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Coatings 2018, 8(1), 41; doi:10.3390/coatings8010041

Antimicrobial Double-Layer Coating Prepared from Pure or Doped-Titanium Dioxide and Binders

Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 600 E. Mermaid Lane, Wyndmoor, PA 19038, USA
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, No. 399 Binshuixi Road, Xiqing District, Tianjin 300387, China
National Center of Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, 1815 N. University Street, Peoria, IL 61604, USA
Author to whom correspondence should be addressed.
Received: 27 October 2017 / Revised: 26 December 2017 / Accepted: 17 January 2018 / Published: 20 January 2018
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Fruit and vegetable containers with microbe-free surfaces can be made by coating with titanium dioxide (TiO2) particles or nonmetal (C, N, B, F) doped-TiO2 particles, using wear resistant polymers, such as zein, and paint, as the binders and to form a continuous binding phase. The doped-TiO2 powders absorb visible light radiation, and thus possess a higher antibacterial effect than non-modified TiO2 particles in environmental conditions. The study also presents a double-layer coating to use less TiO2 particles in coating, while achieving higher antimicrobial activity. Containers with microbe-free surfaces can stop cross-contamination from infected workers or spoiled/decayed/contaminated fruits or vegetables, and thus are expected to be able to reduce the risk from microbiological contamination of fruits and vegetables during harvest in fields, and postharvest storage or transportation. View Full-Text
Keywords: microbe-free surface; nonmetal-doped titanium dioxide; produce microbe-free surface; nonmetal-doped titanium dioxide; produce

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, R.; Jin, T.Z.; Liu, Z.; Liu, L. Antimicrobial Double-Layer Coating Prepared from Pure or Doped-Titanium Dioxide and Binders. Coatings 2018, 8, 41.

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