| 초록 |
It is important to prepare the synthesis methods with controllability of materials’ shape and size. Elaborate controls in collision-based crystal nucleation and/or particle synthesis are enabling this goal. The mechanism study of synthesis may explain how different shapes and sizes can be controlled. For examples like gold, the surface energies and chemistries are major factors. Gold nanoparticles have been synthesized since 19th century, but it is only in the past decades that progress towards nonspherical nanoparticles preparations have been achieved. In this study, we demonstrate morphological controls in core@shell magnetic nanoparticles that include superparamagnetic iron oxide nanoparticles (SPION) in a core. The study of core@shell nanoparticle has various applications through formation of functional shell structures. Here, we describe a strategy for controlling the shape of Fe3O4@Au nanoparticle depending on the various charges of surfactant and on the effect of halide ions. |
