Fabrication and Growth Mechanism of Star-Shaped Gold Nanoparticles via Seed-Mediated Growth Method

Abstract

In this paper, gold nanoparticles with branches were prepared in aqueous solutions using seed-mediated growth method. The mean diameter of the seeds chosen for these studies is 6~8nm. The influence of reducing agent used in synthesis gold sphere as seeds was investigated. A reaction mechanism of fabrication gold nanostar particles was systematically described. The nanoparticles synthesized were characterized by transmission electron microscopy (TEM) and UV-vis spectroscopy. In order to investigate their optical property, Surface Enhanced Raman Scattering (SERS) spectrums were tested, which showed quite good Raman enhencement.

Fiber Surface Modification Technology for Fiber-Optic Localized Surface Plasmon Resonance Biosensors

“…Under surface modification using APTMS and MPTMS, the star-shaped gold nanoparticles 80 nm to 120 nm in size were treated using the seed-mediated growth method [ 19 ]. The static material on the surfaces of the particles is the key of the self-assembly process, according to the binding mechanism.…”