Inspired by natural creatures that live in the arid climate, fog harvesting can be an efficient approach to overcome freshwater scarcity. Fog harvesting ability of the creatures is mainly based on wettability differences of their surfaces. In this study, inspired by creatures that have hydrophilic regions surrounded by hydrophobic areas, a novel all-dry patterning method was applied to fabricate hydrophilic/hydrophobic patterned surfaces for fog harvesting. For this purpose, patterned surfaces were produced using plasma-enhanced chemical vapor deposition (PECVD) method with the help of a commercial magnet and iron powders. The idea behind the use of the magnetic field during PECVD deposition is to hold light iron particles on the substrate under the vacuum environment for masking substrate surface. For the first time, the magnetic field was used to fabricate patterned surfaces in vapor-phase polymerization. Ordinary glass slides were successfully transformed into hydrophilic/hydrophobic patterned glasses. The obtained results showed that the combination of hydrophobic and hydrophilic regions improved the fog harvesting performance.

中文翻译：

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用于制造用于雾收集的亲水/疏水表面的全干图案化方法

受生活在干旱气候中的自然生物的启发，集雾可以成为克服淡水短缺的有效方法。生物的捕雾能力主要基于其表面的润湿性差异。在这项研究中，受到亲水区域被疏水区域包围的生物的启发，采用了一种新型的全干图案方法来制造用于收集雾的亲水/疏水图案表面。为此，在商用磁铁和铁粉的帮助下，使用等离子体增强化学气相沉积 (PECVD) 方法生产了图案化表面。在 PECVD 沉积过程中使用磁场背后的想法是在真空环境下将轻铁颗粒保持在基板上以掩盖基板表面。首次，磁场用于在气相聚合中制造图案化表面。普通载玻片成功转化为亲水/疏水图案玻璃。获得的结果表明疏水和亲水区域的组合提高了雾收集性能。