Journal
CHEMICAL SOCIETY REVIEWS
Volume 44, Issue 13, Pages 4275-4289Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cs00400k
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Funding
- Italian Ministery of Education, University and Research [PRIN 2010CX2TLM]
- Universite Franco-Italienne
- University of Bologna
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Semiconductor quantum dots (QDs) are inorganic nanoparticles that exhibit unique size-dependent optical and electronic properties; in particular, they are strongly luminescent. Their surface can be chemically modified, by either covalent or non-covalent approaches, in order to interface them with molecular units endowed with specific physical and chemical properties. Photoinduced electron-and energy-transfer processes between quantum dots and attached molecular species offer versatile strategies to modulate the photophysical properties of these nanoassemblies in response to a chemical stimulation. Hence, QD-molecule conjugates are appealing platforms for developing luminescent sensors according to a modular design. In this review we discuss the principles underlying the rational construction of this kind of multicomponent species, and we illustrate selected examples of luminescent QD-based sensors taken from the recent literature.
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