Near-infrared luminescent Nd3+/Yb3+-codoped metal-organic framework for ratiometric temperature sensing in physiological range

被引：21

作者：

Gu, Chao ^{[1
]}

Ding, Yanyun ^{[1
]}

Quan, Xinghua ^{[1
]}

Gong, Mengyao ^{[1
]}

Yu, Jiulong ^{[1
]}

Zhao, Dian ^{[1
]}

Li, Chunxia ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Dept Chem, Key Lab, Minist Educ Adv Catalysis Mat, Jinhua 321004, Zhejiang, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2021年 / 39卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Lanthanide metal-organic frameworks; Near-infrared luminescence; Temperature sensing; Energy transfer; Rare earths; NANOTHERMOMETER; THERMOMETER; COMPOSITE; ACID;

D O I：

10.1016/j.jre.2020.07.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Self-calibrating luminescent thermometry employing luminescence within the optical transparency windows provides a promising prospect for temperature measurement in the biological fields. In this work, a new Nd3+/Yb3+-codoped metal-organic framework Nd0.95Yb0.05BPTC showing threedimensional anionic network, obtained by reacting ligand [1,1'-biphenyl]-3,3',5,5'-tetracarboxylic acid (H4BPTC) with Nd3+ and Yb3+ ions under solvothermal conditions, is reported. Upon 808 nm photoexcitation, Nd0.95Yb0.05BPTC simultaneously emits the characteristic near-infrared luminescence of Nd3+ and Yb3+ ions based on the efficient energy transfer from Nd3+ to Yb3+ ions. In addition, the emission intensity ratio of Yb3+ and Nd3+ shows good exponential-like response to temperature in the physiological range of 293-323 K. The feature properties of Nd0.95Yb0.05BPTC include near-infrared absorption and emission, favorable temperature sensitivity and accurate temperature uncertainty, as well as good chemical stability, making such system useful in biomedical applications. (c) 2020 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

引用

页码：1024 / 1030

页数：7

共 45 条

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