新的型聚合物用于防表面
Andrea R Statz1, Robert J Meagher, Annelise E Barron
1Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Journal of the American Chemical Society
|June 2, 2005
概括
一种新型生物模拟型类聚合物,带有鱼灵感的类,可以在医疗设备上长期抵抗生物污染. 这种合成聚合物有效地防止蛋白质和细胞吸附,提高设备的安全性和性能.
科学领域:
- 生物材料科学 生物材料科学
- 表面化学 表面化学
- 聚合物科学 聚合物科学
背景情况:
- 医疗器械的生物污染是由蛋白质,细胞和微生物造成的,影响了性能和患者的安全.
- 现有的防涂层只能提供短期的防保护.
- 强大的,长期的防解决方案对于医疗和工业应用至关重要.
研究的目的:
- 开发一种新的仿生抗聚合物,用于长期保护表面.
- 为了创建一个合成的酸-酸结合体,模仿的粘合蛋白质.
- 评估开发的聚合物在医疗器械上的防效果.
主要方法:
- 合成了一个N替代的甘氨酸聚合物 (peptoid) 与一个C终端.
- 设计了类侧链,使其类似于聚乙烯甘醇 (PEG).
- 包含一个富含DOPA和Lys的序列,模仿贝粘附蛋白质用于表面粘附.
主要成果:
- 用-类结合物修改的表面显示血清蛋白质吸附显著减少.
- 在实验室中,经过修改的表面在5个多月内表现出对哺乳动物细胞附着的抗性.
- 生物仿真结合剂提供了强大而持久的抗物质.
结论:
- 开发的基于合成的抗聚合物为长期生物控制提供了有希望的解决方案.
- 这种仿生方法可用于提高医疗器械的性能和安全性.
- 该技术在生理,海洋和工业环境中具有潜在的应用.
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