Previous studies have demonstrated the achievement of directional flow under relatively steady conditions. However, for a wide range of practical applications from water harvesting, thermal management, oil–water separation and microfluidics to functional textiles, the unidirectional pumping of liquids should be also preserved under dynamic conditions that involve the impacting droplets and continuous flow. In this study, by drawing multiple inspirations from pitcher plant, desert lizard and springtail, we develop a biomimetic surface that allows for an effective, unidirectional pumping of dynamic liquids with enhanced stability. These findings would provide us important insights for the development of robust unidirectional liquid pumping devices.

先前的研究表明在相对稳定的条件下可以实现定向流。但是，对于从集水，热管理，油水分离和微流体技术到功能性纺织品等广泛的实际应用，还应在涉及冲击液滴和连续流动的动态条件下保持液体的单向泵送。在这项研究中，通过从水罐厂，沙漠蜥蜴和跳马中汲取灵感，我们开发出一种仿生表面，可以有效地单向泵送动态液体，并提高稳定性。这些发现将为我们开发坚固的单向液体泵送设备提供重要的见识。