Novel paper-based electroanalytical tools for food surveillance

Area of Science:

• Analytical Chemistry
• Materials Science
• Food Science

Background:

• Developing accessible analytical strategies for food quality and safety is crucial.
• Existing methods often require skilled personnel and complex laboratory setups.
• There is a need for simple, point-of-need testing solutions in the agri-food sector.

Purpose of the Study:

• To highlight recent advances in paper-based electrochemical sensors for food surveillance.
• To showcase the use of novel paper-based materials in developing user-friendly analytical tools.
• To demonstrate the potential of these methods for routine food and beverage analysis.

Main Methods:

• Utilizing paper-based materials to create miniaturized electrochemical biosensors.
• Developing sensors on copy paper for specific molecule quantification (e.g., ethanol).
• Integrating printed electronics with paper supports for food supplement analysis (e.g., ascorbic acid).

Main Results:

• Demonstrated successful quantification of ethanol in beer using a copy paper biosensor.
• Showcased the measurement of ascorbic acid in food supplements using printed electronics on paper.
• Highlighted the potential of paper-based sensors to reduce costs and operational complexity.

Conclusions:

• Paper-based electrochemical approaches offer a viable solution for accessible food analysis.
• These methods significantly reduce the gap between laboratory testing and point-of-need applications.
• Continued innovation in materials and manufacturing will enable widespread implementation of at-need food analysis.