{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T22:22:16Z","timestamp":1787782936854,"version":"build-2784847793"},"reference-count":70,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2024,1,15]],"date-time":"2024-01-15T00:00:00Z","timestamp":1705276800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Russian Science Foundation","award":["23-15-00481"],"award-info":[{"award-number":["23-15-00481"]}]},{"name":"Russian Science Foundation","award":["075-15-2021-596"],"award-info":[{"award-number":["075-15-2021-596"]}]},{"name":"Ministry of Science and Higher Education of the Russian Federation","award":["23-15-00481"],"award-info":[{"award-number":["23-15-00481"]}]},{"name":"Ministry of Science and Higher Education of the Russian Federation","award":["075-15-2021-596"],"award-info":[{"award-number":["075-15-2021-596"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Modern otology faces challenges in treating tympanic membrane (TM) perforations. Instead of surgical intervention, alternative treatments using biomaterials are emerging. Recently, we developed a robust collagen membrane using semipermeable barrier-assisted electrophoretic deposition (SBA-EPD). In this study, a collagen graft shaped like a sponge through SBA-EPD was used to treat acute and chronic TM perforations in a chinchilla model. A total of 24 ears from 12 adult male chinchillas were used in the study. They were organized into four groups. The first two groups had acute TM perforations and the last two had chronic TM perforations. We used the first and third groups as controls, meaning they did not receive the implant treatment. The second and fourth groups, however, were treated with the collagen graft implant. Otoscopic assessments were conducted on days 14 and 35, with histological evaluations and TM vibrational studies performed on day 35. The groups treated with the collagen graft showed fewer inflammatory changes, improved structural recovery, and nearly normal TM vibrational properties compared to the controls. The porous collagen scaffold successfully enhanced TM regeneration, showing high biocompatibility and biodegradation potential. These findings could pave the way for clinical trials and present a new approach for treating TM perforations.<\/jats:p>","DOI":"10.3390\/polym16020248","type":"journal-article","created":{"date-parts":[[2024,1,15]],"date-time":"2024-01-15T11:15:01Z","timestamp":1705317301000},"page":"248","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Collagen Matrix to Restore the Tympanic Membrane: Developing a Novel Platform to Treat Perforations"],"prefix":"10.3390","volume":"16","author":[{"given":"Mikhail","family":"Svistushkin","sequence":"first","affiliation":[{"name":"Department for ENT Diseases, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Svetlana","family":"Kotova","sequence":"additional","affiliation":[{"name":"Institute for Regenerative Medicine, Sechenov First Moscow State 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