Related Experiment Video
Updated: Jun 8, 2026

09:25
ROS Live Cell Imaging During Neuronal Development
Published on: February 9, 2021
HKGreen-3: a rhodol-based fluorescent probe for peroxynitrite
1Morningside Laboratory for Chemical Biology and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People's Republic of China.
Organic Letters
|October 6, 2010
Summary
Researchers developed HKGreen-3, a new fluorescent probe for detecting peroxynitrite. This highly sensitive and selective probe works effectively in both chemical and biological settings.
Area of Science:
- Chemical Biology
- Analytical Chemistry
Background:
- Peroxynitrite is a reactive nitrogen species implicated in various physiological and pathological processes.
- Accurate detection of peroxynitrite is crucial for understanding its biological roles and developing therapeutic strategies.
Purpose of the Study:
- To design and synthesize a novel fluorescent probe for sensitive and selective detection of peroxynitrite.
- To evaluate the probe's performance in both chemical and biological environments.
Main Methods:
- Development of a rhodol-based fluorescent scaffold.
- Utilizing a peroxynitrite-specific oxidation reaction for probe activation.
- Testing probe sensitivity and selectivity using spectroscopic methods.
- Validation of the probe in biological samples.
Main Results:
- A new fluorescent probe, HKGreen-3, was successfully synthesized.
- HKGreen-3 demonstrated high sensitivity and selectivity for peroxynitrite detection.
- The probe exhibited excellent performance in both in vitro chemical assays and in cell-based biological systems.
Conclusions:
- HKGreen-3 represents a promising tool for peroxynitrite sensing.
- The probe's characteristics make it suitable for various applications in chemical biology and biomedical research.
- Further studies can explore its utility in disease diagnostics and monitoring.

