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Journal of Biomedical Optics • Open Access

Analytical strategies based on quantum dots for heavy metal ions detection
Author(s): Margarita Vázquez-González; Carolina Carrillo-Carrion

Paper Abstract

Heavy metal contamination is one of the major concerns to human health because these substances are toxic and retained by the ecological system. Therefore, in recent years, there has been a pressing need for fast and reliable methods for the analysis of heavy metal ions in environmental and biological samples. Quantum dots (QDs) have facilitated the development of sensitive sensors over the past decade, due to their unique photophysical properties, versatile surface chemistry and ligand binding ability, and the possibility of the encapsulation in different materials or attachment to different functional materials, while retaining their native luminescence property. This paper comments on different sensing strategies with QD for the most toxic heavy metal ions (i.e., cadmium, Cd2+; mercury, Hg2+; and lead, Pb2+). Finally, the challenges and outlook for the QD-based sensors for heavy metals ions are discussed.

Paper Details

Date Published: 22 May 2014
PDF: 13 pages
J. Biomed. Opt. 19(10) 101503 doi: 10.1117/1.JBO.19.10.101503
Published in: Journal of Biomedical Optics Volume 19, Issue 10
Show Author Affiliations
Margarita Vázquez-González, Univ. de Santiago de Compostela (Spain)
Philipps-Univ. Marburg (Germany)
Carolina Carrillo-Carrion, Philipps-Univ. Marburg (Germany)

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