Laser-Assisted Visible-Light Polymerization for Rapid Synthesis of Molecularly Imprinted Polymers

Area of Science:

• Polymer Chemistry
• Green Chemistry
• Analytical Chemistry

Background:

• Increasing demand for sustainable and efficient synthesis of molecularly imprinted polymers (MIPs).
• Conventional methods often involve toxic initiators and energy-intensive processes.
• Need for rapid, low-toxicity methods for environmental monitoring applications.

Purpose of the Study:

• To develop a novel, green, laser-assisted method for synthesizing MIPs.
• To utilize visible light and a green photoinitiator for controlled polymerization.
• To create MIPs for detecting environmental contaminants like bisphenol A and sulfamethoxazole.

Main Methods:

• Visible laser (450 nm) and erythrosine B as a photoinitiator for MIP synthesis.
• Optimization of synthesis for speed and scalability.
• Integration of MIPs into paper-based analytical devices (MIP-PADs) for on-site detection.

Main Results:

• Successful synthesis of MIPs for bisphenol A and sulfamethoxazole using the laser-assisted method.
• Developed MIP-PAD sensors demonstrated high recovery rates (98.6% in tap water, 90.2% in river water).
• Low relative standard deviations (RSDs) below 1.88% indicate high precision.

Conclusions:

• The study presents a green, efficient, and controllable laser-assisted polymerization technique for MIP synthesis.
• This method offers a viable and sustainable alternative to traditional MIP synthesis approaches.
• The developed MIP-PADs show promise for rapid, on-site environmental monitoring.