Abstract
In this study,we synthesized a new ditetradecylpyridinium bromide based surfactant and further utilized in the development of gold nanoplates structures .To study the plausible growth mechanism of these nanoplates,different reaction conditions were adopted and optimized .The growth mechanistic studies reveal that, smaller size gold nanoparticles tend to aggregate together and in the presence of surfactant as template,which gradually leads to the formation of gold nanoplates. These gold nanoplates possess superior optical properties, such as,extendable NIR absorption and moreover,the Surface Enhanced Raman Scattering (SERS) study shows that the signal enhancement for gold nanoplates is quiet larger than spherical nanoparticles. Overall, our study has proposed a new method to fabricate gold nanostructure with superior optical and SERS properties,which explores its applications in the field of biomedicine.