Session B6: Control and Architecture in Directed Macromolecular Self-Assembly
11:15 AM–2:15 PM, Monday, March 5, 2007
Colorado Convention Center Room: 207
Sponsoring Units:
GSNP DPOLY
Chair: Alex Travesset, Iowa State University and Ames National Laboratory
Abstract ID: BAPS.2007.MAR.B6.2
Abstract: B6.00002 : Colloidal atoms and molecules
11:51 AM–12:27 PM
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Abstract 
Author:
David Pine
(Center for Soft Matter Research, Department of Physics, New York University, 4 Washington Place, New York, NY 10003)
We describe two new types of colloidal particles that greatly expand the kinds of colloids and nanoparticles that are available for self-assembly. The first type, called colloidal molecules, consists of clusters of microspheres and/or nanospheres that take on well-defined geometries such as dumbbells, triangles, tetrahedra, octahedral, \textit{etc}. With these, we explore new two and three-dimensional phases, including dumbbells at a planar interface, and three-dimensional assemblies of tetrahedra. The second type, called colloidal atoms, consists of nearly spherical particles with a specific number of symmetrically-placed patches on their surface. These patches have symmetries similar to the colloidal molecules described above. The patches can be functionalized with single-stranded DNA that interacts specifically with complementary strands on other particles forming a network or crystal of colloidal particles.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.MAR.B6.2