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Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System

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Published on: December 16, 2019

Ratiometric oxygen sensing using lanthanide luminescent emitting interfaces.

Joshua Lehr¹, Manuel Tropiano, Paul D Beer

¹University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK. Stephen.faulkner@chem.ox.ac.uk Jason.Davis@chem.ox.ac.uk.

Chemical Communications (Cambridge, England)

|September 18, 2015

Summary

Researchers developed a novel ratiometric lanthanide luminescent oxygen sensing interface. This interface uses terbium and europium cyclen complexes for precise oxygen detection up to 0.2 atm.

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Area of Science:

Materials Science
Analytical Chemistry
Biomedical Engineering

Background:

Lanthanide complexes offer unique luminescent properties for sensing applications.
Developing robust and sensitive oxygen sensors is crucial for various scientific and industrial fields.
Existing oxygen sensing technologies have limitations in sensitivity or response range.

Purpose of the Study:

To report the first ratiometric lanthanide luminescent oxygen sensing interface.
To demonstrate a novel method for immobilizing lanthanide complexes on glass substrates.
To characterize the oxygen sensing performance of the developed interface.

Main Methods:

Novel aryl nitrene photografting approach for immobilizing terbium and europium cyclen complexes.
Fabrication of luminescent interfaces on glass substrates.
Testing the oxygen response of the interfaces in a controlled environment.

Main Results:

Successful immobilization of lanthanide cyclen complexes on glass.
Demonstration of a ratiometric oxygen response.
Oxygen sensing capability observed in the range of 0 to 0.2 atm partial oxygen pressure.

Conclusions:

The developed interface represents a significant advancement in lanthanide-based oxygen sensing.
The photografting approach offers a versatile method for creating functionalized sensing surfaces.
The ratiometric sensing mechanism provides enhanced accuracy and reliability for oxygen detection.