Hierarchical chirality transfer in the growth of Towel Gourd tendrils.
Hierarchical chirality transfer in the growth of Towel Gourd tendrils.
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DOI：
10.1038/srep03102
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发表时间：
2013-10-31
影响因子：
4.6
通讯作者：
Qin, Qing-Hua
中科院分区：
文献类型：
--
作者：
Wang, Jian-Shan;Wang, Gang;Feng, Xi-Qiao;Kitamura, Takayuki;Kang, Yi-Lan;Yu, Shou-Wen;Qin, Qing-Hua
手性在许多生物材料的物理性质和生物功能中起着重要作用，例如，攀援卷须和扭曲的叶子，表现出手性生长。然而，生物材料手性生长的机制仍不清楚。在本文中，我们研究如何毛巾葫芦卷须实现其手性增长。实验结果表明，卷须的手性具有由低到高的层次结构。在亚细胞水平上纤维素原纤维螺旋角的变化诱导卷须的内在扭转，导致卷须丝螺旋形态的形成。提出了一个手性转移模型来解释卷须的手性生长。本研究有助于理解生物材料中观察到的各种手性现象。这也表明，手性转移可以用于开发具有独特性能的分级手性材料。
Chirality plays a significant role in the physical properties and biological functions of many biological materials, e.g., climbing tendrils and twisted leaves, which exhibit chiral growth. However, the mechanisms underlying the chiral growth of biological materials remain unclear. In this paper, we investigate how the Towel Gourd tendrils achieve their chiral growth. Our experiments reveal that the tendrils have a hierarchy of chirality, which transfers from the lower levels to the higher. The change in the helical angle of cellulose fibrils at the subcellular level induces an intrinsic torsion of tendrils, leading to the formation of the helical morphology of tendril filaments. A chirality transfer model is presented to elucidate the chiral growth of tendrils. This present study may help understand various chiral phenomena observed in biological materials. It also suggests that chirality transfer can be utilized in the development of hierarchically chiral materials having unique properties.
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影响因子：
56.9
作者：
Gerbode, Sharon J.;Puzey, Joshua R.;Mahadevan, L.
通讯作者：
Mahadevan, L.
影响因子：
56.9
作者：
Armon, Shahaf;Efrati, Efi;Sharon, Eran
通讯作者：
Sharon, Eran
影响因子：
64.8
作者：
BERG, HC;ANDERSON, RA
通讯作者：
ANDERSON, RA
影响因子：
5.5
作者：
Maillard, Damien;Prud'homme, Robert E.
通讯作者：
Prud'homme, Robert E.
表面应力对手性聚合物层状晶体弯曲方向和扭曲手性的影响
影响因子：
5.5
作者：
Ye, Hai-Mu;Wang, Jian-Shan;Chen, Guo-Qiang
通讯作者：
Chen, Guo-Qiang