Smart Dressing Speeds Healing, Cuts Antibiotic Resistance

New wound dressing material releases antibiotics only when harmful bacteria are present.

Mar. 20, 2026 at 5:06am

Got story updates? Submit your updates here. ›

Biomedical engineers from Brown University have developed a new wound dressing material that releases antibiotic drugs only when harmful bacteria are present in a wound. The material is a smart hydrogel loaded with an antibiotic cargo that can degrade and release the antibiotics when enzymes produced by harmful bacteria are detected, helping to rapidly clear wound infections and accelerate healing while reducing the unnecessary use of antibiotics.

Why it matters

Antimicrobial resistance is a major global problem, so new approaches are needed to use antibiotics more judiciously. This smart hydrogel dressing can limit exposure to antibiotics when they are not needed, while still providing the necessary medication when harmful bacteria are present, helping to combat the rise of antibiotic-resistant 'superbugs'.

The details

The hydrogel uses a crosslinker that degrades when it comes into contact with enzymes called beta-lactamases, which are produced by a wide variety of harmful bacteria. This degradation allows the hydrogel structure to fall apart and release the antibiotic cargo inside. In experiments, the material only degraded when beta-lactamase-producing bacteria were present, while staying intact when only harmless bacteria were present, preventing unnecessary antibiotic release. Studies in mice also showed the hydrogel could fully eradicate bacterial infection in wounds and outperform a commonly used antimicrobial dressing.

  • The research was published in the journal Science Advances on March 20, 2026.

The players

Anita Shukla

A professor in Brown University's School of Engineering who led the development of the smart hydrogel wound dressing.

Brown University

The institution where the biomedical engineers who developed the new wound dressing material are based.

Got photos? Submit your photos here. ›

What they’re saying

“Antimicrobial resistance is a major problem worldwide, so we need better approaches for how we use antibiotics. We've developed a material that releases antibiotics only when harmful bacteria are present, so it limits exposure to antibiotics when they're not needed but still provides these important medications when they are needed.”

— Anita Shukla, Professor, Brown University School of Engineering

What’s next

The research team has patented the new material and is working toward further advancement of the technology for potential future commercialization.

The takeaway

This smart hydrogel wound dressing represents a promising new approach to fighting wound infections while conserving critical antibiotics, helping to address the growing global threat of antimicrobial resistance.