PMID- 36976053 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230331 IS - 2079-4983 (Print) IS - 2079-4983 (Electronic) IS - 2079-4983 (Linking) VI - 14 IP - 3 DP - 2023 Feb 26 TI - Ce-MBGs Loaded with Gentamicin: Characterization and In Vitro Evaluation. LID - 10.3390/jfb14030129 [doi] LID - 129 AB - Mesoporous Bioactive Glasses (MBGs) are biomaterials widely used in tissue engineering, particularly for hard tissue regeneration. One of the most frequent postoperative complications following a biomaterial surgical implant is a bacterial infection, which usually requires treatment by the systemic administration of drugs (e.g., antibiotics). In order to develop biomaterials with antibiotic properties, we investigated cerium-doped MBGs (Ce-MBGs) as in situ-controlled drug delivery systems (DDSs) of gentamicin (Gen), a wide spectrum antibiotic commonly employed against bacteria responsible of postoperative infections. Here we report the optimization of Gen loading on MBGs and the evaluation of the antibacterial properties and of retention of bioactivity and antioxidant properties of the resulting materials. The Gen loading (up to 7%) was found to be independent from cerium content, and the optimized Gen-loaded Ce-MBGs retain significant bioactivity and antioxidant properties. The antibacterial efficacy was verified up to 10 days of controlled release. These properties make Gen-loaded Ce-MBGs interesting candidates for simultaneous hard tissue regeneration and in situ antibiotic release. FAU - Fraulini, Francesca AU - Fraulini F AD - Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy. FAU - Raimondi, Stefano AU - Raimondi S AUID- ORCID: 0000-0003-0944-6677 AD - Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy. FAU - Candeliere, Francesco AU - Candeliere F AUID- ORCID: 0000-0003-4950-5467 AD - Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy. FAU - Ranieri, Raffaella AU - Ranieri R AD - Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy. FAU - Zambon, Alfonso AU - Zambon A AD - Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy. FAU - Lusvardi, Gigliola AU - Lusvardi G AUID- ORCID: 0000-0002-0772-6037 AD - Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy. LA - eng PT - Journal Article DEP - 20230226 PL - Switzerland TA - J Funct Biomater JT - Journal of functional biomaterials JID - 101570734 PMC - PMC10054597 OTO - NOTNLM OT - antibacterial activity OT - bioactive glasses OT - bioactivity OT - cerium COIS- There are no conflict to declare. EDAT- 2023/03/29 06:00 MHDA- 2023/03/29 06:01 PMCR- 2023/02/26 CRDT- 2023/03/28 10:22 PHST- 2023/01/16 00:00 [received] PHST- 2023/02/23 00:00 [revised] PHST- 2023/02/25 00:00 [accepted] PHST- 2023/03/29 06:01 [medline] PHST- 2023/03/28 10:22 [entrez] PHST- 2023/03/29 06:00 [pubmed] PHST- 2023/02/26 00:00 [pmc-release] AID - jfb14030129 [pii] AID - jfb-14-00129 [pii] AID - 10.3390/jfb14030129 [doi] PST - epublish SO - J Funct Biomater. 2023 Feb 26;14(3):129. doi: 10.3390/jfb14030129.