具有细菌触发的抗生素释放的自我控制的蛋白质抗菌涂层,用于预防周围假肢感染
Hyun Sun Choi1, Jinyoung Yun1, Yeonsu Jeong1
1Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea.
Biomaterials
|January 3, 2024
概括
一种新型的贝粘合蛋白 (MAP) 涂层为骨科植入物提供了可自控的,持久的抗菌保护. 这种创新的涂层可以按需提供抗生素,防止感染和植入失败.
科学领域:
- 生物材料科学 生物材料科学
- 整形外科手术 整形外科手术
- 传染性疾病 传染性疾病
背景情况:
- 周围假肢感染是骨科植入物的一种严重并发症,通常涉及微生物生物膜.
- 目前的抗生素涂层面临着在植入过程中过早泄漏和机械故障的挑战.
- 需要强大的,自我控制的抗菌策略用于骨科植入物.
研究的目的:
- 开发一种可自控的蛋白质抗菌涂层,用于的骨科植入物.
- 为了实现长期的坚持和针对性的抗生素输送,以应对感染.
- 提高植入物涂层的机械稳定性和自我愈合特性.
主要方法:
- 使用类粘合蛋白 (MAP),因为其依赖pH值的金属协调和粘合性.
- 将MAP涂层装载在 gentamicin 中作为抗生素剂.
- 评估了涂层的粘附性,机械抗性和抗菌效果,在体外和体内对黄金菌菌的抗菌效果.
主要成果:
- 该MAP涂层证明了对基板的长期粘附.
- 抗生素的输送依赖于度,由感染诱导的酸化引发.
- 涂层显示完全抑制金黄色葡萄球菌的生长,解决了即时和延迟感染.
- 观察到优异的自愈粘合性能和抗划痕性能.
结论:
- 开发的带有抗生素的MAP水凝涂层提供了一种有前途的自我防御策略,可以对抗周围假肢感染.
- 这种方法提供了即时和可持续的杀菌活性,改善了骨科假肢的结果.
- 涂层的特性解决了传统抗菌策略的局限性,减少了植入物失败和病率.
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