Lin Gungun, Jin Dayong
Institute for Biomedical Materials & Devices, Faculty of Science, The University of Technology Sydney, Ultimo, New South Wales 2007, Australia.
UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Avenue, Nanshan, Shenzhen, Guangdong 518055, China.
ACS Sens. 2021 Dec 24;6(12):4272-4282. doi: 10.1021/acssensors.1c02101. Epub 2021 Dec 8.
Upconversion nanoparticles are a class of luminescent materials that convert longer-wavelength near-infrared photons into visible and ultraviolet emissions. They can respond to various external stimuli, which underpins many opportunities for developing the next generation of sensing technologies. In this perspective, the unique stimuli-responsive properties of upconverting nanoparticles are introduced, and their recent implementations in sensing are summarized. Promising material development strategies for enhancing the key sensing merits, including intrinsic sensitivity, biocompatibility and modality, are identified and discussed. The outlooks on future technological developments, novel sensing concepts, and applications of nanoscale upconversion sensors are provided.
上转换纳米粒子是一类发光材料，可将长波长近红外光子转换为可见光和紫外光发射。它们能够响应各种外部刺激，这为开发下一代传感技术提供了诸多机遇。本文介绍了上转换纳米粒子独特的刺激响应特性，并总结了它们在传感领域的最新应用。确定并讨论了用于增强关键传感特性（包括固有灵敏度、生物相容性和模式）的有前景的材料开发策略。还展望了未来的技术发展、新型传感概念以及纳米级上转换传感器的应用。
