Liquids with low surface tension, such as petroleum, serve as the source of power for development of modern industry. Spontaneous and directional transportation of oily liquids in aqueous environment has drawn wide attentions owing to its scientific significance and practical prospect in marine petroleum exploitation and oil spill cleanup. Persistent effort has been made to the directional transportation of oil droplets under specific assistance. However, the spontaneous oriented movement of oil, especially the air/water two‐phase oil delivery is still identified as a big challenge. Here, a bioinspired superoleophobic pump has been fabricated through the assembly of a superoleophobic mesh and an oil column. Depending on the directional releases of surface energy, oil droplets can be continuously collected and pumped to centimeters high without additional driving forces. The antigravity oil delivery system can realize continuous oil flow under water, even the air/water two‐phase oil transportation. This work demonstrates a new mode of liquid transportation without external energy and should open a new way to design novel fluid delivery systems to realize diverse liquid transport.

中文翻译：

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生物启发的连续和自发反重力油的收集和运输

具有低表面张力的液体，例如石油，是现代工业发展的动力来源。水性环境中油性液体的自发定向输送由于其在海洋石油开采和溢油清理中的科学意义和实际应用前景而引起了广泛的关注。在特定的协助下，一直致力于油滴的定向输送。然而，油的自发定向运动，特别是空气/水两相油输送仍然被认为是一个巨大的挑战。在这里，通过将超疏油网和油柱组装在一起，制造了具有生物启发性的超疏油泵。根据表面能的定向释放，可以连续收集油滴并将其泵送到厘米高的位置，而无需额外的驱动力。反重力输油系统可以实现水下连续油流，甚至是空/水两相输油。这项工作展示了一种无需外部能量的新型液体运输方式，应该为设计新颖的液体输送系统以实现多种液体运输开辟一条新途径。