Ferricyanide meditated photoacoustic enhancement of metal chalcogenide-coated gold nanorods. (Conference Presentation)

Yash Mantri; Jesse V. Jokerst

doi:10.1117/12.2546344

6 March 2020 Ferricyanide meditated photoacoustic enhancement of metal chalcogenide-coated gold nanorods. (Conference Presentation)

Yash Mantri, Jesse V. Jokerst

Author Affiliations +

Proceedings Volume 11240, Photons Plus Ultrasound: Imaging and Sensing 2020; 1124019 (2020) https://doi.org/10.1117/12.2546344
Event: SPIE BiOS, 2020, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Yash Mantri and Jesse V. Jokerst "Ferricyanide meditated photoacoustic enhancement of metal chalcogenide-coated gold nanorods. (Conference Presentation)", Proc. SPIE 11240, Photons Plus Ultrasound: Imaging and Sensing 2020, 1124019 (6 March 2020); https://doi.org/10.1117/12.2546344

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