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生物立方膜
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作者 吕文华 刘菲菲 邓瑜如 《生物化学与生物物理进展》 SCIE CAS CSCD 北大核心 2018年第1期5-15,共11页
脂质立方液晶在药物载体方面有着较为广泛的应用.然而在生物体内,有一种与之类似的结构,称为立方膜.具体而言,立方膜就是指含有脂蛋白的三维周期性脂质双分子单层、双层或多层的纳米曲面结构.亚细胞器中的这种生物立方膜结构可能也能作... 脂质立方液晶在药物载体方面有着较为广泛的应用.然而在生物体内,有一种与之类似的结构,称为立方膜.具体而言,立方膜就是指含有脂蛋白的三维周期性脂质双分子单层、双层或多层的纳米曲面结构.亚细胞器中的这种生物立方膜结构可能也能作为药物载体,同时有抗氧化、紫外滤光等潜在作用.本文将主要介绍立方膜的研究进展、形成机理,以及在自然界中的存在情况,及其功能和潜在的应用价值. 展开更多
关键词 生物膜 膜脂质 立方膜 立方相
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Bicontinuous cubic phases in biological and artificial self-assembled systems
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作者 Congcong Cui Yuru Deng Lu Han 《Science China Materials》 SCIE EI CSCD 2020年第5期686-702,共17页
Nature has created innumerable life forms with miraculous hierarchical structures and morphologies that are optimized for different life events through evolution over billions of years.Bicontinuous cubic structures,wh... Nature has created innumerable life forms with miraculous hierarchical structures and morphologies that are optimized for different life events through evolution over billions of years.Bicontinuous cubic structures,which are often described by triply periodic minimal surfaces(TPMSs)and their constant mean curvature(CMC)/parallel surface companions,are of special interest to various research fields because of their complex form with unique physical functionalities.This has prompted the scientific community to fully understand the formation,structure,and properties of these materials.In this review,we summarize and discuss the formation mechanism and relationships of the relevant biological structures and the artificial self-assembly systems.These structures can be formed through biological processes with amazing regulation across a great length scales;nevertheless,artificial construction normally produces the structure corresponding to the molecular size and shape.Notably,the block copolymeric system is considered to be an applicable and attractive model system for the study of biological systems due to their versatile design and rich phase behavior.Some of the phenomena found in these two systems are compared and discussed,and this information may provide new ideas for a comprehensive understanding of the relationship between molecular shape and resulting interface curvature and the selfassembly process in living organisms.We argue that the copolymeric system may serve as a model to understand these biological systems and could encourage additional studies of artificial self-assembly and the creation of new functional materials. 展开更多
关键词 triply periodic MINIMAL surface SELF-ASSEMBLY CUBIC membrane LYOTROPIC liquid crystal block COPOLYMER
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