 | Clean Technology 2008
Bio Energy, Renewables, Green Building, Smart Grid, Storage, and Water
Chapter 5: Fuel Cell & Hydrogen Technologies |
| | Protective Sensor Coatings for High-Throughput Screening of Hydrogen-Producing Microbes | | Authors: | H. Pryce Lewis | | Affilation: | GVD Corporation, US | | Pages: | 316 - 318 | | Keywords: | hydrogen, hydrogen production, microbe, assay, NREL, chemochromic, sensor, PTFE, photobiological, high-throughput screening | | Abstract: | Microbe-based hydrogen production is a potentially cost-effective, non-polluting approach to the production of hydrogen. Research efforts are underway to identify, isolate, and enhance microbial strains which facilitate direct sunlight-to-hydrogen conversion. These efforts are hampered by a lack of adequate instruments to rapidly detect and pinpoint hydrogen producers. There is a need for assays which provide sufficient sensitivity, short response times, scalability, and compatibility with high-throughput methodologies to allow for rapid screening of microbe colonies. GVD Corporation is assisting the National Renewable Energy Laboratory (NREL) in the development of a multilayer chemochromic sensor that will identify hydrogen producing microbes. GVD’s proprietary solvent-free polytetrafluoroethylene (PTFE) coatings allow H2 gas to reach the sensor’s catalyst layer but prevent atmospheric contaminants from doing so. PTFE-coated assay plates survive the warm, wet conditions of multi-month testing and are able to pinpoint hydrogen-producing organisms exactly as intended. Later improvements to the manufacturing process will allow the technology to be adapted to other sensor markets, most notably safety sensors for fuel cell applications |  | This paper is available to CTSI members in PDF© format. | | ISBN: | 1-4200-8502-0 |
| Pages: | 724 |
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