Processes involved at the chemical interface of a saw chemosensor |
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| Affiliation: | 1. Surface Science Lab, Department of Chemical Engineering, University of Patras, Rion Patras 26504, Greece;2. Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion 70013, Greece;1. Center for Thermometry, Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea;2. Department of Nano Science & Technology, Sejong Polymer Research Center, Sejong University, Seoul 143-747, South Korea;1. Department of Psychological Sciences, Metropolitan State University of Denver, USA;2. JumpStart Autism Center, USA;1. State Key Laboratory of Industrial Control Technology, Institute of Cyber Systems and Control, Zhejiang University, Hangzhou, 310027, China;2. School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, China;3. Department of Chemical Engineering and Biotechnology, University of Cambridge, UK |
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| Abstract: | An overview is given of interactions occurring at the gas-selective surface (‘chemical interface’) of a SAW (Surface Acoustic Wave) chemosensor. Coordination chemistry as an intermediate between adsorption and chemisorption seems to offer many attractive possibilities in the search for and design of selective and reversible chemical interfaces.Both the surface structure and the bonding of the chemical interface to the sensor are likely to be important with respect to the sensor stability, sensitivity and response time. It is expected that covalently-bonded chemical interfaces should be applied in preference to physically attached or entrapped coatings. |
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