A self-assembled gold-spiked nanosphere based paper assay for sensitive glucose detection

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Analytical Chemistry

Background:

• Accurate glucose monitoring is vital for managing health conditions.
• Existing methods for glucose detection can be invasive or inconvenient.
• There is a need for simple, sensitive, and non-invasive glucose detection platforms.

Purpose of the Study:

• To develop a sensitive and convenient system for non-invasive glucose detection in sweat.
• To integrate self-assembled gold-spiked nanosphere (GSN) nanozymes with paper-based analytical devices (PADs).
• To evaluate the performance of the GSN-nanozyme/PAD system for sweat glucose monitoring.

Main Methods:

• Fabrication of self-assembled gold-spiked nanosphere (GSN) nanozymes.
• Integration of GSN nanozymes with paper-based analytical devices (PADs).
• Testing the system's sensitivity, selectivity, and interference from common sweat components.

Main Results:

• The GSN nanozyme demonstrated excellent glucose oxidase-like catalytic activity.
• The developed system achieved sensitive and selective glucose detection in sweat.
• The platform showed minimal interference from common sweat substances, indicating high specificity.

Conclusions:

• The GSN nanozyme combined with PADs provides a fast, cost-effective, and non-invasive method for glucose detection.
• This system shows significant potential for practical biomedical applications in health monitoring.
• The developed platform offers a promising alternative for convenient and reliable glucose monitoring.