HOCl-producing Electrochemical Bandage is Active in Murine Polymicrobial Wound Infection

Area of Science:

• Biomedical Engineering
• Infectious Diseases
• Materials Science

Background:

• Wound infections caused by antibiotic-resistant pathogens like MRSA and P. aeruginosa are a growing global health concern.
• Polymicrobial infections and biofilms present significant challenges for conventional antimicrobial therapies.
• Hypochlorous acid (HOCl) is a potent antimicrobial agent with potential for novel therapeutic applications.

Approach:

• An electrochemical bandage (e-bandage) was developed to generate HOCl *in situ* for wound treatment.
• The e-bandage's efficacy was evaluated in murine models of polymicrobial wound infections involving MRSA and P. aeruginosa.
• Bacterial loads, wound healing, and tissue toxicity were assessed and compared to control groups.

Key Points:

• The HOCl-producing e-bandage significantly reduced bacterial loads of MRSA and P. aeruginosa in polymicrobial infections.
• The e-bandage demonstrated efficacy against MRSA and P. aeruginosa when present individually in wound infections.
• Antimicrobial efficacy was achieved without compromising wound healing or causing observable tissue toxicity.
• Systemic antibiotics did not improve the e-bandage's effectiveness, suggesting its potential as a standalone therapy.

Conclusions:

• The HOCl-generating e-bandage represents a promising novel antimicrobial strategy for managing complex wound infections.
• This technology offers a potential solution for infections involving antibiotic-resistant bacteria and polymicrobial communities.
• Further research supports the e-bandage as an effective alternative or adjunct therapy in combating antimicrobial resistance in wound care.