A Concise and Systematic Review on Non-Invasive Glucose Monitoring for Potential Diabetes Management

Area of Science:

• Biomedical Engineering
• Medical Devices
• Analytical Chemistry

Background:

• Current diabetes management relies on invasive blood pricking.
• Minimally invasive continuous glucose monitoring (CGM) offers improvements but has limitations like pain, cost, and infection risk.
• Non-invasive glucose monitoring (NIGM) is a long-standing research goal to overcome these challenges.

Purpose of the Study:

• To review recent advances and challenges in non-invasive glucose monitoring techniques.
• To classify NIGM methods based on detection principles.
• To explore the evolution of NIGM from bench-top to wearable devices.

Main Methods:

• Review of research on non-invasive glucose monitoring techniques.
• Classification into four main categories: optical spectroscopy, photoacoustic spectroscopy, electromagnetic sensing, and nanomaterial-based sensing.
• Focus on the transition towards smart wearable devices for continuous monitoring.

Main Results:

• Four primary non-invasive glucose monitoring methods have been identified and reviewed.
• Significant research progress has been made in developing these technologies.
• The potential for integrating these methods into wearable devices is highlighted.

Conclusions:

• Non-invasive glucose monitoring holds significant promise for efficient, affordable, and pain-free diabetes management.
• Advancements in optical, photoacoustic, electromagnetic, and nanomaterial sensing are paving the way for wearable NIGM.
• The future of diabetes management may involve personalized, continuous, and non-invasive monitoring solutions.