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Mingling Electronic Chemical Sensors with Supramolecular Host-Guest Chemistry

[ Vol. 18 , Issue. 15 ]


Congzhi Zhu and Lei Fang   Pages 1957 - 1964 ( 8 )


Supramolecular host-guest chemistry allows sensitive and selective recognition of a certain substrate by using a rationally designed receptor. Such a molecular receptor can be incorporated into an electronic chemical sensor so that the anticipated host-guest binding event can be transduced directly into electric signals. In particular, chemiresistors and chemically sensitive field-effect transistors report the change of conductance/resistance of the active conducting materials upon the desired supramolecular binding event via varied mechanisms. This mini-review highlights the recent advances in the development of electronic sensors, in which the active conducting/ semiconducting materials are incorporated with specific supramolecular receptors. Depending on the nature of the active conducting layer, these devices can be categorized into carbon materials-based sensors and organic semiconductor-based sensors. At the end of this review, an outlook of the related field is provided and discussed.


Carbon nanotubes, chemiresistor, electronic sensor, field-effect transistor, host-guest interaction, molecular recognition, organic semiconductor, supramolecular chemistry.


, Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.

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