当前位置：
X-MOL 学术
›
Inorg. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Trimodal Ratiometric Luminescent Thermometer Covering Three Near-Infrared Transparency Windows
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2021-09-23 , DOI: 10.1021/acs.inorgchem.1c02311 Zhiying Wang 1 , Mochen Jia 1 , Mingxuan Zhang 1 , Xiaoyang Jin 1 , Hanyu Xu 1 , Zuoling Fu 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2021-09-23 , DOI: 10.1021/acs.inorgchem.1c02311 Zhiying Wang 1 , Mochen Jia 1 , Mingxuan Zhang 1 , Xiaoyang Jin 1 , Hanyu Xu 1 , Zuoling Fu 1
Affiliation
|
Near-infrared (NIR) transparency windows have evoked considerable interest in biomedical thermal imaging owing to the superior tissue penetration and the high signal-to-noise ratio, allowing in vivo real-time temperature reading with nanometric spatial resolution. Here, we develop a multimode nonintrusive luminescent thermometer based on the Y3Al5O12 (YAG):Cr3+/Ln3+ (Ln = Ho, Er, Yb) phosphor, which covers three NIR biological transparency windows, enabling cross-checking readings with high sensitivity and a high penetration depth. Utilizing the energy transfer between lanthanide ions and transition-metal ions, the Cr3+/Ln3+-activated upconversion emissions provide ideal signals for ratiometric luminescent thermometry of the NIR-I mode. The phonon-assisted downshifting emissions of Er3+/Ho3+ are used to construct the NIR-III/II mode, and the NIR-III mode is based on the thermal coupling between stark levels of 4I13/2 (Er3+). Three independent modes show distinct thermometric performance in different NIR transparency windows and temperature ranges, and the combination of the three modes is conducive to obtain more accurate temperature readings in a broad temperature range, which paves the way toward versatile luminescent thermometers.
中文翻译：
覆盖三个近红外透明窗口的三峰比率发光温度计
由于出色的组织穿透力和高信噪比，近红外 (NIR) 透明窗在生物医学热成像中引起了相当大的兴趣，允许以纳米空间分辨率进行体内实时温度读数。在这里，我们开发了一种基于 Y 3 Al 5 O 12 (YAG):Cr 3+ /Ln 3+ (Ln = Ho, Er, Yb) 荧光粉的多模式非侵入式发光温度计，它覆盖了三个 NIR 生物透明窗口，使交叉- 以高灵敏度和高穿透深度检查读数。利用镧系离子和过渡金属离子之间的能量转移，Cr 3+ /Ln 3+-激活的上转换发射为 NIR-I 模式的比率式发光测温提供了理想的信号。Er 3+ /Ho 3+的声子辅助降档发射用于构建NIR-III/II模式，NIR-III模式基于4 I 13/2 (Er 3 + )。三种独立模式在不同的 NIR 透明度窗口和温度范围内表现出不同的测温性能，三种模式的结合有利于在较宽的温度范围内获得更准确的温度读数，为多功能发光温度计铺平了道路。
更新日期：2021-10-04
中文翻译：
覆盖三个近红外透明窗口的三峰比率发光温度计
由于出色的组织穿透力和高信噪比，近红外 (NIR) 透明窗在生物医学热成像中引起了相当大的兴趣，允许以纳米空间分辨率进行体内实时温度读数。在这里，我们开发了一种基于 Y 3 Al 5 O 12 (YAG):Cr 3+ /Ln 3+ (Ln = Ho, Er, Yb) 荧光粉的多模式非侵入式发光温度计，它覆盖了三个 NIR 生物透明窗口，使交叉- 以高灵敏度和高穿透深度检查读数。利用镧系离子和过渡金属离子之间的能量转移，Cr 3+ /Ln 3+-激活的上转换发射为 NIR-I 模式的比率式发光测温提供了理想的信号。Er 3+ /Ho 3+的声子辅助降档发射用于构建NIR-III/II模式，NIR-III模式基于4 I 13/2 (Er 3 + )。三种独立模式在不同的 NIR 透明度窗口和温度范围内表现出不同的测温性能，三种模式的结合有利于在较宽的温度范围内获得更准确的温度读数，为多功能发光温度计铺平了道路。
京公网安备 11010802027423号