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Multifunctional Lanthanide-Doped Core/Shell Nanoparticles: Integration of Upconversion Luminescence, Temperature Sensing, and Photothermal Conversion Properties
ACS Omega ( IF 3.7 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1021/acsomega.7b01581 Qiyue Shao 1 , Zhaochun Yang 1 , Gongtuo Zhang 1 , Yanqing Hu 1 , Yan Dong 1 , Jianqing Jiang 1
ACS Omega ( IF 3.7 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1021/acsomega.7b01581 Qiyue Shao 1 , Zhaochun Yang 1 , Gongtuo Zhang 1 , Yanqing Hu 1 , Yan Dong 1 , Jianqing Jiang 1
Affiliation
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Multifunctional integration on single upconversion nanoparticles (UCNPs), such as the simultaneous achievement of imaging, sensing, and therapy, will be extremely attractive in various application fields. Herein, we demonstrated that single core/shell NaGdF4:Yb/Er-based UCNPs (<10 nm) with a highly Yb3+ or Nd3+ doped shell simultaneously exhibited good upconversion luminescence (UCL), temperature sensing, and photothermal conversion properties under 980 or 808 nm excitation, respectively. The spatial separation between the emission/sensing core and the heating shell was able to tailor the competition between the light and heat generation processes, and hence higher UCL efficiency and enhanced heating capability were achieved by introducing the rational core/shell design. Especially, Nd3+-sensitized core/shell nanoparticles were excitable to the laser at a more biocompatible wavelength of 808 nm, and hence the heating effect of water was greatly minimized. The heating and sensing capabilities of Nd3+-sensitized core/shell UCNPs with smaller sizes (<10 nm) were confirmed in aqueous environment under single 808 nm laser excitation, implying their promising applications in imaging-guided and temperature-monitored photothermal treatments.
中文翻译：
多功能稀土掺杂核/壳纳米粒子：集上转换发光、温度传感和光热转换特性于一体
单个上转换纳米颗粒（UCNP）的多功能集成，例如同时实现成像、传感和治疗，将在各个应用领域极具吸引力。在此，我们证明了具有高度 Yb 3+或 Nd 3+掺杂壳的单核/壳 NaGdF 4 :Yb/Er 基 UCNP（<10 nm）同时表现出良好的上转换发光（UCL）、温度传感和光热转换分别在 980 或 808 nm 激发下的特性。发射/传感核心和加热外壳之间的空间分离能够调整光和热产生过程之间的竞争，因此通过引入合理的核心/外壳设计实现了更高的UCL效率和增强的加热能力。特别地，Nd 3+敏化的核/壳纳米颗粒可被具有生物相容性的808nm波长的激光激发，因此水的加热效应被大大最小化。较小尺寸（<10 nm）的 Nd 3+ 敏化核/壳 UCNP 的加热和传感能力在水环境中在单次 808 nm 激光激发下得到证实，这意味着它们在成像引导和温度监测光热治疗中具有广阔的应用前景。
更新日期：2018-01-08
中文翻译：
多功能稀土掺杂核/壳纳米粒子：集上转换发光、温度传感和光热转换特性于一体
单个上转换纳米颗粒（UCNP）的多功能集成，例如同时实现成像、传感和治疗，将在各个应用领域极具吸引力。在此，我们证明了具有高度 Yb 3+或 Nd 3+掺杂壳的单核/壳 NaGdF 4 :Yb/Er 基 UCNP（<10 nm）同时表现出良好的上转换发光（UCL）、温度传感和光热转换分别在 980 或 808 nm 激发下的特性。发射/传感核心和加热外壳之间的空间分离能够调整光和热产生过程之间的竞争，因此通过引入合理的核心/外壳设计实现了更高的UCL效率和增强的加热能力。特别地，Nd 3+敏化的核/壳纳米颗粒可被具有生物相容性的808nm波长的激光激发，因此水的加热效应被大大最小化。较小尺寸（<10 nm）的 Nd 3+ 敏化核/壳 UCNP 的加热和传感能力在水环境中在单次 808 nm 激光激发下得到证实，这意味着它们在成像引导和温度监测光热治疗中具有广阔的应用前景。
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