Complex coacervates as a foundation for synthetic underwater adhesives.
Complex coacervates as a foundation for synthetic underwater adhesives.
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DOI：
10.1016/j.cis.2010.10.009
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发表时间：
2011-09-14
影响因子：
15.6
通讯作者：
Shao H
中科院分区：
文献类型：
--
作者：
Stewart RJ;Wang CS;Shao H
基于胶蛋白的多酸性和多碱性以及生理ph值下相反电荷的平衡，复杂凝聚作用被认为在沙堡虫（加利福尼亚沙堡虫）水下生物粘合剂的形成中发挥作用。分泌系统的形态学研究表明，自然过程并不涉及通常定义的复杂凝聚。这种区别可能并不重要，因为静电相互作用可能在沙堡胶的形成中起重要作用。复杂的凝聚作用也被应用于球蝇幼虫的黏附水下丝纤维的形成和贻贝的黏附斑块。一个类似于复杂凝聚的过程，即通过静电结合使生物聚电解质凝结和脱水，似乎对球蝇丝是合理的。这一点很清楚，沙堡胶复合凝聚模型为合成具有修复湿组织潜力的仿生水性水下粘合剂提供了有价值的蓝图。
Complex coacervation was proposed to play a role in the formation of the underwater bioadhesive of the Sandcastle worm (Phragmatopoma californica) based on the polyacidic and polybasic nature of the glue proteins and the balance of opposite charges at physiological pH. Morphological studies of the secretory system suggested the natural process does not involve complex coacervation as commonly defined. The distinction may not be important because electrostatic interactions likely play an important role in formation of the sandcastle glue. Complex coacervation has also been invoked in the formation of adhesive underwater silk fibers of caddisfly larvae and the adhesive plaques of mussels. A process similar to complex coacervation, that is, condensation and dehydration of biopolyelectrolytes through electrostatic associations, seems plausible for the caddisfly silk. This much is clear, the sandcastle glue complex coacervation model provided a valuable blueprint for the synthesis of a biomimetic, waterborne, underwater adhesive with demonstrated potential for repair of wet tissue.
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