27–28 May 2019
Fænø Park
Europe/Copenhagen timezone
Tilmeldingsfristen er den 10. maj!

Simulated Dynamics and Clustering of Colloidal Magnetic Nanoparticles

Not scheduled
15m
Fænø Park

Fænø Park

Oddevejen 8, 5500 Middelfart, Danmark Telefon: 63401906 WWW: sundogskov.dk
Contributed talk

Speakers

Mr Frederik Durhuus (Technical University of Denmark)Mr Lau Wandall (Technical University of Denmark)Mr Mathias Boisen (Technical University of Denmark)

Description

A promising bottom-up method for fabricating novel devices and structures is by magnetically guided self-assembly. To this end, precise models of magnetic particle interaction, in particular dipole-induced clustering and the properties of the aggregate structures, are necessary. We present a model of magnetic nanoparticle (MNP) interactions, implemented with a molecular dynamics algorithm, which simulates the time evolution and aggregation of colloidally suspended MNPs. Through small scale simulations, visualised with 3D animations, we give an overview of the mechanisms by which different cluster types form. We recognise three distinct clustering regimes : dissociated, linear and clustered. Based on large scale simulations, we link the appearance of these regimes to the radii of the MNPs magnetic layer and surfactant layer.

Primary authors

Mr Frederik Durhuus (Technical University of Denmark) Mr Lau Wandall (Technical University of Denmark) Mr Mathias Boisen (Technical University of Denmark)

Co-authors

Prof. Cathrine Frandsen (Technical University of Denmark) Mr Marco Beleggia (Technical University of Denmark)

Presentation materials

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