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Molecules with multiple personalities: how switchable materials could revolutionise chemical sensing
Benito-Lopez, Fernando; Byrne, Robert; Wu, Yanzhe; Nolan, Lorraine; Kim, Jung Ho; Lau, King-Tong; Wallace, Gordon; Diamond, Dermot
Worldwide, the demand for sensing devices that can conform with the requirements of large-scale wireless sensor network (WSN) deployments is rising exponentially. Typically, sensors should be very low cost, low power (essentially self-sustaining), yet very rugged and reliable. At present, functioning WSN deployments involve physical transducers only, such as thermistors, accelerometers, photodetectors, or flow meters, to monitor quantities like temperature, movement, light level and liquid level/flow. Remote, widely distributed monitoring of molecular targets remains relatively unexplored, except in the case of targets that can be detected directly using ‘non-contact’ techniques like spectroscopy. This paper will address the issues inhibiting the close integration of chemical sensing with WSNs and suggest strategies based on fundamental materials science that may offer routes to new sensing surfaces that can switch between different modes of behaviour (e.g. active-passive, expand-contract).
Keyword(s): Analytical chemistry; Chemical detectors; Electrochemistry; Organic chemistry; Chemistry; microfluidics, biomimetics, polymer actuators, molecular photoswitches, stimulus-responsive polymers
Publication Date:
Type: Other
Peer-Reviewed: Unknown
Language(s): English
Institution: Dublin City University
Citation(s): Benito-Lopez, Fernando ORCID: 0000-0003-0699-5507 <>, Byrne, Robert, Wu, Yanzhe, Nolan, Lorraine, Kim, Jung Ho, Lau, King-Tong ORCID: 0000-0001-7818-7010 <>, Wallace, Gordon and Diamond, Dermot ORCID: 0000-0003-2944-4839 <> (2009) Molecules with multiple personalities: how switchable materials could revolutionise chemical sensing. Electrochemical Society Transactions, 19 (6). ISSN 1938-6737
Publisher(s): Electrochemical Society
File Format(s): application/pdf
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First Indexed: 2009-11-05 02:01:20 Last Updated: 2019-02-09 07:00:03