| 초록 |
We have investigated the phase behavior of hydrophilically-functionalized gold nanoparticles (p-AuNPs) with a concentrated Pluronic P85 block copolymer ((EO)26(PO)40(EO)26) complex in aqueous solution by using small angle X-ray scattering measurements. Depending on the concentration of p-AuNPs, the p-AuNP/Pluronic P85 complex formed two kinds of superlattice structures, unary or binary structures with large lattice size, in aqueous solution. SAXS measurements showed that the lattice size of the structures identified by indexing of the first Bragg reflection, was ~ 30 nm, which is significantly bigger than the used AuNPs with a diameter of 3.98 nm. This approach can provide a relatively simple procedures for different nanoparticle assemblies in bulk, which is inconsistent with the DNA programmable nanoparticles system and solvent evaporation method. |
