Related Experiment Video
Updated: Aug 6, 2026
07:10
Split Hybridization Probe Utilizing a DNA Fluorescent Light-up Aptamer as a Signal Reporter for Sequence-Specific Nucleic Acid Analysis
Published on: July 8, 2025
Glyphosate Detection Using a Fast-Response Naphthalimide-Al3+ Fluorescent Probe With Visual Monitoring and
Summary
A new fluorescent probe, NAPA-Al3+, enables rapid and sensitive detection of the herbicide glyphosate. This technology offers a simple, low-cost method for monitoring glyphosate in food and the environment.
Area of Science:
- Analytical Chemistry
- Environmental Science
- Biochemistry
Background:
- Glyphosate, a widely used herbicide, poses environmental and health concerns due to its persistence.
- Detecting glyphosate is challenging due to its high polarity and lack of chromophores.
Purpose of the Study:
- To develop a rapid, sensitive, and user-friendly fluorescent probe for glyphosate detection.
- To create a portable and visual method for glyphosate monitoring.
Main Methods:
- A naphthalimide-based fluorescent probe (NAPA-Al3+) was synthesized by coordinating a fluorophore with Al3+ ions.
- The probe's fluorescence is quenched and restored upon glyphosate binding, enabling detection.
- Portable test strips and smartphone-assisted colorimetric analysis were employed for visual detection.
Main Results:
- The NAPA-Al3+ probe detected glyphosate within 5 seconds with a low detection limit of 57.5 nM.
- Portable test strips showed a visual blue-to-green color change correlated with glyphosate concentration.
- Smartphone analysis allowed for real-time, quantitative glyphosate detection.
Conclusions:
- The NAPA-Al3+ probe offers a highly effective, simple, and low-cost strategy for glyphosate monitoring.
- This technology provides a promising platform for food safety regulation and environmental surveillance.
- The developed method outperforms existing glyphosate detection techniques in terms of speed and sensitivity.
