Layering of bidisperse charged nanoparticles in sedimentation

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2020
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Biesheuvel, P. Maarten
Spruijt, Evan
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Soft Matter. Royal Society of Chemistry (RSC). 2020, 16(20), pp. 4718-4722. ISSN 1744-683X. eISSN 1744-6848. Available under: doi: 10.1039/d0sm00588f
Zusammenfassung

Bidisperse mixtures of charged nanoparticles form separate layers upon centrifugation as a result of minimization of the system's free energy in sedimentation-diffusion equilibrium. Different factors were investigated experimentally for their effects on the layering, and are supported by theoretical calculations of the full sedimentation profiles. Surprisingly, lighter/smaller nanoparticles can even sink below heavier/larger ones when the particle surface charge is carefully tuned. This study provides deeper insights into the control of layering in polydisperse particle mixtures during sedimentation.

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540 Chemie
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ISO 690XU, Xufeng, P. Maarten BIESHEUVEL, Helmut CÖLFEN, Evan SPRUIJT, 2020. Layering of bidisperse charged nanoparticles in sedimentation. In: Soft Matter. Royal Society of Chemistry (RSC). 2020, 16(20), pp. 4718-4722. ISSN 1744-683X. eISSN 1744-6848. Available under: doi: 10.1039/d0sm00588f
BibTex
@article{Xu2020-05-28Layer-49951,
  year={2020},
  doi={10.1039/d0sm00588f},
  title={Layering of bidisperse charged nanoparticles in sedimentation},
  number={20},
  volume={16},
  issn={1744-683X},
  journal={Soft Matter},
  pages={4718--4722},
  author={Xu, Xufeng and Biesheuvel, P. Maarten and Cölfen, Helmut and Spruijt, Evan}
}
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