TOWARDS A CONDUCTING POLYMER-BASED ELECTRONIC NOSE AND ELECTRONIC TONGUE

An integrated system has been designed for detection of gas, volatile liquid and liquids based on the concept of an electronic nose and an electronic tongue. The detection mechanism relies on the changes in electrical resistance that occurs when an array of microelectrodes, coated with conducting polymers, is exposed to different samples . The data collected from such resistance changes has been processed by an artificial intelligence trained computer in conjunction with pattern recognition data analysis to identify and quantify the chemicals of interests. Detection of pH and sodium chloride was considered as case studies for the electronic nose and tongue applications respectively. This integrated artificial intelligencelelectronic nose and tongue can be further developed to detect colour (electronic eye) for display device applications.

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