Separation of different-sized silica nanoparticles using asymmetric flow field-flow fractionation by control of the Debye length of the particles with the addition of electrolyte molecules

Separation of different-sized silica nanoparticles using asymmetric flow field-flow fractionation... Colloids and Surfaces A 538 (2018) 678–685 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Separation of different-sized silica nanoparticles using asymmetric flow field-flow fractionation by control of the Debye length of the particles with the addition of electrolyte molecules Haruhisa Kato , Ayako Nakamura, Hidekuni Banno, Mikiko Shimizu National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Asymmetric flow field-flow fractionation (AF4) is widely used in nanotechnology to fractionate objective size Asymmetric flow field-flow fractionation from samples with wide size distributions. Essentially, the size separation of nanoparticles by AF4 is based on the Silica nanoparticle diffusivity/size of the objects; however; we found unexpected results when using AF4 for the separation of Size different-sized silica nanoparticles. Using pure water as the carrier liquid in the AF4 assessment, silica nano- Sodium dodecyl sulfate particles of 50 and 100 nm were eluted out at almost the same retention time because of the cooperative dif- Debye length fusion derived by larger amounts of particles. After reducing the total concentration of silica particles, since the Zeta potential http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Colloids and Surfaces A: Physicochemical and Engineering Aspects Elsevier

Separation of different-sized silica nanoparticles using asymmetric flow field-flow fractionation by control of the Debye length of the particles with the addition of electrolyte molecules

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0927-7757
eISSN
1873-4359
D.O.I.
10.1016/j.colsurfa.2017.11.067
Publisher site
See Article on Publisher Site

Abstract

Colloids and Surfaces A 538 (2018) 678–685 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Separation of different-sized silica nanoparticles using asymmetric flow field-flow fractionation by control of the Debye length of the particles with the addition of electrolyte molecules Haruhisa Kato , Ayako Nakamura, Hidekuni Banno, Mikiko Shimizu National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Asymmetric flow field-flow fractionation (AF4) is widely used in nanotechnology to fractionate objective size Asymmetric flow field-flow fractionation from samples with wide size distributions. Essentially, the size separation of nanoparticles by AF4 is based on the Silica nanoparticle diffusivity/size of the objects; however; we found unexpected results when using AF4 for the separation of Size different-sized silica nanoparticles. Using pure water as the carrier liquid in the AF4 assessment, silica nano- Sodium dodecyl sulfate particles of 50 and 100 nm were eluted out at almost the same retention time because of the cooperative dif- Debye length fusion derived by larger amounts of particles. After reducing the total concentration of silica particles, since the Zeta potential

Journal

Colloids and Surfaces A: Physicochemical and Engineering AspectsElsevier

Published: Feb 5, 2018

References

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