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Bifunctional heater-thermometer Nd3+-doped nanoparticles with multiple temperature sensing parameters

机译：双功能加热器 - 温度计ND3 +掺杂纳米粒子，具有多个温度传感参数

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摘要

Achieving a combination of real-time diagnosis and therapy in a single platform with sensitive thermometry and efficient heat production is a crucial step towards controllable photothermal therapy. Here, Nd3+-doped Y2O3 nanoparticles prepared using the combined Pechini-foaming technique operating in the first and second biological windows were demonstrated as thermal sensors within the wide temperature range of 123-873 K, and as heaters with a temperature increase of 100 K. Thermal sensing was performed based on various approaches: luminescence intensity ratio (electronic levels; Stark sublevels), spectral line position and line bandwidth were used as temperature-dependent parameters. The applicability of these sensing parameters, along with relative thermal sensitivity and temperature resolution, are discussed and compared. The influence of Nd3+-doping concentration on thermometer and heater efficiency was also investigated.
机译：在具有敏感的温度和高效热量的平台中实现实时诊断和治疗的组合是朝着可控的光热疗法的关键步骤。 这里，使用在第一和第二生物窗口中操作的组合的Pechini发泡技术制备的Nd3 + - 掺杂的Y2O3纳米颗粒在123-873k的宽温度范围内被证明为热传感器，并且作为温度升高为100k的加热器。 基于各种方法进行热敏：发光强度比（电子电平; Stark Sublevels），光谱线位置和线带宽被用作温度依赖性参数。 讨论和比较这些感测参数的适用性以及相对热敏和温度分辨率。 还研究了ND3 +掺杂浓度对温度计和加热效率的影响。

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