Issue 10, 2012

Non-linear magnetic behavior around zero field of an assembly of superparamagnetic nanoparticles

Abstract

The MIAplex® device is a miniaturized detector, devoted to the high sensitive detection of superparamagnetic nanoprobes for multiparametric immunoassays. It measures a signal corresponding to the second derivative of the magnetization around zero field. Like any new technology, the real success of the MIAplex® detector can only be exploited through a deep understanding of the magnetic signature. In this letter, we study the magnetic behavior around zero-field of diluted lab-made and commercial ferrofluids by comparing together conventional SQUID magnetization and MIAplex® signature.

Graphical abstract: Non-linear magnetic behavior around zero field of an assembly of superparamagnetic nanoparticles

Supplementary files

Article information

Article type
Communication
Submitted
04 Nov 2011
Accepted
09 Mar 2012
First published
23 Mar 2012

Analyst, 2012,137, 2304-2308

Non-linear magnetic behavior around zero field of an assembly of superparamagnetic nanoparticles

C. de Montferrand, Y. Lalatonne, D. Bonnin, L. Motte and P. Monod, Analyst, 2012, 137, 2304 DOI: 10.1039/C2AN16060A

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