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Fast Curing Multifunctional Tissue Adhesives of Sericin-Based Polyurethane-Acrylates for Sternal Closure

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dc.contributor.author Balcioglu, S.
dc.contributor.author Noma, S.A.A.
dc.contributor.author Ulu, A.
dc.contributor.author Karaaslan-Tunc, M.G.
dc.contributor.author Ozhan, O.
dc.contributor.author Koytepe, S.
dc.contributor.author Parlakpinar, H.
dc.contributor.author Vardi, N.
dc.contributor.author Colak, M.C.
dc.contributor.author Ates, B.
dc.date.accessioned 2022-10-06T12:54:40Z
dc.date.available 2022-10-06T12:54:40Z
dc.date.issued 2022
dc.identifier.issn 19448244 (ISSN)
dc.identifier.uri http://hdl.handle.net/11616/72379
dc.description.abstract The use of wire cerclage after sternal closure is the standard method because of its rigidity and strength. Despite this, they have many disadvantages such as tissue trauma, operator-induced failures, and the risk of infection. To avoid complications during sternotomy and promote tissue regeneration, tissue adhesives should be used in post-surgical treatment. Here, we report a highly biocompatible, biomimetic, biodegradable, antibacterial, and UV-curable polyurethane-acrylate (PU-A) tissue adhesive for sternal closure as a supportive to wire cerclage. In the study, PU-As were synthesized with variable biocompatible monomers, such as silk sericin, polyethylene glycol, dopamine, and an aliphatic isocyanate 4,4′-methylenebis(cyclohexyl isocyanate). The highest adhesion strength was found to be 4322 kPa, and the ex vivo compressive test result was determined as 715 kPa. The adhesive was determined to be highly biocompatible (on L-929 cells), biodegradable, and antibacterial (on Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus bacteria). Finally, after opening the sternum of rats, the adhesive was applied to bond the bones and cured with UV for 5 min. According to the results, there was no visible inflammation in the adhesive groups, while some animals had high inflammation in the cyanoacrylate and wire cerclage groups. These results indicate that the adhesive may be suitable for sternal fixation by preventing the disadvantages of the steel wires and promoting tissue healing. © 2022 The Authors. Published by American Chemical Society.
dc.source ACS Applied Materials and Interfaces
dc.title Fast Curing Multifunctional Tissue Adhesives of Sericin-Based Polyurethane-Acrylates for Sternal Closure


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