Sat, 19 Jul 2008 03:01:24 BST CiteULike: dchen's Elsesser http://www.citeulike.org/user/dchen/author/Elsesser CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/1205550 <i>Science, Vol. 301, No. 5632. (25 July 2003), pp. 483-487.</i><br /><br />When small numbers of colloidal microspheres are attached to the surfaces of liquid emulsion droplets, removing fluid from the droplets leads to packings of spheres that minimize the second moment of the mass distribution. The structures of the packings range from sphere doublets, triangles, and tetrahedra to exotic polyhedra not found in infinite lattice packings, molecules, or minimum-potential energy clusters. The emulsion system presents a route to produce newcolloidal structures and a means to study howdifferent physical constraints affect symmetry in small parcels of matter. 10.1126/science.1086189 Dense Packing and Symmetry in Small Clusters of Microspheres Vinothan Manoharan Mark Elsesser David Pine doi:10.1126/science.1086189 Science, Vol. 301, No. 5632. (25 July 2003), pp. 483-487. 2007-04-04T07:42:56-00:00 2003 Science 301 5632 483 487 cluster colloids pine