Issue 17, 2014

Magnetically controlled single-nanoparticle detection via particle–electrode collisions

Abstract

This paper reports the magnetic control of nanoparticle collisions on gold ultramicroelectrode surface. Magnetite nanoparticles with diameters of 10 nm and modified with Prussian blue (Fe3O4-NPs-PB) were directed by gravitational force on the electrode surface, and spikes in current–time transients were observed. By modulating a magnetic field parallel to the electrode surface, the number of nanoparticle collisions and the nanoparticle positions could be controlled.

Graphical abstract: Magnetically controlled single-nanoparticle detection via particle–electrode collisions

Supplementary files

Article information

Article type
Paper
Submitted
17 Jan 2014
Accepted
09 Mar 2014
First published
10 Mar 2014

Phys. Chem. Chem. Phys., 2014,16, 8012-8018

Author version available

Magnetically controlled single-nanoparticle detection via particle–electrode collisions

G. P. Santos, A. F. A. A. Melo and F. N. Crespilho, Phys. Chem. Chem. Phys., 2014, 16, 8012 DOI: 10.1039/C4CP00263F

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