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
Colloids and Surfaces A: Physicochemical and Engineering Aspects – Elsevier
Published: Feb 5, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud