Molecularly imprinted polymers for sample preparation and biosensing in food analysis: Progress and perspectives

Area of Science:

• Analytical Chemistry
• Materials Science
• Food Science

Background:

• Molecularly imprinted polymers (MIPs) are synthetic receptors mimicking biological systems.
• MIPs exhibit high selectivity and binding capacity for target analytes.
• Their stability under harsh conditions makes them suitable for complex matrices.

Purpose of the Study:

• To review the synthesis and applications of MIPs in food analysis.
• To highlight imprinting methods for food templates.
• To discuss limitations and future perspectives of MIPs in food analysis.

Main Methods:

• MIPs utilized in solid-phase extraction (SPE) and solid-phase microextraction (SPME).
• Integration of MIPs with magnetic bead extraction for simplified sample handling.
• Application of MIPs as receptors in electrochemical, optical, and mass biosensors.

Main Results:

• MIPs effectively minimize food matrix effects.
• Improved analyte recoveries and lower detection limits achieved using MIPs.
• MIPs demonstrate potential as robust alternatives to bioreceptors in biosensing.

Conclusions:

• MIPs show significant promise for selective analyte detection in food.
• Further development is needed for commercialization of MIP technology in food analysis.
• Future research should focus on optimizing MIP synthesis and expanding their application scope.