Shape Control of Lotus Leaf Induced by Surface Submillimeter Texture,Advanced Materials Interfaces

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Shape Control of Lotus Leaf Induced by Surface Submillimeter Texture
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2020-02-25 , DOI: 10.1002/admi.202000040
Peiliu Li ₁ , Lei Wang ₂ , Shousheng Tang ₂ , Yan Xing ₃ , Hongbin Zhao ₄ , Jing Liu _{1,

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Affiliation

Automatic slant of lotus leaf achieving self‐motive unidirectional fluid transport is significant for self‐cleaning, decreasing load, enhancing respiration, and receiving more sunlight, which is the consequence of natural evolution. In this study, the mechanism of the automatic gradual slant process in its development is exposed and this function is successfully replicated. The special distribution of submillimeter papillae (SP) on the leaf surface generates anisotropic deflection and induces the leaf edge to warp asymmetrically. These effects shift the center of gravity, slant the leaf, and bend the petiole gradually, thereby guiding the liquid away from the surface with synergy effect. The behaviors of lotus leaf are realized with stimulus of temperature on artificial lotus leaf. This work uncovers a new theory for shape control of soft materials and opens up new horizons for artificial intelligence, flexible robot, flexible sensor, and membrane manufacture industry.

中文翻译：

亚毫米表面纹理诱导的荷叶形状控制

荷叶自动倾斜实现自我动机的单向流体传输对于自我清洁，减轻负荷，增强呼吸作用和接受更多阳光非常重要，这是自然进化的结果。在这项研究中，揭示了自动渐进倾斜过程在其发展过程中的机理，并成功复制了该功能。叶片表面亚毫米乳头（SP）的特殊分布会产生各向异性偏转，并导致叶片边缘不对称地翘曲。这些作用会改变重心，倾斜叶子并逐渐弯曲叶柄，从而通过协同作用将液体引导离开表面。荷叶的行为是通过温度对人造荷叶的刺激来实现的。

更新日期：2020-02-25

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