Sun, 06 Jul 2008 11:07:33 BST CiteULike: dchens confinment http://www.citeulike.org/user/dchen/tag/confinment CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2873910 <i>Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 77, No. 5. (2008)</i><br /><br />The near-wall dynamics at the top and bottom phases of a phase-separated colloid-polymer mixture were measured by evanescent-wave dynamic light scattering. The short-time dynamics near the wall were found to be liquidlike in both phases, confirming the presence of a liquid wetting layer. The short-time diffusion within the wetting layer was slower than in the bulk liquid phase. Similarly, the near-wall dynamics in both phases of the colloid-polymer mixture were also slower compared to the near-wall colloidal dynamics in a pure concentrated suspension at the same volume fraction. These effects highlight the role of interparticle attractions and specific wall-induced hydrodynamic interactions in slowing down the colloidal motion in confinement. Particle dynamics within a wetting layer in a colloid-polymer mixture P Voudouris B Loppinet G Petekidis doi:10.1103/PhysRevE.77.051402 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 77, No. 5. (2008) 2008-06-08T20:04:09-00:00 2008 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 77 5 APS 2008 colloids confinment polymer http://www.citeulike.org/user/dchen/article/2873832 <i>Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 77, No. 6. (2008)</i><br /><br />Colloidal model systems have been used for over three decades for investigating liquids, crystals, and glasses. Colloidal crystal superstructures have been observed in binary systems of repulsive spheres as well as oppositely charged sphere systems showing structures well known from atomic solids. In this work we study the structural transition of colloidal crystals under confinement. In addition to the known sequence of crystalline structures, crystal superstructures with dodecagonal and hexagonal symmetry are observed in one component systems. These structures have no atomic counterpart. Exotic crystal superstructures of colloidal crystals in confinement Ana Fontecha Hans Schöpe doi:10.1103/PhysRevE.77.061401 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 77, No. 6. (2008) 2008-06-08T18:22:55-00:00 2008 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 77 6 APS 2008 colloids confinment crystal structure http://www.citeulike.org/user/dchen/article/2749738 <i>Physics Today, Vol. 60, No. 2. (2007), pp. 8-9.</i> The Mysterious Glass Transition James Langer doi:10.1063/1.2711621 Physics Today, Vol. 60, No. 2. (2007), pp. 8-9. 2008-05-03T19:19:58-00:00 2007 Physics Today 60 2 8 9 AIP 2007 confinment glass review weeks