Sensors 2009, 9(9), 7266-7286; doi:10.3390/s90907266

Semiconductor Quantum Dots in Chemical Sensors and Biosensors

Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete, Vassilika Voutes, 71003 Iraklion, Crete, Greece
* Author to whom correspondence should be addressed.
Received: 14 July 2009; in revised form: 3 September 2009 / Accepted: 8 September 2009 / Published: 10 September 2009
(This article belongs to the Special Issue Nanotechnological Advances in Biosensors)
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Abstract: Quantum dots are nanometre-scale semiconductor crystals with unique optical properties that are advantageous for the development of novel chemical sensors and biosensors. The surface chemistry of luminescent quantum dots has encouraged the development of multiple probes based on linked recognition molecules such as peptides, nucleic acids or small-molecule ligands. This review overviews the design of sensitive and selective nanoprobes, ranging from the type of target molecules to the optical transduction scheme. Representative examples of quantum dot-based optical sensors from this fast-moving field have been selected and are discussed towards the most promising directions for future research.
Keywords: semiconductor quantum dots; nanoassembly; optical sensors; photoluminescence

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MDPI and ACS Style

Frasco, M.F.; Chaniotakis, N. Semiconductor Quantum Dots in Chemical Sensors and Biosensors. Sensors 2009, 9, 7266-7286.

AMA Style

Frasco MF, Chaniotakis N. Semiconductor Quantum Dots in Chemical Sensors and Biosensors. Sensors. 2009; 9(9):7266-7286.

Chicago/Turabian Style

Frasco, Manuela F.; Chaniotakis, Nikos. 2009. "Semiconductor Quantum Dots in Chemical Sensors and Biosensors." Sensors 9, no. 9: 7266-7286.

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