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Titolo:
Direct electrochemical transduction of biorecognition at viologen-containing monolayer surfaces
Autore:
Yan, JC; Tender, LM; Hampton, PD; Lopez, GP;
Indirizzi:
Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA Univ New Mexico Albuquerque NM USA 87131 Chem, Albuquerque, NM 87131 USA Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA Univ NewMexico Albuquerque NM USA 87131 Engn, Albuquerque, NM 87131 USA
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 37, volume: 105, anno: 2001,
pagine: 8905 - 8910
SICI:
1520-6106(20010920)105:37<8905:DETOBA>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELF-ASSEMBLED MONOLAYERS; ANTIGEN-ANTIBODY ASSOCIATION; GOLD ELECTRODES; MOLECULAR RECOGNITION; IMMUNOSENSOR ELECTRODES; GLUCOSE-OXIDASE; REDOX; ADSORPTION; BIOSENSORS; FUNCTIONALIZATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Hampton, PD Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA Univ NewMexico Albuquerque NM USA 87131 uerque, NM 87131 USA
Citazione:
J.C. Yan et al., "Direct electrochemical transduction of biorecognition at viologen-containing monolayer surfaces", J PHYS CH B, 105(37), 2001, pp. 8905-8910

Abstract

We describe a new, direct electrochemical means of detecting biorecognition at modified electrodes. Ternary self-assembled monolayers (SAMs) were formed on gold electrodes by coadsorption of biotin, viologen, and oligo(ethylene glycol)-functionalized alkanethiols. These SAMs exhibit electroactivityof the viologen moieties, biospecificity of the biotin moieties, and inhibition of nonspecific adsorption by the oligo(ethylene glycol) moieties. Changes in electrochemical behavior of the immobilized viologen observed by cyclic voltammetry accompanying biospecific adsorption of an anti-biotin antibody to biotin can be used to transduce biorecognition on the surface rapidly and reproducibly. Surface plasmon resonance measurements are consistent with the electrochemical responses that result from the partially reversible adsorption of the antibody to the SAM surface.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/12/19 alle ore 15:09:45