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Related Experiment Video

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Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization

Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization

Published on: December 29, 2013

Unlocking Wearable Microbial Fuel Cells for Advanced Wound Infection Treatment.

Maryam Rezaie¹, Zahra Rafiee¹, Seokheun Choi^1,2

¹Bioelectronics & Microsystems Laboratory, Department of Electrical & Computer Engineering, State University of New York at Binghamton, Binghamton, New York 13902, United States.

ACS Applied Materials & Interfaces

|July 1, 2024

Summary

This summary is machine-generated.

This study introduces a novel living wound dressing using Bacillus subtilis endospores in a microbial fuel cell. It generates electricity and antibacterial agents, effectively treating infected wounds.

Keywords:

Bacillus subtilis antibacterial agents electrical stimulation infected wounds wearable microbial fuel cells

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Area of Science:

Biomedical Engineering
Materials Science
Microbiology

Background:

Inadequate infection control in traditional wound dressings promotes antibiotic resistance.
Need for advanced wound care solutions to accelerate healing and reduce healthcare burdens.

Purpose of the Study:

To develop a dual-functional living wound dressing with autonomous antibacterial and electrical stimulation capabilities.
To leverage spore-forming Bacillus subtilis within a wearable microbial fuel cell (MFC) framework for enhanced wound infection control.

Main Methods:

Utilized Bacillus subtilis endospores as biocatalysts in a wearable MFC framework with a conductive hydrogel on a paper substrate.
Engineered endospores to produce electricity and antibacterial compounds upon reactivation in wound exudate.
Synthesized tin oxide and copper oxide nanoparticles on endospore surfaces to augment antibacterial efficacy and electrical stimulation.

Main Results:

Demonstrated effective infection control against Pseudomonas aeruginosa, Escherichia coli, and Staphylococcus aureus biofilms in vitro and ex vivo.
The MFC framework provided a stable, moist environment conducive to wound healing.
Bacillus subtilis successfully outcompeted pathogens for resources, inhibiting infection.

Conclusions:

The novel wearable MFC-based dressing offers a potent, self-sustaining solution for treating infected wounds.
This approach represents a significant advancement in smart wound care, addressing limitations of conventional treatments and combating antimicrobial resistance.