Iron-clad fibers: a metal-based biological strategy for hard flexible coatings.
Iron-clad fibers: a metal-based biological strategy for hard flexible coatings.
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DOI：
10.1126/science.1181044
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发表时间：
2010-04-09
期刊：
影响因子：
--
通讯作者：
Fratzl P
中科院分区：
文献类型：
--
作者：
Harrington MJ;Masic A;Holten-Andersen N;Waite JH;Fratzl P
海洋贻贝的可延伸的深海线在波浪冲刷的栖息地中被外角质层保护免受磨损，外角质层主要是蛋白质，比线芯硬大约五倍。几个物种的螺纹表现出颗粒状的铜，含有富含儿茶酚氨基酸3，4-二羟基苯丙氨酸（多巴）以及无机离子（特别是Fe 3+）的蛋白质。粒状氧化铜具有高硬度和高延展性的显著组合。我们探讨足丝角质层化学原位共振拉曼光谱的装置，并证明角质层是一个聚合物支架稳定的儿茶酚铁螯合物具有不寻常的集群分布。与深海角质层的化学和力学相一致，我们提出了一个模型，其中致密的交联颗粒提供硬度，而较少的交联基质提供延展性。
The extensible byssal threads of marine mussels are shielded from abrasion in wave-swept habitats by an outer cuticle that is largely proteinaceous and approximately fivefold harder than the thread core. Threads from several species exhibit granular cuticles containing a protein that is rich in the catecholic amino acid 3,4-dihydroxyphenylalanine (dopa) as well as inorganic ions, notably Fe3+. Granular cuticles exhibit a remarkable combination of high hardness and high extensibility. We explored byssus cuticle chemistry by means of in situ resonance Raman spectroscopy and demonstrated that the cuticle is a polymeric scaffold stabilized by catecholato-iron chelate complexes having an unusual clustered distribution. Consistent with byssal cuticle chemistry and mechanics, we present a model in which dense cross-linking in the granules provides hardness, whereas the less cross-linked matrix provides extensibility.
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影响因子：
4.6
作者：
Chan, CM;Wu, JS;Cheung, YK
通讯作者：
Cheung, YK
影响因子：
3.4
作者：
Schmitt, L;Ludwig, M;Tampé, R
通讯作者：
Tampé, R
影响因子：
15
作者：
Ohrstrom, L;MichaudSoret, I
通讯作者：
MichaudSoret, I
影响因子：
4.8
作者：
Sun, CJ;Waite, JH
通讯作者：
Waite, JH
DOI：
10.1073/pnas.191189098
发表时间：
2001-09-11
影响因子：
11.1
作者：
Li, HB;Oberhauser, AF;Fernandez, JM
通讯作者：
Fernandez, JM