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Photoluminescence: Applications

Photoluminescence: Applications

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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Updated: Dec 19, 2025

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection

Published on: February 9, 2024

Nanozyme-based luminescence detection.

Jinyi Zhang¹, Juewen Liu¹

¹Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada.

Luminescence : the Journal of Biological and Chemical Luminescence

|June 8, 2020

Summary

This summary is machine-generated.

This review explores luminescence signaling in nanozyme systems, focusing on enzyme mimics that use light-emitting substrates. These nanozyme assays offer sensitive detection for applications like bioimaging and biosensing.

Keywords:

biosensors fluorescence nanozymes

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Area of Science:

Nanotechnology
Biochemistry
Analytical Chemistry

Background:

Nanozymes are nanomaterial-based enzyme mimics.
Traditional nanozyme assays often rely on colorimetric substrates.
Luminescence and fluorescence signals are crucial for advanced applications like imaging and sensitive biosensing.

Purpose of the Study:

To review luminescence signaling-based nanozyme systems.
To discuss substrates suitable for luminescence generation with nanozymes.
To highlight various types of nanozymes and their applications in luminescence assays.

Main Methods:

Summarizing properties of common luminescence substrates (e.g., Amplex Red, luminol).
Reviewing specific nanozymes including metal nanoparticles, metal oxides, carbon nanomaterials, and metal-organic frameworks.
Discussing the advantages of luminescence detection, such as high sensitivity and low background.

Main Results:

Luminescence substrates enable sensitive detection with various nanozymes.
Certain substrates function effectively at neutral pH, suitable for intracellular applications.
Nanozymes like metal nanoparticles and MOFs show promise in luminescence-based assays.

Conclusions:

Luminescence signaling offers a powerful approach for nanozyme-based assays.
Further research into nanozyme-substrate interactions can unlock new applications in bioimaging and diagnostics.
Nanozyme technology continues to evolve, with luminescence assays representing a key advancement.