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Abstract

H. Burak Eral: „Manipulating soft matter with wettability: From drops on fibers to coffee stains”
Physics of Complex Fluids, Dept. Science and Technology, University of Twente

In this talk, I will discuss how our knowledge of classic wetting phenomena can be evoked to control colloidal assembly. To demonstrate the idea, I will discuss two example cases. I will first discuss a classic wetting problem how a drop wets a fiber [1] and its implication on extending the building blocks for colloidal assembly. Secondly, I demonstrate the influence of macroscopic wettability on colloidal assembly in evaporating droplets [2].

Reference:

  1. Drops on functional fibers: from barrels to clamshells and back H.Burak Eral, Jolet de Ruiter, Riëlle de Ruiter, Jung Min Oh, Ciro Semprebon, Martin Brinkmann and Frieder Mugele Soft Matter, 2011, 7, 5138-5143 DOI: 10.1039/C0SM01403F
  2. Suppressing the coffee stain effect: how to control colloidal self-assembly in evaporating drops using electrowetting H. B. Eral, D. Mampallil Augustine, M. H. G. Duits and F. Mugele Soft Matter, 2011, 7, 4954-4958 DOI: 10.1039/C1SM05183K