Descamps E, Nguyen K, Bouchain-Gautier C, Filoramo A, Goux-Capes L, Goffman M, Bourgoin JP, Mailley P, Livache T. Versatile functionalization of nanoelectrodes by oligonucleotides via pyrrole electrochemistry.
Chemphyschem 2011;
11:3541-6. [PMID:
20973021 DOI:
10.1002/cphc.201000101]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Surface modification at the nanometer scale is a challenge for the future of molecular electronics. In particular, the precise anchoring and electrical addressing of biological scaffolds such as complex DNA nanonetworks is of importance for generating bio-directed assemblies of nano-objects for nanocircuit purposes. Herein, we consider the individual modification of nanoelectrodes with different oligonucleotide sequences by an electrochemically driven co-polymerization process of pyrrole and modified oligonucleotide sequences bearing pyrrole monomers. We demonstrate that this one-step technique presents the advantages of simplicity, localization of surface modification, mechanical, biological and chemical stability of the coatings, and high lateral resolution.
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