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Related Concept Videos

Photoluminescence: Applications01:14

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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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Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
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Organic room-temperature phosphorescence materials for bioimaging.

Yahui Zhang1,2,3, Hairong Li1,2, Mengdie Yang1,2

  • 1Department of Chemistry, School of Science, Xihua University, Chengdu, 610039, P. R. China. xqyu@scu.edu.cn.

Chemical Communications (Cambridge, England)
|April 11, 2023
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Summary

Organic room-temperature phosphorescence (RTP) materials offer advanced bioimaging by enabling time-resolved imaging and overcoming autofluorescence. This review covers strategies for high-performance RTP materials and their nanonization for improved imaging resolution.

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Area of Science:

  • Materials Science
  • Biomedical Imaging
  • Organic Chemistry

Background:

  • Organic room-temperature phosphorescence (RTP) materials are crucial for advanced bioimaging applications.
  • RTP materials offer long emission lifetimes, enabling time-resolved imaging to enhance resolution by minimizing autofluorescence interference.
  • This contrasts with conventional imaging methods relying on organic fluorescent dyes.

Purpose of the Study:

  • This review summarizes strategies for developing high-performance RTP materials tailored for bioimaging.
  • It discusses methods for optimizing the nanonization of RTP materials into nanoparticles with controlled properties.
  • Emerging preparation techniques for RTP materials in bioimaging are also briefly introduced.

Main Methods:

  • Review of strategies for creating high-performance RTP materials, including RTP-compounds, host-guest doping, and supramolecular assemblies.
  • Discussion on optimizing nanonization processes for RTP nanoparticles, focusing on size control, dispersibility, and stability.
  • Comparison of top-down and bottom-up approaches for nanoparticle fabrication.

Main Results:

  • Strategies for developing high-performance RTP materials are presented.
  • Optimization of nanonization processes yields RTP nanoparticles with desirable characteristics for bioimaging.
  • Emerging methods for RTP material preparation are highlighted.

Conclusions:

  • RTP materials represent a significant advancement in bioimaging technology.
  • Effective strategies for material design and nanonization are key to unlocking their full potential.
  • Continued research into novel preparation methods will further enhance RTP applications in bioimaging.