Chemosensors piezoelectric

The present chapter critically encompasses developments and achievements reached in MIP-based selective sensing combined with optical, piezoelectric (PZ) and electrochemical signal transduction. General procedures of MIP preparation along with methods of MIP immobilization for chemosensor fabrication are presented. Protocols of analyte determination involving measurement complexities, like template presence or absence, have been addressed in detail. Moreover, analytical parameters, such as detectability, sensitivity, selectivity, linear dynamic... 

The electronics, information and communication roadmap includes piezoelectrics, ceramic MEMS, ceramic packaging materials for IGs, ceramic thermoelectric converters, chemosensors and biosensors, lasers and adaptive optics, and ultrahigh integration-level semiconductor chips (Figure 12.3, left). 

Sensorics, also known as the electronic nose, represent another interesting technology where polymers are used because synthetic chemosensors can only detect a molecule when it is dissolved in a polymeric layer present in the sensor. The technology involves the use of a quartz crystal microbalance device to detect by volume and analyse surface waves on piezoelectric materials. Swelling detection on the basis of variations in conductivity also forms part of the technology. The role of polymers in this technology was discussed in an article by Banhegyi [3]. 

A. Pietrzyk, S. Suriyanarayanan, W. Kutner, E. Mahgaspe, M.E. Zandler and F. D Souza, Molecularly imprinted poly[bis(2,2 -bithienyl)methane] film with built-in molecular recognition sites for a piezoelectric microgravimetry chemosensor for selective determination of dopamine. Bioelectrochemistry, 80 (1) 62-72,2010. 

Noworyta K, Kutner W, Wijesinghe CA, Srour SG, D Souza F (2012) Nicotine, cotinine, and myosmine determination using polymer films of tailor-designed zinc porphyrins as recognition units for piezoelectric microgravimetry chemosensors. Anal Chem 84 2154—2163... 

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