Functional Nanomaterials and Nanocomposites for High-Performance Printed Biosensors

Area of Science:

• Materials Science
• Chemical Engineering
• Biomedical Engineering

Background:

• Printed biosensors offer rapid, low-cost, portable diagnostic solutions using scalable fabrication methods.
• Device performance hinges on printing processes and material characteristics like ink rheology and dispersion.

Purpose of the Study:

• To review recent advancements in printed biosensors, focusing on printing technologies and functional materials.
• To highlight the interplay between material design and printing strategies for enhanced biosensor development.

Main Methods:

• Discussion of common printing techniques: inkjet, screen, aerosol jet, and roll-to-roll gravure printing.
• Examination of material platforms: carbon nanomaterials, metal oxides, nanoparticles, conductive polymers, and composites.
• Analysis of factors influencing performance: conductivity, catalytic activity, immobilization, and flexibility.

Main Results:

• Printing techniques and material choices significantly impact biosensor architecture, performance, and reliability.
• Synergistic integration of material design and printing strategies is crucial for high-performance printed biosensors.

Conclusions:

• Further research is needed to address challenges in ink stability, post-processing, sensor reliability, and manufacturability.
• Optimized printing strategies and rational material design are essential for advancing practical printed biosensor applications.