Tunable self-assembly of genetically engineered silk--elastin-like protein polymers.

Tunable self-assembly of genetically engineered silk--elastin-like protein polymers.
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基因工程丝 - 类似雌激素的蛋白质聚合物的可调自组装。

DOI:
10.1021/bm201165h
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发表时间:
2011-11-14
期刊:
影响因子:
6.2
通讯作者:
Kaplan DL
Kaplan DL
中科院分区:
化学2区
文献类型:
--
作者:
Xia XX;Xu Q;Hu X;Qin G;Kaplan DL

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丝弹性蛋白样蛋白聚合物(SELPs)由丝和弹性蛋白的重复单元组成,联合收割机了丝和弹性蛋白的一系列优异的物理和生物学特性。由于其独特的性质,SELP已被广泛制成各种材料,用于药物输送和组织工程。然而,人们对这些非凡的聚合物的基本自组装特性知之甚少。在这里,我们提出了一个两步自组装过程中的SELP在水溶液中的第一次和报告的重要性,丝弹性蛋白块在SELP的重复单元上的SELP的组装。通过精确调节丝与弹性蛋白的比例,可以可逆或不可逆地产生包括纳米颗粒、水凝胶和纳米纤维在内的各种结构。这种组装过程可能为生物传感器、组织工程和药物输送提供创新的智能材料。此外,在这项研究中,新开发的SELPs可能是潜在的有用的生物材料的控制药物输送和生物医学工程。
Silk-elastin-like protein polymers (SELPs), consisting of the repeating units of silk and elastin blocks, combine a set of outstanding physical and biological properties of silk and elastin. Due to the unique properties, SELPs have been widely fabricated into various materials for the applications in drug delivery and tissue engineering. However, little is known about the fundamental self-assembly characteristics of these remarkable polymers. Here we propose a two-step self-assembly process of SELPs in aqueous solution for the first time and report the importance of the ratio of silk to elastin blocks in a SELP’s repeating unit on the assembly of the SELP. Through precise tuning of the ratio of silk to elastin, various structures including nanoparticles, hydrogels and nanofibers could be generated either reversibly or irreversibly. This assembly process might provide opportunities to generate innovative smart materials for biosensors, tissue engineering and drug delivery. Furthermore, the newly developed SELPs in this study may be potentially useful as biomaterials for controlled drug delivery and biomedical engineering.
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影响因子: 6.2
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