Chemosensors in environmental monitoring: challenges in ruggedness and selectivity |
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Authors: | Peter A Lieberzeit Franz L Dickert |
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Institution: | (1) Department of Analytical Chemistry and Food Chemistry, University of Vienna, Waehringer Strasse 38, 1090 Vienna, Austria |
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Abstract: | Environmental analysis is a potential key application for chemical sensors owing to their inherent ability to detect analytes
on-line and in real time in distributed systems. Operating a chemosensor in a natural environment poses substantial challenges
in terms of ruggedness, long-term stability and calibration. This article highlights current trends of achieving both the
necessary selectivity and ruggedness: one way is deploying sensor arrays consisting of robust broadband sensors and extracting
information via chemometrics. If using only a single sensor is desired, molecularly imprinted polymers offer a straightforward
way for designing artificial recognition materials. Molecularly imprinted polymers can be utilized in real-life environments,
such as water and air, aiming at detecting analytes ranging from small molecules to entire cells.
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Keywords: | Environmental monitoring In situ sensing Artificial recognition materials Real-life application Molecular imprinting |
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