Hydrogel-Based Biosensors for Bacterial Infections

Area of Science:

• Biomaterials Science
• Sensor Technology
• Infectious Disease Diagnostics

Background:

• Hydrogels possess excellent biodegradability, biocompatibility, and functionalization properties, making them suitable for biosensor development.
• Hydrogel biosensors can detect bacterial infections by responding to microenvironmental changes or interacting with bacterial surfaces.
• Early diagnosis and treatment of bacterial infections are crucial for effective management and antibiotic stewardship.

Purpose of the Study:

• To review recent advancements in hydrogel-based biosensors for bacterial infection detection and treatment.
• To discuss hydrogel biosensors that utilize pH changes, bacterial secretions, or direct surface interactions.
• To explore hydrogel biosensors enabling simultaneous diagnosis and on-demand treatment for point-of-care applications.

Main Methods:

• Review of literature on hydrogel biosensor technologies for bacterial infections.
• Categorization of biosensors based on detection mechanisms (pH, enzymes, antigens, surface receptors).
• Discussion of integrated diagnostic and therapeutic hydrogel systems.

Main Results:

• Hydrogel biosensors show promise for early bacterial infection diagnosis through various sensing mechanisms.
• Biosensors responsive to pH, bacterial secretions, and direct surface interactions are presented.
• Emerging hydrogel systems offer combined bacteria diagnosis and on-demand treatment capabilities.

Conclusions:

• Hydrogel biosensors represent a significant advancement in the early detection and management of bacterial infections.
• The development of point-of-care hydrogel biosensors with integrated treatment functions is a key future direction.
• Addressing current challenges will further enhance the clinical utility of hydrogel biosensors for infectious diseases.