Session V12: Colloidal Particles and Clusters
8:00 AM–11:00 AM, Thursday, March 18, 2010
Room: B110-B111
Sponsoring Unit:
DFD
Chair: Alex Levine, University of California, Los Angeles
Abstract ID: BAPS.2010.MAR.V12.11
Abstract: V12.00011 : Rational Self-Assembly of Nano-Colloids using DNA Interaction
10:00 AM–10:12 AM
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Abstract 
Authors:
Marie T. Ung
(Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA)
Raynaldo Scarlett
(Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA)
Talid R. Sinno
(Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA)
John C. Crocker
(Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA)
DNA is an attractive tool to direct the rational self-assembly of nano-colloids since its interaction is specific and reversible. This tunable attractive interaction should lead to a diverse and rich phase diagram of higher ordered structures which would not otherwise be entropically favored.\footnote{Tkachenko AV, Morphological Diversity of DNA-Colloidal Self-Assembly, Phys. Rev. Lett 89 (2002)} We compare our latest experimental observations to a simulation framework that precisely replicates the experimental phase behavior and the crystal growth kinetics.\footnote{Kim AJ, Scarlett R., Biancaniello PL, Sinno T, Crocker JC, Probing interfacial equilibration in microsphere crystals formed by DNA-directed assembly, Nature Materials 8, 52-55 (2009)} We will discuss the crystallography of novel structures and address how particle size and heterogeneity affect nucleation and growth rates.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.V12.11