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Journal of Chemistry
Volume 2013, Article ID 631421, 6 pages
http://dx.doi.org/10.1155/2013/631421
Review Article

Fluorescent DNA Stabilized Silver Nanoclusters as Biosensors

Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), CNB-CSIC-IMDEA Nanociencia Associated Unit “Unidad de Nanobiotecnología”, 28049 Madrid, Spain

Received 26 April 2013; Accepted 18 June 2013

Academic Editor: Eugen Stulz

Copyright © 2013 Alfonso Latorre et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

DNA stabilized fluorescent silver nanoclusters are promising materials, of which fluorescent properties can be exploited to develop sensors. Particularly, the presence of a DNA strand in the structure has promoted the development of gene sensors where one part of the sensor is able to recognize the target gene sequence. Moreover, since oligonucleotides can be designed to have binding properties (aptamers) a variety of sensors for proteins and cells have been developed using silver nanoclusters. In this review the applications of this material as sensors of different biomolecules are summarized.