Homogeneous and heterogeneous binary colloidal clusters formed by evaporation-induced self-assembly inside droplets

Cited 37 time in webofscience Cited 36 time in scopus
  • Hit : 643
  • Download : 0
In this paper, we report the preparation of binary clusters of colloidal particles with different sizes or species into complex structures using oil-in-water emulsion droplets as confining geometries. First, polystyrene or silica particles with bimodal size distribution were packed densely by evaporation-induced self-assembly inside oil-in-water emulsion droplets. The configurations of larger particles inside the droplets minimize the second moment of the particle locations for the ratio of large to small particle sizes less than 3. Also, the configurations of bimodal clusters were predicted by using a surface evolver simulation, and the simulation predictions were compared with the experimental results. In addition, heterogeneous colloidal clusters were produced by emulsifying the binary mixture suspension of polystyrene and silica particles in aqueous medium followed by evaporating the oil phase. A density gradient centrifugation was applied to fractionate the asymmetric binary dimers comprised of PS and silica microspheres. (c) 2007 Elsevier Inc. All rights reserved.
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Issue Date
2008-02
Language
English
Article Type
Article
Keywords

PARTICLE ARRAYS; MICROSPHERES; SPHERES; CRYSTALLIZATION; ORGANIZATION; CHEMISTRY; PACKING; COMPLEX; SILICA

Citation

JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.318, no.1, pp.124 - 133

ISSN
0021-9797
DOI
10.1016/j.jcis.2007.10.010
URI
http://hdl.handle.net/10203/12736
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 37 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0