具有可延伸纳米纤维的丝线的稳健基底锚固
Robust substrate anchorages of silk lines with extensible nano-fibres
摘要：
生命系统是由多尺度复合材料构成的：由具有不同特性的成分组成的材料，组装成复杂的微米和纳米结构。这种生物多尺度复合材料往往表现出突出的物理性能，是人造材料无法实现的。因此，一个主要的科学目标是了解组装过程以及结构和功能之间的关系，以便在新一代仿生高性能材料中重现它们。在这里，我们测试了蜘蛛丝纳米纤维（即由所谓的梨状腺产生的涂有胶水的0.5微米厚的纤维）组装成不同的微结构与机械性能的相关性，通过经验和数值探索线锚的机械行为在一个球织，狩猎蜘蛛和两个古老的网络建设者。我们证明，锚的球编织者表现出突出的机械鲁棒性与最小的材料使用的间接连接的丝线通过软域（“桥”）的基板。该原理可用于设计新型高性能人工附着体系统。
英文摘要：
Living systems are built of multiscale-composites: materials formed of components with different properties that are assembled in complex micro- and nano-structures. Such biological multiscale-composites often show outstanding physical properties that are unachieved by artificial materials. A major scientific goal is thus to understand the assembly processes and the relationship between structure and function in order to reproduce them in a new generation of biomimetic high-performance materials. Here, we tested how the assembly of spider silk nano-fibres (i.e. glue coated 0.5 micron thick fibres produced by so-called piriform glands) into different micro-structures correlates with mechanical performance by empirically and numerically exploring the mechanical behaviour of line anchors in an orb weaver, a hunting spider and two ancient web builders. We demonstrate that the anchors of orb weavers exhibit outstanding mechanical robustness with minimal material use by the indirect attachment of the silk line to the substrate through a soft domain ('bridge'). This principle can be used to design new artificial high-performance attachment systems.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
