title: Wetting in a colloidal liquid-gas system.
abstract: We present first observations of wetting phenomena in depletion interaction driven, phase separated colloidal dispersions (coated silica-cyclohexane-polydimethylsiloxane). The contact angle of the colloidal liquid-gas interface at a solid substrate (coated glass) was determined for a series of compositions. Upon approach to the critical point, a transition occurs from partial to complete wetting.
authors.affiliation: Laboratory of Physical Chemistry and Colloid Science, Wageningen University, P.O. Box 8038, 6700 EK Wageningen, The Netherlands.
authors.forename: W K
authors.initials: WK
authors.lastname: Wijting
authors.forename: N A M
authors.initials: NA
authors.lastname: Besseling
authors.forename: M A Cohen
authors.initials: MA
authors.lastname: Stuart