The photoacoustic signal generated from specific gold nanoparticles increases nonlinearly with respect to fluence. We demonstrate experimentally that this nonlinear behavior can be quenched with a particle coating, and present a theoretical analysis to explain this behavior. This effect has the potential to be developed into a photoacoustic-based biochemical sensor.

中文翻译：

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通过涂层淬灭金纳米粒子中非线性光声信号的产生

特定金纳米粒子产生的光声信号相对于注量呈非线性增加。我们通过实验证明这种非线性行为可以用颗粒涂层淬火，并提出理论分析来解释这种行为。这种效应有可能发展成基于光声的生化传感器。