Yaolei Xiang

Peking University

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Pengyu Lv

State Key Laboratory of Turbulence and Complex Systems

Hongyuan Li

Development Research Center

Huiling Duan

Peking University

Yucheng Zou

Harbin Engineering University

Shenglin Huang

University of Pennsylvania

Chenxi You

State Key Laboratory of Turbulence and Complex Systems

Zeqi Shi

Peking University

Tian‐Yun Huang

Peking University

Ao Dong

Center for Life Sciences

Ming Chen

Jiangyin People's Hospital

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Peking University

State Key Laboratory of Turbulence and Complex Systems

Laoshan Laboratory

State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering

Qingdao National Laboratory for Marine Science and Technology

Fudan University

Harbin Engineering University

Development Research Center

Anhui Institute of Optics and Fine Mechanics

Hefei Institutes of Physical Science

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Superrepellency of underwater hierarchical structures on Salvinia leaf

Proceedings of the National Academy of Sciences (2020)

Yaolei Xiang Shenglin Huang Tian‐Yun Huang Ao Dong Di Cao

Significance Instability and collapse of the underwater slippery air mattress hinder its applications, after which the air mattress cannot be recovered even on superhydrophobic surfaces like lotus leaves. Beyond superhydrophobicity, we present the underwater superrepellent capacity of Salvinia leaves, which can efficiently and robustly recover the invalid slippery air mattress by trapping the replenished air to replace the water in the microstructures. The interconnected wedge-shaped grooves on the base are key to the recovery, which spontaneously transport the replenished air to the entire surface governed by a gas wicking effect. Using 3D printing technology, biomimetic artificial Salvinia surfaces are fabricated, which successfully achieves the recovery of the air mattress. This finding will greatly extend the underwater applications of water-repellant surfaces.

Lotus effect

Wedge (geometry)

Biomimetics

10.1073/pnas.1900015117

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Citations (105)

Seakeeping investigations of a cross-domain vehicle with the capability of high-speed cruising in waves

Ocean Engineering (2024)

Zeqi Shi Yucheng Zou Chenxi You Yaolei Xiang Ming Chen

Seakeeping

10.1016/j.oceaneng.2024.118282

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