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808 nm‐Light‐Excited Near‐Infrared Luminescent Lanthanide Metal–Organic Frameworks for Highly Sensitive Physiological Temperature Sensing
Author(s) -
Zhao Dian,
Han Xue,
Wang Shuo,
Liu Jingwen,
Lu Yantong,
Li Chunxia
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201905216
Subject(s) - lanthanide , photoexcitation , luminescence , materials science , excited state , infrared , biocompatibility , metal organic framework , absorption (acoustics) , terphenyl , optoelectronics , analytical chemistry (journal) , photochemistry , nanotechnology , chemistry , optics , ion , organic chemistry , adsorption , atomic physics , physics , metallurgy , composite material
Ongoing demand for accurate self‐calibrated noninvasive thermometers for micro‐/nano‐scale applications, particular biomedical diagnosis, is driving the development of temperature sensors. Here a new type of lanthanide metal–organic framework having near‐infrared absorption and near‐infrared emission features is presented, and it is based on efficient Nd 3+ ‐to‐Yb 3+ energy transfer in 808 nm photoexcitation. The results show that the ratiometric parameter of Nd 0.5 Yb 0.5 TPTC (TPTC= 1,1′:4′,1′′‐terphenyl]‐3,3′′,5,5′′‐tetracarboxylic acid) can deliver good exponential‐type luminescence response to temperature in the physiological regime (293–328 K) with high relative sensitivity and accurate temperature resolution, as well as good biocompatibility and chemical stability. Such lanthanide‐based materials are especially useful in biomedical applications.