APPLYING QUANTUM DOTS TO DETERMINE FOOD COMPONENTS AND CONTAMINANTS

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APPLYING QUANTUM DOTS TO DETERMINE FOOD COMPONENTS AND CONTAMINANTS

Journal Title: Żywność. Nauka. Technologia. Jakość - Year 2014, Vol 21, Issue 3

Abstract

Quantum dots (QD) are semiconductor nanostructures of a diameter between 1 and 100 nm, capable of photoluminescence. In solutions, interactions occurring between the atoms on the surface of a quantum dot and the neighbouring molecules can significantly affect the photoluminescence of QD. Owing to this characteristic, quantum dots are utilized in analytical methods. Modified quantum dots are often used; their modification consists in coating their surface using molecules capable of interacting with an analyte. The use of quantum dots makes it possible to develop novel, sensitive, selective, and quick analytical methods. In the paper, some methods are described, which are used to determine saccharides, peptides, proteins, ascorbic acid, phenolic compounds, food contaminants, and undesirable substances. Furthermore, some mechanisms are depicted of the interaction between quantum dots and an analyte.

Authors and Affiliations

Krzysztof Dwiecki, Małgorzata Nogala-Kałucka

Keywords

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EP ID EP157968
DOI 0.15193/zntj/2014/94/005-013
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