Optimization of the Surfactant Ratio in the Formation of Penta-Twinned Seeds for Precision Synthesis of Gold Nanobipyramids with Tunable Plasmon Resonances.

ABSTRACT: The synthesis of high-purity gold nano bipyramids (Au NBPs) with a narrow size distribution and tunable plasmon resonances is of great significance for plasmon resonance-related applications. However, the synthesis Au NBP approach involves multiple steps with many parameters that can affect the purity of the final product. In this work, we were devoted to studying the effect of the molar ratio between hexadecyltrimethylammonium chloride (CTAC) and sodium citrate tribasic dihydrate (CiNa₃) on the seed formation stage. The results showed that the yield of Au NBP product has dramatically increased with the seed solution made from the molar ratio of CTAC:CiNa₃ at 21:1. Furthermore, using this optimal seed, we can efficiently synthesize Au NBPs with various sizes by adjust

SUBMITTER: Nguyen AL 

PROVIDER: S-EPMC11873936 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature