## Ultracentrifugation Techniques for the Ordering of Nanoparticles

2021
Journal article
Published
##### Published in
Nanomaterials ; 11 (2021), 2. - 333. - MDPI. - eISSN 2079-4991
##### Abstract
A centrifugal field can provide an external force for the ordering of nanoparticles. Especially with the knowledge from in-situ characterization by analytical (ultra)centrifugation, nanoparticle ordering can be rationally realized in preparative (ultra)centrifugation. This review summarizes the work back to the 1990s, where intuitive use of centrifugation was achieved for the fabrication of colloidal crystals to the very recent work where analytical (ultra)centrifugation is employed to tailor-make concentration gradients for advanced materials. This review is divided into three main parts. In the introduction part, the history of ordering microbeads in gravity is discussed and with the size of particles reduced to nanometers, a centrifugal field is necessary. In the next part, the research on the ordering of nanoparticles in analytical and preparative centrifugation in recent decades is described. In the last part, the applications of the functional materials, fabricated from centrifugation-induced nanoparticle superstructures are briefly discussed.
540 Chemistry
##### Cite This
ISO 690XU, Xufeng, Helmut CÖLFEN, 2021. Ultracentrifugation Techniques for the Ordering of Nanoparticles. In: Nanomaterials. MDPI. 11(2), 333. eISSN 2079-4991. Available under: doi: 10.3390/nano11020333
BibTex
@article{Xu2021-01-27Ultra-52867,
year={2021},
doi={10.3390/nano11020333},
title={Ultracentrifugation Techniques for the Ordering of Nanoparticles},
number={2},
volume={11},
journal={Nanomaterials},
author={Xu, Xufeng and Cölfen, Helmut},
note={Article Number: 333}
}

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