title: Phase behavior of nanoparticles assembled by DNA linkers.
abstract: The phase diagram of DNA linker mediated nanoparticle assemblies was experimentally investigated and constructed. Using small angle x-ray scattering we studied the dependence of the internal structure of assembly on two main system parameters: DNA linker length and the number of linkers per particle. The formation of a crystalline bcc phase was observed for a limited range of linker lengths, while the number of linkers per particle controlled the onset of system crystallization. The influence of linkage defects on crystalline structure was also examined.
authors.affiliation: Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
authors.forename: Huiming
authors.initials: H
authors.lastname: Xiong
authors.forename: Daniel
authors.initials: D
authors.lastname: van der Lelie
authors.forename: Oleg
authors.initials: O
authors.lastname: Gang
mesh_terms: D004277:DNA, Single-Stranded / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D009693:Nucleic Acid Hybridization; D053838:Scattering, Small Angle; D013816:Thermodynamics; D014961:X-Ray Diffraction
chemical_list: D004277:DNA, Single-Stranded; D006046:Gold