生物
润湿
流体学
平版印刷术
微流控
纳米技术
制作
润滑
曲面(拓扑)
表面能
固体表面
分辨率(逻辑)
材料科学
计算机科学
机械工程
航空航天工程
物理
光电子学
工程类
人工智能
地质学
几何学
自然(考古学)
医学
复合材料
化学物理
古生物学
替代医学
数学
病理
作者
Chuxin Li,Ning Li,Xinshi Zhang,Zhichao Dong,Huawei Chen,Lei Jiang
标识
DOI:10.1002/anie.201607514
摘要
Abstract Liquid uni‐directional transport on solid surface without energy input would advance a variety of applications, such as in bio‐fluidic devices, self‐lubrication, and high‐resolution printing. Inspired by the liquid uni‐directional transportation on the peristome surface of Nepenthes alata , here, we fabricated a peristome‐mimicking surface through high‐resolution stereo‐lithography and demonstrated the detailed uni‐directional transportation mechanism from a micro‐scaled view visualized through X‐ray microscopy. Significantly, an overflow‐controlled liquid uni‐directional transportation mechanism is proposed and demonstrated. Unlike the canonical predictions for completely wetting liquids spreading symmetrically on a high‐energy surface, liquids with varied surface tensions and viscosities can spontaneously propagate in a single preferred direction and pin in all others. The fundamental understanding gained from this robust system enabled us to tailor advanced micro‐computerized tomography scanning and stereo‐lithography fabrication to mimic natural creatures and construct a wide variety of fluidic machines out of traditional materials.
科研通智能强力驱动
Strongly Powered by AbleSci AI