| Texto completo | |
| Autor(es): |
Melo, Antonio F. A. A.
[1]
;
Carvalho, Vitor A. N.
[1]
;
Pagnoncelli, Kamila C.
[1]
;
Crespilho, Frank N.
[1]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
Número total de Afiliações: 1
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Electrochemistry Communications; v. 30, p. 79-82, MAY 2013. |
| Citações Web of Science: | 7 |
| Resumo | |
In this work we demonstrated the micromanipulation of a single magnetic microparticle (Fe3O4) modified with Prussian blue (PB) for use in magnetic-switchable electrochemistry. A single Fe3O4-PB microparticle with 120 mu m was isolated in an electrochemical microcell (20 mu L), in which a fine control of PB electrochemical process on carbon electrode ((sic)=4.0 mm) was obtained. For cyclic voltammetty, redox processes attributed to PB/PW (Prussian blue/Prussian white) one electron redox couple were observed, however the capacitive currents were very high. On the other hand, by using differential pulse voltammetry, a maximum faradaic current for anodic peak of 200 nA cm(-2) at 0.06 V was observed. Several and high stable chronoamperograms were obtained by ``switch on{''} and ``switch off' magnetic commutative states for a single microparticle, showing that the system developed here can be very promising for application in electrochemistry. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved. (AU) | |
| Processo FAPESP: | 11/01541-0 - Desenvolvimento de bioanodos constituídos por glicose oxidase e frutose desidrogenase e suas formas recombinantes para aplicação em protótipos de biocélulas a combustível enzimáticas: geração de energia a partir da biomassa (cana-de-açúcar) |
| Beneficiário: | Frank Nelson Crespilho |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |