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Proceedings Paper

Ferricyanide meditated photoacoustic enhancement of metal chalcogenide-coated gold nanorods. (Conference Presentation)
Author(s): Yash Mantri; Jesse V. Jokerst

Paper Abstract

Photoacoustic signal can be significantly enhanced by improving the optical absorption, photothermal conversion efficiency, and thermoelastic expansion of an absorbing nanoprobe. Gold nanorods have low photothermal stability leading to spherical deformation and blue-shifting under high fluence lasers. Our work shows enhanced PA signal and high photothermal stability of metal chalcogenide-coated gold nanorods treated with ferricyanide. Preliminary data suggests up to 28 – 48X increase in PA amplitude and over 10X increase in photothermal stability compared to uncoated nanorods.

Paper Details

Date Published: 6 March 2020
Proc. SPIE 11240, Photons Plus Ultrasound: Imaging and Sensing 2020, 1124019 (6 March 2020); doi: 10.1117/12.2546344
Show Author Affiliations
Yash Mantri, Univ. of California, San Diego (United States)
Jesse V. Jokerst, Univ. of California, San Diego (United States)

Published in SPIE Proceedings Vol. 11240:
Photons Plus Ultrasound: Imaging and Sensing 2020
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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