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Sallustio, V.; Rossi, M.; Mandrone, M.; Rossi, F.; Chiocchio, I.; Cerchiara, T.; Longo, E.; Fratini, M.; D'Amico, L.; Tromba, G.; Malucelli, E.; Protti, M.; Mercolini, L.; Di Blasio, A.; Aponte, M.; Blaiotta, G.; Abruzzo, A.; Bigucci, F.; Luppi, B.; Cappadone, C.
International journal of biological macromolecules, June 2024, 2024-06-00, 20240601, Volume: 272, Issue: Pt 2Journal Article
Glycyrrhiza glabra extract is widely known for its antioxidant and anti-inflammatory properties and can improve the wound healing process. The aim of this work was to shorten the time of the healing process by using an eco-sustainable wound dressing based on Spanish broom flexible cellulosic fabric by impregnation with G. glabra extract-loaded ethosomes. Chemical analysis of G. glabra extract was performed by LC-DAD-MS/MS and its encapsulation into ethosomes was obtained using the ethanol injection method. Lipid vesicles were characterized in terms of size, polydispersity index, entrapment efficiency, zeta potential, and stability. In vitro release studies, biocompatibility, and scratch test on 3T3 fibroblasts were performed. Moreover, the structure of Spanish broom dressing and its ability to absorb wound exudate was characterized by Synchrotron X-ray phase contrast microtomography (SR-PCmicroCT). Ethosomes showed a good entrapment efficiency, nanometric size, good stability over time and a slow release of polyphenols compared to the free extract, and were not cytotoxic. Lastly, the results revealed that Spanish broom wound dressing loaded with G. glabra ethosomes is able to accelerate wound closure by reducing wound healing time. To sum up, Spanish broom wound dressing could be a potential new green tool for biomedical applications.
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