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Environment-Dependent Generation of Photoacoustic Waves from Plasmonic Nanoparticles

Authors

  • Yun-Sheng Chen,

    1. Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, TX 78712, USA
    2. Department of Electrical and Computer Engineering, University of Texas at Austin, 1 University Station C0800, Austin, TX 78712, USA
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  • Wolfgang Frey,

    1. Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, TX 78712, USA
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  • Salavat Aglyamov,

    1. Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, TX 78712, USA
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  • Stanislav Emelianov

    Corresponding author
    1. Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, TX 78712, USA
    2. Department of Electrical and Computer Engineering, University of Texas at Austin, 1 University Station C0800, Austin, TX 78712, USA
    • Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, TX 78712, USA.

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Abstract

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Nanoparticle-augmented photoacoustics is an emerging technique for molecular imaging. This study investigates the fundamental process of the photoacoustic signal generation by plasmonic nanoparticles suspended in a weakly absorbing fluid. The photoacoustic signal of gold nanospheres with varying silica shell thicknesses is shown to be dominated by the heat transfer between the nanoparticles and the surrounding environment.

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