A Wearable Bioelectronic Patch With Adaptive Photodynamic and Electrical Stimulation for Drug-Resistant Bacteria...

Area of Science:

• Biomedical Engineering
• Wound Healing Research
• Infectious Diseases

Background:

• Drug-resistant bacterial infections impede wound healing, leading to chronic non-healing wounds.
• Current treatments often struggle with efficacy against resistant strains and managing the complex healing process.

Purpose of the Study:

• To develop a smart wearable bioelectronic patch for adaptive management of drug-resistant bacteria-infected burn wounds.
• To integrate real-time diagnostics with on-demand therapeutic modalities for infection control and tissue regeneration.

Main Methods:

• Designed a bioelectronic patch with integrated sensors for temperature monitoring (infection indicator).
• Incorporated photodynamic therapy (PDT) for antibiotic-free bacterial eradication and electrical stimulation (ES) for tissue regeneration.
• Tested the patch's efficacy in vitro and in vivo models against methicillin-resistant Staphylococcus aureus (MRSA).

Main Results:

• The patch autonomously detected infection-induced temperature rise and activated PDT to eliminate MRSA.
• Subsequent ES activation promoted cellular proliferation and migration, accelerating wound healing.
• Demonstrated potent antibiotic-free antibacterial efficacy and significantly enhanced burn wound healing in models.

Conclusions:

• The developed bioelectronic patch offers a smart, adaptive platform for managing complex infected wounds.
• This integrated approach synchronizes diagnostics and therapeutics for dynamic wound management.
• Provides a promising antibiotic-free strategy for combating drug-resistant bacteria in wound care.