Biomimetic Ultra-Bubble-Repellent Surfaces Based on a Self-Organized Honeycomb Film
Biomimetic Ultra-Bubble-Repellent Surfaces Based on a Self-Organized Honeycomb Film
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DOI：
10.1021/la5035454
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发表时间：
2014-12-02
期刊：
影响因子：
3.9
通讯作者：
Yabu, Hiroshi
中科院分区：
文献类型：
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作者：
Kamei, Jun;Saito, Yuta;Yabu, Hiroshi
在微流体、医疗设备和热交换器等应用中，水下气泡的粘附仍然是导致故障的最大原因。因此出现了对超气泡排斥表面的需求。鱼鳞由于其亲水性和表面微观结构而具有较高的防泡性，受此启发，我们提出了一种通过对自组织微观结构进行亲水性处理来制备超防泡表面的新方法。在水下与气泡接触时，人工亲水微结构表面比平面表面具有更高的接触角和更低的附着力。并对产生这些特性的机理进行了研究。我们的制造超泡排斥、亲水、微结构表面的方法简单且成本效益高，为其在人工设备中的应用开辟了道路，如管道、医疗设备和热交换器的内表面。
The adhesion of bubbles underwater remains the greatest cause of malfunctions in applications such as microfluidics, medical devices and heat exchangers. There is therefore an emerging need for ultra-bubble-repellent surfaces. Inspired by fish scales, which show high bubble repellency due to their hydrophilic nature and surface microstructures, we propose a novel method for preparing ultra-bubble-repellent surfaces by the hydrophilic treatment of self-organized microstructures. When in contact with air bubbles underwater, the artificial hydrophilic microstructured surfaces had a higher contact angle and a lower adhesion force than a flat surface. The mechanism leading to these properties is also investigated. Our method for the fabrication of ultra-bubble-repellent, hydrophilic, microstructured surfaces is simple and cost-effective, opening the way for its application in artificial devices, such as the inner surfaces of tubes, medical devices, and heat exchangers.