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Abstract：
Plasmonic systems are becoming a favourable alternative to dye molecules in the generation of photoacoustic signals for spectroscopy and imaging. In particular, inorganic nanoparticles are appealing because of their versatility. In fact, as the shape, size and chemical composition of nanoparticles are directly correlated with their plasmonic properties, the excitation wavelength can be tuned to their plasmon resonance by adjusting such traits. This feature enables an extensive spectral range to be covered. In addition, surface chemical modifications can be performed to provide the nanoparticles with designed functionalities, e.g., selective affinity for specific macromolecules. The efficiency of the conversion of absorbed photon energy into heat, which is the physical basis of the photoacoustic signal, can be accurately determined by photoacoustic methods. This review contrasts studies that evaluate photoconversion in various kinds of nanomaterials by different methods, with the objective of facilitating the researchers\' choice of suitable plasmonic nanoparticles for photoacoustic applications.
摘要：
等离子体系统在产生用于光谱学和成像的光声信号方面正成为染料分子的有利替代品。特别是,无机纳米粒子因其多功能性而具有吸引力。事实上,作为形状，纳米粒子的大小和化学组成与其等离子体性质直接相关，激发波长可以通过调整这些特性来调整到它们的等离子体共振。该特征使得能够覆盖广泛的光谱范围。此外,可以进行表面化学修饰以提供具有设计功能的纳米颗粒，例如，对特定大分子的选择性亲和力。吸收的光子能量转化为热量的效率，这是光声信号的物理基础，可以通过光声方法准确地确定。这篇综述对比了通过不同方法评估各种纳米材料中光转化的研究，目的是促进研究人员选择合适的等离子体纳米粒子用于光声应用。
