New materials for electrochemical sensing V: Nanoparticles for DNA labeling

A. Merkoçi, M. Aldavert, S. Marín, S. Alegret

Research output: Contribution to journalArticleResearchpeer-review

148 Citations (Scopus)


We present recent trends and challenges in the use of nanoparticles as DNA labels in electrochemical detection systems. We discuss nanoparticle synthesis procedures and methods for attaching biological molecules that enable their application in genosensors. We also discuss typical electrochemical procedures based on gold nanoparticles and quantum dots (QDs), along with QD carriers, such as carbon nanotube or polystyrene beads. High sensitivity and selectivity, simultaneous detection of various DNA sequences, and cost-efficient detection are advantages that seem to come using these novel labels in DNA electrochemical detection schemes. © 2004 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)341-349
JournalTrAC - Trends in Analytical Chemistry
Issue number4
Publication statusPublished - 1 Jan 2005


  • DNA
  • Electrochemical sensing
  • Genosensors
  • Nanoparticles
  • QD
  • Quantum dots
  • Semiconductors
  • Stripping potentiometry
  • Stripping voltammetry


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