Repeat sequence proteins as matrices for nanocomposites
Repeat sequence proteins as matrices for nanocomposites
复制标题
DOI：
10.1016/j.msec.2008.10.014
复制
发表时间：
2009-05-05
期刊：
影响因子：
--
通讯作者：
Naik, Rajesh R.
中科院分区：
文献类型：
--
作者：
Drummy, Lawrence F.;Koerner, Hilmar;Naik, Rajesh R.
重组蛋白-无机纳米复合材料由剥离的Na+蒙脱石（MMT）在基于丝样和弹性蛋白样氨基酸基序的重组蛋白基质（丝弹性蛋白样蛋白（SELP））中组成，通过溶液共混工艺形成。带电残基沿蛋白质骨架沿着示出占主导地位的远程相互作用，而SELP重复序列导致当地的蛋白质/MMT的兼容性。对于含有2-10重量%的聚乙烯醇的流延膜，室温模量增加高达50%，高温热膨胀系数相当地降低。现代货币理论。(C)2008 Elsevier B. V.保留所有权利。
Recombinant protein-inorganic nanocomposites comprised of exfoliated Na+ montmorillonite (MMT) in a recombinant protein matrix based on silk-like and elastin-like amino acid motifs (silk elastin-like protein (SELP)) were formed via a solution blending process. Charged residues along the protein backbone are shown to dominate long-range interactions, whereas the SELP repeat sequence leads to local protein/MMT compatibility. Up to a 50% increase in room temperature modulus and a comparable decrease in high temperature coefficient of thermal expansion occur for cast films containing 2-10 wt.% MMT. (C) 2008 Elsevier B.V. All rights reserved.