Related Experiment Video
Updated: Jun 30, 2026

Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System
Published on: June 30, 2018
Acoustic oscillations and elastic moduli of single gold nanorods
Peter Zijlstra1, Anna L Tchebotareva, James W M Chon
1Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, P.O. Box 218, Hawthorn, 3122, VIC Australia
Abstract:
We present the first acoustic vibration measurements of single gold nanorods with well-characterized dimensions and crystal structure. The nanorods have an average size of 90 nm x 30 nm and display two vibration modes, the breathing mode and the extensional mode. Correlation between the dimensions obtained from electron microscope images and the vibrational frequencies of the same particle allows us to determine the elastic moduli for each individual nanorod. Contrary to previous reports on ensembles of gold nanorods, we find that the single particle elastic moduli agree well with bulk values.

