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Related Experiment Videos

Luminescence imaging microscopy and lifetime mapping using kinetically stable lanthanide(III) complexes.

A Beeby1, S W Botchway, I M Clarkson

  • 1Department of Chemistry, University of Durham, UK. andrew.beeby@durham.ac.uk

Journal of Photochemistry and Photobiology. B, Biology
|January 12, 2001
PubMed
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Stable lanthanide complexes with phenanthridine antennas enable time-resolved imaging of silica particles. This technique allows for time-gated imaging and lifetime mapping, distinguishing signals from background fluorescence.

Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Photophysics

Background:

  • Lanthanide complexes offer unique luminescent properties.
  • Phenanthridine serves as an effective antenna for sensitizing lanthanide luminescence.
  • Time-resolved imaging requires probes with suitable luminescence lifetimes.

Purpose of the Study:

  • To develop and utilize stable lanthanide complexes for advanced imaging applications.
  • To demonstrate the capability of these complexes in generating time-resolved images.
  • To explore the application of millisecond luminescence lifetimes for time-gated imaging and lifetime mapping.

Main Methods:

  • Synthesis of stable lanthanide complexes (1 and 2) with phenanthridine antennas.
  • Utilizing the sensitised luminescence of these complexes.

Related Experiment Videos

  • Applying time-resolved imaging techniques to silica particles.
  • Implementing time-gated imaging to reduce background noise.
  • Performing lifetime mapping across the sample area.

    • Main Results:

    • Stable lanthanide complexes (1 and 2) were successfully synthesized.
    • The complexes exhibited millisecond-order luminescence lifetimes.
    • Time-resolved images of silica particles were generated.
    • Time-gated imaging effectively isolated signals from a fluorescent background.
    • Lifetime mapping provided spatial distribution information of the luminescence.

    Conclusions:

    • Stable lanthanide complexes with phenanthridine antennas are suitable for time-resolved imaging.
    • The millisecond luminescence lifetime enables effective time-gated imaging and background suppression.
    • This approach facilitates detailed lifetime mapping of samples, offering new analytical capabilities.