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Nanoscale Research Letters

, 8:381

First Online: 08 September 2013Received: 07 August 2013Accepted: 30 August 2013


Here we provide a complete review on the use of dynamic light scattering DLS to study the size distribution and colloidal stability of magnetic nanoparticles MNPs. The mathematical analysis involved in obtaining size information from the correlation function and the calculation of Z-average are introduced. Contributions from various variables, such as surface coating, size differences, and concentration of particles, are elaborated within the context of measurement data. Comparison with other sizing techniques, such as transmission electron microscopy and dark-field microscopy, revealed both the advantages and disadvantages of DLS in measuring the size of magnetic nanoparticles. The self-assembly process of MNP with anisotropic structure can also be monitored effectively by DLS.

KeywordsDynamic light scattering Magnetic nanoparticles Colloidal stability Surface functionalization Review Electronic supplementary materialThe online version of this article doi:10.1186-1556-276X-8-381 contains supplementary material, which is available to authorized users.

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Author: JitKang Lim - Swee Pin Yeap - Hui Xin Che - Siew Chun Low


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