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Royal Society of Chemistry, Physical Chemistry Chemical Physics, 17(16), p. 8012-8018, 2014

DOI: 10.1039/c4cp00263f

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Magnetically controlled single-nanoparticle detection via particle-electrode collisions

Journal article published in 2014 by Germano P. Santos, Antonio F. A. A. Melo ORCID, Frank N. Crespilho ORCID
This paper is available in a repository.
This paper is available in a repository.

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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.