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Peppermint oil (above) and cinnamon are key ingredients in a new wound treatment under development.

Credit: matka_Wariatka/iStock/Thinkstock

Abstract:
Infectious colonies of bacteria called biofilms that develop on chronic wounds and medical devices can cause serious health problems and are tough to treat. But now scientists have found a way to package antimicrobial compounds from peppermint and cinnamon in tiny capsules that can both kill biofilms and actively promote healing. The researchers say the new material, reported in the journal ACS Nano, could be used as a topical antibacterial treatment and disinfectant.

Peppermint oil and cinnamon could help treat and heal chronic wounds

Washington, DC | Posted on July 8th, 2015

Many bacteria clump together in sticky plaques in a way that makes them difficult to eliminate with traditional antibiotics. Doctors sometimes recommend cutting out infected tissues. This approach is costly, however, and because it's invasive, many patients opt out of treatment altogether. Essential oils and other natural compounds have emerged recently as alternative substances that can get rid of pathogenic bacteria, but researchers have had a hard time translating their antibacterial activity into treatments. Vincent M. Rotello and colleagues wanted to address this challenge.

The researchers packaged peppermint oil and cinnamaldehyde, the compound in cinnamon responsible for its flavor and aroma, into silica nanoparticles. The microcapsule treatment was effective against four different types of bacteria, including one antibiotic-resistant strain. It also promoted the growth of fibroblasts, a cell type that is important in wound healing.

The authors acknowledge funding from Firmenich, the National Institutes of Health and the National Science Foundation.

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Contacts:
Vincent M. Rotello, Ph.D.
Department of Chemistry
University of Massachusetts, Amherst
Amherst, MA 01003

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Michael Bernstein

202-872-6042

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Katie Cottingham, Ph.D.

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