DNA Linker Mediated Assembly of Colloidal Nanoparticles
POSTER
Abstract
When flexible ssDNA linkers are added to the mixture of two types of dispersed, ssDNAs capped gold nanocolloids which are mutually non-complementary but complementary to the respective ends of the linker DNA, a crystalline phase of body-centered-cubic unit cell forms. The phase diagram of DNA linker mediated nanoparticle assemblies has been experimentally investigated and constructed by using in-situ small angle x-ray scattering. The influence of linkage defects on crystalline structure was also examined.
*Research was supported by the U. S. DOE Office of Science and Office of Basic Energy Sciences under contract No. DE-AC-02-98CH10886.