Supramolecular Fluorescence Probe for Rapid Visual Detection of Pyrethroid and Composite Aerogel as a Pyrethroid...

Area of Science:

• Supramolecular chemistry
• Analytical chemistry
• Environmental science

Background:

• Pyrethroids pose environmental and health risks.
• Current detection methods for pyrethroids are complex and lack quantification capabilities.
• Efficient and rapid detection of pyrethroids remains a challenge.

Purpose of the Study:

• To develop a novel supramolecular fluorescence probe for quantitative pyrethroid monitoring.
• To create a rapid, selective, and sensitive method for pyrethroid detection.
• To enable on-site and visual detection of pyrethroids in environmental samples.

Main Methods:

• A supramolecular fluorescence probe was synthesized using albumin (ALB) and flavonoid-derived fluorophores (AFL).
• The probe's fluorescence emission shifts from yellow to green upon pyrethroid detection due to conformational changes.
• Test strips and aerogel-based sensors were fabricated for visual and adsorption-based detection.

Main Results:

• The AFL@ALB probe exhibited a rapid response (10 s) with a linear range of 0-72 μM and a limit of detection of 1.0773 μM.
• The probe demonstrated high selectivity and anti-interference capabilities.
• Successful on-site quantification was achieved using smartphone-integrated test strips and aerogel sensors for environmental samples.

Conclusions:

• The developed supramolecular fluorescence probe offers an efficient and sensitive method for pyrethroid detection.
• The probe facilitates rapid, visual, and on-site quantification of pyrethroids in environmental matrices.
• This work highlights the potential of supramolecular fluorescent materials in sensor development for environmental monitoring.