RT Journal Article T1 Ionotropic Gelation-Based Synthesis of Chitosan-Metal Hybrid Nanoparticles Showing Combined Antimicrobial and Tissue Regenerative Activities A1 Lozano Chamizo, Laura A1 Luengo Morato, Yurena A1 Ovejero Paredes, Karina A1 Contreras Cáceres, Rafael A1 Marciello, Marzia A1 Filice, Marco AB The treatment of skin wounds poses significant clinical challenges, including the risk of bacterial infection. In particular due to its antimicrobial and tissue regeneration abilities chitosan (a polymeric biomaterial obtained by the deacetylation of chitin) has received extensive attention for its effectiveness in promoting skin wound repair. On the other hand, due to their intrinsic characteristics, metal nanoparticles (e.g., silver (Ag), gold (Au) or iron oxide (Fe3O4)) have demonstrated therapeutic properties potentially useful in the field of skin care. Therefore, the combination of these two promising materials (chitosan plus metal oxide NPs) could permit the achievement of a promising nanohybrid with enhanced properties that could be applied in advanced skin treatment. In this work, we have optimized the synthesis protocol of chitosan/metal hybrid nanoparticles by means of a straightforward synthetic method, ionotropic gelation, which presents a wide set of advantages. The synthesized hybrid NPs have undergone to a full physicochemical characterization. After that, the in vitro antibacterial and tissue regenerative activities of the achieved hybrids have been assessed in comparison to their individual constituent. As result, we have demonstrated the synergistic antibacterial plus the tissue regeneration enhancement of these nanohybrids as a consequence of the fusion between chitosan and metallic nanoparticles, especially in the case of chitosan/Fe3O4 hybrid nanoparticles. SN 2073-4360 YR 2021 FD 2021 LK https://hdl.handle.net/20.500.14352/100710 UL https://hdl.handle.net/20.500.14352/100710 LA eng NO Lozano Chamizo, Laura, et al. «Ionotropic Gelation-Based Synthesis of Chitosan-Metal Hybrid Nanoparticles Showing Combined Antimicrobial and Tissue Regenerative Activities». Polymers, vol. 13, n.o 22, noviembre de 2021, p. 3910. https://doi.org/10.3390/polym13223910. NO Comunidad de Madrid NO Federación Española de Enfermedades Raras NO Universidad Complutense de Madrid NO Instituto de Salud Carlos III NO Centro Nacional de Investigaciones Cardiovasculares NO Ministerio de Economía, Comercio y Empresa (España) DS Docta Complutense RD 19 jun 2026