Researchers have found a way to pack antimicrobial compounds from peppermint and cinnamon in tiny capsules that can both kill biofilms and actively promote healing, as they have found that peppermint oil and cinnamon could help treat chronic wounds.
The new material could be used as a topical antibacterial treatment and disinfectant. Many bacteria clump together in sticky plaques in a way that makes them difficult to eliminate with traditional antibiotics.
AdvertisementDoctors 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 a hard time translating their antibacterial activity into treatments.
Vincent M. Rotello and colleagues wanted to address this challenge. The researchers packed 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 finding is reported in the journal ACS Nano.
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