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首页> 外文期刊>ACS applied materials & interfaces >Laser Direct Structuring of Bioinspired Spine with Backward Microbarbs and Hierarchical Microchannels for Ultrafast Water Transport and Efficient Fog Harvesting
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Laser Direct Structuring of Bioinspired Spine with Backward Microbarbs and Hierarchical Microchannels for Ultrafast Water Transport and Efficient Fog Harvesting

机译：激光直接构建Bioinspired Spine与后向微渣和分层微通道，用于超快水运输和高效雾收割

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摘要

Achieving effective dropwise capture and ultrafast water transport is essential for fog harvesting. In nature, cactus uses the conical spine with microbarbs to effectively capture fog, while Sarracenia utilizes the trichome with hierarchical microchannels to quickly transport water. Herein, we combined their advantages to present a novel configuration, a spine with barbs and hierarchical channels (SBHC), for simultaneous ultrafast water transport and high-efficient fog harvesting. This bioinspired SBHC exhibited the fastest water transport ability and the highest fog harvesting efficiency in comparison with the spine with hierarchical channels (SHCs), the spine with barbs and grooves (SBG), and the spine with barbs (SB). Based on the fundamental SBHC unit, we further designed and fabricated a two-dimensional (2D) spider-web-like fog collector and a three-dimensional (3D) cactus-like fog collector using direct laser structuring and origami techniques. The 2D spider-web and 3D cactus-like fog collectors showed high-efficient fog collection capacity. We envision that this fundamental understanding and rational design strategy can be applied in fog harvesting, heat transfer, liquid manipulation, and microfluidics.
机译：实现有效的滴捕获和超快水运对于雾收获至关重要。本质上，仙人掌使用微巴甘蓝的锥形脊柱，以有效地捕获雾，而Sarracenia利用具有等级微通道的滴毛体以迅速运输水。这里，我们将其优点结合起来提出了一种新颖的配置，具有倒钩和分层通道（SBHC）的脊柱，用于同时超快水运输和高效的雾收获。这种BioinSpired SBHC与具有等级通道（SHCS）的脊柱相比，具有最快的水运输能力和最高的雾收获效率，倒钩和凹槽（SBG）以及带倒钩（SB）的脊柱。基于基本的SBHC单元，我们进一步设计和制造了一种使用直接激光结构和折纸技术的二维（2D）蜘蛛网状雾收集器和三维（3D）仙人掌状雾收集器。 2D蜘蛛网和3D仙人掌的雾收集器显示出高效的雾收集能力。我们设想这种基本的理解和合理的设计策略可以应用于雾收获，传热，液体操作和微流体。

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