An Improved Synthesis of High-Aspect-Ratio Gold Nanorods


  • We thank the National Science Foundation Research Experience for Undergraduates Program for support for B. D. B.


By using seed-mediation and careful control of pH, gold nanorods of high aspect ratio (∼ 18–25, 20 in the Figure) have been produced by surfactant-directed synthesis. The yield is high (∼ 90 %) and the method can be readily adapted for scaling up.