Phase behavior of nanoparticles assembled by DNA linkers.
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.
Xiong
Huiming
H
Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
van der Lelie
Daniel
D
Gang
Oleg
O
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
D004277:DNA, Single-Stranded; D006046:Gold