The European Physical Journal Special Topics

, Volume 189, Issue 1, pp 83–93 | Cite as

Local influence of boundary conditions on a confined supercooled colloidal liquid

  • K.V. Edmond
  • C.R. Nugent
  • E.R. WeeksEmail author


We study confined colloidal suspensions as a model system which approximates the behavior of confined small molecule glass-formers. Dense colloidal suspensions become glassier when confined between parallel glass plates. We use confocal microscopy to study the motion of confined colloidal particles. In particular, we examine the influence particles stuck to the glass plates have on nearby free particles. Confinement appears to be the primary influence slowing free particle motion, and proximity to stuck particles causes a secondary reduction in the mobility of free particles. Overall, particle mobility is fairly constant across the width of the sample chamber, but a strong asymmetry in boundary conditions results in a slight gradient of particle mobility.


European Physical Journal Special Topic Particle Motion Colloidal Suspension Sample Chamber Glass Wall 
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© EDP Sciences and Springer 2010

Authors and Affiliations

  1. 1.Physics Dept., Emory UniversityAtlantaUSA

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