ACS Appl Mater Interfaces:P15偶联钛表面可有有效增强骨整合

2019-10-25 不详 网络

钛(Ti)及其合金由于其优异的物理性能和生物相容性而被用于整形外科和牙科植入物中。尽管与聚合物植入物相比,钛具有更好的骨传导性能,但仍需要改善骨骼生长特性才能提高手术效果并改善康复手术干预。本研究中,我们展示了一种新颖的表面改性策略,可通过表面引发的原子转移自由基聚合(SI-ATRP)通过反应共聚物的接枝过程来增强Ti表面的骨传导性。然后,成功地进行了P15肽(成骨细胞结合基序)的聚合后缀合。体外

钛(Ti)及其合金由于其优异的物理性能和生物相容性而被用于整形外科和牙科植入物中。尽管与聚合物植入物相比,钛具有更好的骨传导性能,但仍需要改善骨骼生长特性才能提高手术效果并改善康复手术干预。

本研究中,我们展示了一种新颖的表面改性策略,可通过表面引发的原子转移自由基聚合(SI-ATRP)通过反应共聚物的接枝过程来增强Ti表面的骨传导性。然后,成功地进行了P15肽(成骨细胞结合基序)的聚合后缀合。体外研究表明,表面修饰可促进成骨细胞在6和24 h附着在Ti盘上。此外,对于表面改性的钛,成骨细胞的矿物质基质沉积要大于随机吸附到钛表面的普通钛和P15。

综上所述,这些结果表明,将P15后聚合并入具有聚合物界面的Ti表面的策略可能会改善骨整合的结果,从而提高患者的生活质量。

原始出处:

Fu L, Omi M, et al., Covalent Attachment of P15 Peptide to Ti Alloy Surface Modified with Polymer to Enhance Osseointegration of Implants. ACS Appl Mater Interfaces. 2019 Oct 10. doi: 10.1021/acsami.9b14651.

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    2020-07-12 30397613
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    2019-10-27 yaanren
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