Cyclodextrin Host-Guest Recognition in Glucose-Monitoring Sensors

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Materials Science

Background:

• Diabetes mellitus is a global health crisis requiring effective blood glucose monitoring (GM).
• Current GM technologies face challenges in noninvasiveness, accuracy, and continuous monitoring.
• Cyclodextrins (CDs) possess unique host-guest interaction capabilities beneficial for sensor development.

Purpose of the Study:

• To review and summarize cyclodextrin (CD)-based blood glucose sensors.
• To explore the chemistry, efficiency, and accuracy of CD-based glucose detection.
• To highlight the potential of CD-based sensors for continuous GM in diabetes.

Main Methods:

• Categorization of CD-based sensors into four modification strategies.
• Review of literature on CD-modified boronic acid, mediators, nanoparticles, and functionalized polymers.
• Analysis of sensor performance regarding sensitivity, selectivity, and stability.

Main Results:

• CDs improve the sensitivity, selectivity, biocompatibility, and stability of glucose sensors.
• Four main categories of CD-based sensors were identified based on modification approaches.
• CD-based sensors demonstrate significant potential for accurate and reliable glucose detection.

Conclusions:

• CD-based sensors represent a promising advancement for continuous glucose monitoring.
• The integration of CDs addresses key limitations in current GM technologies.
• Further development of CD-based sensors can significantly improve diabetes management and patient outcomes.