.A. Whitehead, K. Cooke, Erna Storgårds, J. Verran (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)

Abstract

Titanium dioxide (TiO2) surfaces doped with molybdenum (Mo) were investigated to determine if their photocatalytic ability could enhance process hygiene in the brewery industry. Doping TiO2 with Mo showed a 5-log reduction in bacterial counts within 4 to 24 h and a 1-log reduction in yeast numbers within 72 h. The presence of a dilute brewery soil on the surface did not interfere with antimicrobial activity. The TiO2–M surface was also active in the dark, showing a 5-log reduction in bacteria within 4 to 24 h and a 1-log reduction in yeast numbers within 72 h, suggesting it could have a novel dual function, being antimicrobial and photocatalytic. The study suggests the TiO2–Mo coating could act as a secondary barrier in helping prevent the build-up of microbial contamination on surfaces within the brewery industry, in particular in between cleaning/disinfection regimes during long production runs.
Original languageEnglish
Pages (from-to)911-919
Number of pages8
JournalBiofouling
Volume30
Issue number8
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

Fingerprint

titanium dioxide
Molybdenum
antimicrobial activity
molybdenum
coatings
brewing industry
coating
Industry
anti-infective agents
Yeasts
Bacterial Load
Disinfection
Hygiene
yeast
Soil
yeasts
Bacteria
microbial contamination
industry
hygiene

Keywords

  • photochemistry
  • antimicrobial activity
  • breweries
  • coatings
  • catalysts
  • molybdenum
  • titanium dioxide

Cite this

Fisher, L. ; Ostovapour, S. ; Kelly, P. ; Whitehead, K.A. ; Cooke, K. ; Storgårds, Erna ; Verran, J. / Molybdenum doped titanium dioxide photocatalytic coatings for use as hygienic sufaces : The effect of soiling on antimicrobial activity. In: Biofouling. 2014 ; Vol. 30, No. 8. pp. 911-919.
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abstract = "Titanium dioxide (TiO2) surfaces doped with molybdenum (Mo) were investigated to determine if their photocatalytic ability could enhance process hygiene in the brewery industry. Doping TiO2 with Mo showed a 5-log reduction in bacterial counts within 4 to 24 h and a 1-log reduction in yeast numbers within 72 h. The presence of a dilute brewery soil on the surface did not interfere with antimicrobial activity. The TiO2–M surface was also active in the dark, showing a 5-log reduction in bacteria within 4 to 24 h and a 1-log reduction in yeast numbers within 72 h, suggesting it could have a novel dual function, being antimicrobial and photocatalytic. The study suggests the TiO2–Mo coating could act as a secondary barrier in helping prevent the build-up of microbial contamination on surfaces within the brewery industry, in particular in between cleaning/disinfection regimes during long production runs.",
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Fisher, L, Ostovapour, S, Kelly, P, Whitehead, KA, Cooke, K, Storgårds, E & Verran, J 2014, 'Molybdenum doped titanium dioxide photocatalytic coatings for use as hygienic sufaces: The effect of soiling on antimicrobial activity', Biofouling, vol. 30, no. 8, pp. 911-919. https://doi.org/10.1080/08927014.2014.939959

Molybdenum doped titanium dioxide photocatalytic coatings for use as hygienic sufaces : The effect of soiling on antimicrobial activity. / Fisher, L.; Ostovapour, S.; Kelly, P.; Whitehead, K.A.; Cooke, K.; Storgårds, Erna; Verran, J. (Corresponding Author).

In: Biofouling, Vol. 30, No. 8, 2014, p. 911-919.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Molybdenum doped titanium dioxide photocatalytic coatings for use as hygienic sufaces

T2 - The effect of soiling on antimicrobial activity

AU - Fisher, L.

AU - Ostovapour, S.

AU - Kelly, P.

AU - Whitehead, K.A.

AU - Cooke, K.

AU - Storgårds, Erna

AU - Verran, J.

PY - 2014

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AB - Titanium dioxide (TiO2) surfaces doped with molybdenum (Mo) were investigated to determine if their photocatalytic ability could enhance process hygiene in the brewery industry. Doping TiO2 with Mo showed a 5-log reduction in bacterial counts within 4 to 24 h and a 1-log reduction in yeast numbers within 72 h. The presence of a dilute brewery soil on the surface did not interfere with antimicrobial activity. The TiO2–M surface was also active in the dark, showing a 5-log reduction in bacteria within 4 to 24 h and a 1-log reduction in yeast numbers within 72 h, suggesting it could have a novel dual function, being antimicrobial and photocatalytic. The study suggests the TiO2–Mo coating could act as a secondary barrier in helping prevent the build-up of microbial contamination on surfaces within the brewery industry, in particular in between cleaning/disinfection regimes during long production runs.

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KW - antimicrobial activity

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KW - catalysts

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