Advancement in Paper-Based Electrochemical Biosensing and Emerging Diagnostic Methods

Area of Science:

• Analytical Chemistry
• Biomedical Engineering
• Materials Science

Background:

• Paper-based analytical devices (PADs) are revolutionizing point-of-care (POC) testing.
• Electrochemical sensing integrated with paper substrates forms electrochemical paper-based analytical devices (ePADs).
• ePADs offer advantages like self-fluidic control, low cost, and environmental friendliness for POC applications.

Purpose of the Study:

• To summarize the current state and applications of ePADs.
• To provide commentary on the practical utility of ePADs in the field.
• To highlight future directions for ePAD development.

Main Methods:

• Review of current literature on electrochemical paper-based analytical devices.
• Analysis of the advantages and limitations of ePADs.
• Discussion of emerging trends and future prospects in ePAD technology.

Main Results:

• ePADs demonstrate significant promise for sensitive and versatile (bio)chemical analyte detection.
• Paper-based platforms offer inherent benefits for portable and cost-effective diagnostics.
• The study identifies key areas for advancement in ePAD design and functionality.

Conclusions:

• ePADs are a rapidly advancing field with substantial potential for POC diagnostics.
• Future research will focus on novel paper-based systems, enhanced biocatalysts, and integration with AI and 3D printing.
• Continued development of ePADs is expected to improve diagnostic capabilities and accessibility.