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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Single microparticle applied in magnetic-switchable electrochemistry

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Author(s):
Melo, Antonio F. A. A. [1] ; Carvalho, Vitor A. N. [1] ; Pagnoncelli, Kamila C. [1] ; Crespilho, Frank N. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Electrochemistry Communications; v. 30, p. 79-82, MAY 2013.
Web of Science Citations: 7
Abstract

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)

FAPESP's process: 11/01541-0 - Development of bioanodes composed by glucose oxidase and fructose dehydrogenase and its recombinant structures for aplication in prototype of biofuel cell: power generation from biomass (sugar cane)
Grantee:Frank Nelson Crespilho
Support Opportunities: Regular Research Grants