研究目的
To develop a new type of lanthanide metal-organic framework (LnMOF) thermometer with near-infrared absorption and emission features for highly sensitive physiological temperature sensing.
研究成果
The study successfully developed a new type of LnMOF thermometer with near-infrared absorption and emission features, based on efficient Nd3+-to-Yb3+ energy transfer. The Nd0.5Yb0.5TPTC showed high relative sensitivity and accurate temperature resolution in the physiological regime, along with good biocompatibility and chemical stability, making it suitable for biomedical applications.
研究不足
The study is limited to the physiological temperature range of 293 to 328 K and focuses on the Nd3+/Yb3+ co-doping approach for temperature sensing.
1：Experimental Design and Method Selection:
The study involved the synthesis and characterization of a new type of LnMOF thermometer based on efficient Nd3+-to-Yb3+ energy transfer under 808 nm photo excitation.
2：Sample Selection and Data Sources:
The samples included NdTPTC, YbTPTC, and mixed LnMOFs NdxYb1-xTPTC (x =
3：4, 5). List of Experimental Equipment and Materials:
Equipment used included a Bruker Advance DMX 600 spectrometer, MAXima_X XRD-7000 X-ray diffractometer, TG209F3 instrument, EA1112 microelemental analyzer, Thermo Fisher Nicolet iS10 spectrometer, Thermo IRIS Intrepid II XSP spectrometer, Edinburgh Instrument F920 spectrometer, and Bruke Smart Apex II diffractometer.
4：Experimental Procedures and Operational Workflow:
The synthesis of LnMOFs involved reacting H4TPTC with Nd(NO3)3?6H2O or Yb(NO3)3 in a DMF/H2O solvent mixture. The luminescence properties were examined under specific NIR lasers.
5：Data Analysis Methods:
The temperature dependence of the emission intensity ratio was analyzed using a generalized form of Boltzmann law.
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Edinburgh Instrument F920 spectrometer
F920
Edinburgh Instrument
Fluorescence spectra measurement
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Bruke Smart Apex II diffractometer
Smart Apex II
Bruke
Single crystal X-ray diffraction
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Bruker Advance DMX 600 spectrometer
DMX 600
Bruker
Measurement of 1H NMR and 13C NMR spectra
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Thermo Fisher Nicolet iS10 spectrometer
iS10
Thermo Fisher
Fourier-transform infrared spectroscopy
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Thermo IRIS Intrepid II XSP spectrometer
IRIS Intrepid II XSP
Thermo
Inductively coupled plasma spectroscopy
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MAXima_X XRD-7000 X-ray diffractometer
XRD-7000
MAXima_X
Powder X-ray diffraction analysis
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TG209F3 instrument
TG209F3
Thermogravimetric analysis
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EA1112 microelemental analyzer
EA1112
Elemental composition characterization
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