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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Photoluminescence: Fluorescence and Phosphorescence01:23

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Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
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Fluorescence Lifetime Macro Imager for Biomedical Applications
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Organic persistent luminescence imaging for biomedical applications.

Zelin Wu1, Adam C Midgley1, Deling Kong1

  • 1State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 700031, China.

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Organic persistent luminescence materials (OPLMs) offer a robust alternative for in vivo bioimaging. Recent advancements address limitations, paving the way for next-generation probes with enhanced multifunctionality and broader biological applications.

Keywords:
BioimagingBiomedical applicationMolecular probeOrganic persistent luminescence

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Area of Science:

  • Materials Science
  • Biomedical Imaging
  • Organic Chemistry

Background:

  • Persistent luminescence (PL) involves delayed light emission from stored energy in luminescent molecules.
  • Organic persistent luminescence materials (OPLMs) are promising for bioimaging due to their robustness and biocompatibility.
  • OPLMs offer an alternative to traditional fluorescence imaging in biomedical applications.

Purpose of the Study:

  • To review current limitations of OPLM-based bioimaging probes based on luminescence mechanisms.
  • To highlight research progress in overcoming these limitations.
  • To discuss design strategies for multifunctional OPLMs and their biological applications.

Main Methods:

  • Review of existing literature on OPLM luminescence mechanisms.
  • Analysis of research addressing OPLM shortcomings.
  • Discussion of design strategies and application prospects.

Main Results:

  • Identified limitations in current OPLM classes for bioimaging.
  • Demonstrated research efforts to circumvent OPLM shortcomings.
  • Highlighted multifunctionality-focused design strategies.

Conclusions:

  • OPLMs show significant potential for advanced in vivo bioimaging.
  • Overcoming current limitations will expand their biomedical applications.
  • Next-generation OPLMs are being developed for improved bioimaging techniques.