Tunable Nanostructure of Surface Modified Gold Nanoparticle in Block Copolymer Liquid Crystalline Phase
발표자
()
초록
내용
The gold nanoparticles are used in a wide range of nanomaterial applications such as cell tracker, bio-imaging, and photocatalyst, due to have unique optical/electrical properties that are highly dependent on the structure of particle including the spatial arrangement. In this presentation, we investigated the phase behavior in high concentration liquid crystal systems induced by hydrophilic surface-modified gold nanoparticles. The structures of gold nanoparticles in concentrated Pluronic tri-block copolymer((EO)x-(PO)y-(EO)x) were highly ordered crystalline phase such as cubic, hexagonal, lamella, and HCP depending on the concentration and temperature. This is a method of determining nanoparticle superlattices in a way that can occur through a relatively simple procedure in aqueous solution, unlike superlattices made by a DNA programmable nanoparticle system and solvent evaporation method.