State Water Resources Research Institute Program

Project Id: 2010KY139B
Title: The carboxylic acid-bound iodine layer - towards an anti-fouling coating for water sensors and water treatment facilities
Project Type: Research
Start Date: 3/01/2010
End Date: 2/28/2011
Congressional District: KY Sixth
Focus Categories: Methods, Water Quality
Keywords: biofouling, silane film, surface chemistry, sensors
Principal Investigator: Cai, Yuguang (University of Kentucky)
Federal Funds: $ 4,999
Non-Federal Matching Funds: $ 10,043
Abstract: We propose a novel approach to address biofouling problems that employs an anti-bacterial silane film, which can be coated on water-contact surfaces through self-assembly chemistry. The film will contain surface-bound iodine, which inhibits microorganisms. Silane film can grow on hydrophilic surfaces so most metal and inorganic surfaces can be coated with silane films through a self-assembly process. Polymer or plastic surfaces can also be treated with oxygen plasma, yielding a hydrophilic COOH-terminated surface, which can be used to directly bind iodine or as a substrate for silane film growth. In order to maintain a long-term anti-fouling effect, prolonged soaking in water should not leach the surface-bound iodine away. We plan to use silane film on a silicon wafer as a model system to study how firmly iodine can be held against water leaching.

Progress/Completion Report, 2010, PDF

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