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Issue 27, 2016
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A lock-in-based method to examine the thermal signatures of magnetic nanoparticles in the liquid, solid and aggregated states

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Abstract

We propose a new methodology based on lock-in thermography to study and quantify the heating power of magnetic nanoparticles. Superparamagnetic iron oxide nanoparticles exposed to a modulated alternating magnetic field were used as model materials to demonstrate the potency of the system. Both quantitative and qualitative information on their respective heating power was extracted at high thermal resolutions under increasingly complex conditions, including nanoparticles in the liquid, solid and aggregated states. Compared to conventional techniques, this approach offers a fast, sensitive and non-intrusive alternative to investigate multiple and dilute specimens simultaneously, which is essential for optimizing and accelerating screening procedures and comparative studies.

Graphical abstract: A lock-in-based method to examine the thermal signatures of magnetic nanoparticles in the liquid, solid and aggregated states

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Publication details

The article was received on 11 Mar 2016, accepted on 10 Jun 2016 and first published on 13 Jun 2016


Article type: Paper
DOI: 10.1039/C6NR02066F
Citation: Nanoscale, 2016,8, 13321-13332
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    A lock-in-based method to examine the thermal signatures of magnetic nanoparticles in the liquid, solid and aggregated states

    C. A. Monnier, M. Lattuada, D. Burnand, F. Crippa, J. C. Martinez-Garcia, A. M. Hirt, B. Rothen-Rutishauser, M. Bonmarin and A. Petri-Fink, Nanoscale, 2016, 8, 13321
    DOI: 10.1039/C6NR02066F

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