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Revista mexicana de física

Print version ISSN 0035-001X

Rev. mex. fis. vol.52  suppl.2 México Feb. 2006

 

Bionanostructures and their integration into electrochemical sensing system. A review of DNA applications

 

A. Merkoçi*, M. del Valle, and S. Alegret

 

Grup de Sensors i Biosensors, Departament de Química, Universitat Autónoma de Barcelona 08193 Bellaterra, Catalonia, Spain

 

* Author for correspondence:
Tel: +34 935811976.
e–mail:
arben.merkoci@uab.es *

 

Recibido el 27 de octubre de 2004
Aceptado el 25 de mayo de 2005

 

Abstract

Current progress in applying nanoparticles as labels in electrochemical DNA detection systems will be shown. Some aspects of the synthesis of nanoparticles are described, especially the applications of gold nanoparticles or QDs as quantitation tags or electrochemical hosts for DNA detection so as to design what are known as 'chips in solution'.

Keywords: Quantum dots; gold nanoparticles; DNA, electrochemical detection; stripping voltammetry; sensors.

 

Resumen

Se demuestra el progreso en la aplicación de nanopartíeulas como marcas en sistemas de detección electroquímica de ADN. Se describen algunos aspectos de síntesis y más en detalles los de aplicación de nanopartíeulas de oro o de quantum dots como elementos de cuantificación o de identificación para el análisis de ADN para el diseño de los llamados 'chips' en solución.

Descriptores: Puntos cuanticos; nanopartículas de oro; DNA, detección electroquímica; voltametria de redisolución; sensores.

 

PACS: 68.65.Hb; 81.07.2b; 82.45.Yz; 82.45.Rr; 82.45.Tv; 87.14.Gg; 07.07.Df; 82.47.Rs

 

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Acknowledgments

This work was financially supported from MEC (Madrid) (Projects BIO2004–02776, MAT2004–05164), by the Spanish foundation "Ramón Areces" (project 'Bionanosensores') and the "Ramón y Cajal" program of the Ministry of Science and Technology (Madrid), which supports Dr.Arben Merkoçi.

 

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