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Publication details

Document type
Journal articles

Document subtype
Full paper

Title
Conducting polymers with attached platinum nanoparticles towards the development of DNA biosensors

Participants in the publication
Virginia C Ferreira (Author)
Dep. Química e Bioquímica
 Dep. Química e Bioquímica
 CQB
 A. I Melato (Author)
A. F Silva (Author)
L. M Abrantes (Author)

Summary
Based on the strong interaction of noble metal particles with the sulphur atoms of thiophene derivatives,platinum nanoparticles (Pt-NPs)-dispersed poly(3-methylthiophene) (P(3-MeTh)) thin films have been successfully prepared. Evidence of the Pt-NPs confinement in the polymer was provided by the electrocatalytic activity of the modified electrodes towards the dissolved oxygen reduction reaction. The efficient immobilization by self-assembly of thiolated oligonucleotides on the embedded Pt-NPs could be monitored by electrochemical quartz crystal microbalance (EQCM) as well as the subsequent hybridization with the complementary sequence. The good conducting properties and high surface area of P(3-MeTh)/Pt-NPs modified electrodes also allowed the detection of both processes by cyclic voltammetry.

Date of Submisson/Request
2011-05-30
Date of Acceptance
2011-06-17
Date of Publication
2011-06-25

Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Where published
ELECTROCHEMISTRY COMMUNICATIONS

Publication Identifiers
ISSN - 1388-2481

Volume
13

Starting page
993
Last page
996

Document Identifiers
DOI - https://doi.org/10.1016/j.elecom.2011.06.021

Rankings
SCIMAGO Q1 (2016) - 1.626 - Electrochemistry
SCOPUS Q1 (2011) - 2.14 - Electrochemistry
Web Of Science Q1 (2017) - 4.66 - ELECTROCHEMISTRY - SCIE

Keywords
Piezoelectric detection Hybridization Poly(3-methylthiophene) Electropolymerization Platinum nanoparticles Thiolated oligonucleotides

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APA
Virginia C Ferreira, A. I Melato, A. F Silva, L. M Abrantes, (2011). Conducting polymers with attached platinum nanoparticles towards the development of DNA biosensors. ELECTROCHEMISTRY COMMUNICATIONS, 13, 993-996. ISSN 1388-2481. eISSN .

IEEE
Virginia C Ferreira, A. I Melato, A. F Silva, L. M Abrantes, "Conducting polymers with attached platinum nanoparticles towards the development of DNA biosensors" in ELECTROCHEMISTRY COMMUNICATIONS, vol. 13, pp. 993-996, 2011. 10.1016/j.elecom.2011.06.021

BIBTEX
@article{25034, author = {Virginia C Ferreira and A. I Melato and A. F Silva and L. M Abrantes}, title = {Conducting polymers with attached platinum nanoparticles towards the development of DNA biosensors}, journal = {ELECTROCHEMISTRY COMMUNICATIONS}, year = 2011, pages = {993-996}, volume = 13 }