4-ATP/CTAC-mediated morphology control of gold nanocrystals
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Updated: Nov 3, 2026
Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method
Published on: January 15, 2012
Xia Yan1, Wenjie Jia2,3, Zhiyuan Yang3
1Lvliang City Key Laboratory of Quantum Precision Measurement, Lyuliang University, Lishi, 033001, China. yanx5765@126.com.
Abstract:
A seed-mediated method yields morphology-tunable gold nanocrystals (Au NCs) using 4-ATP and CTAC. Adjusting 4-ATP concentration produces Au NCs with varied shapes and LSPR peaks of 579-783 nm, whereas CTAC merely stabilizes particles without altering morphology. Uniform Convex polyhedral Au NCs with sharp tips deliver strong SERS enhancement. Embedded 4-ATP acts as an internal probe for reliable quantification, offering a facile route to self-calibrated SERS substrates for trace analysis.
