Replication of high-aspect-ratio nanopillar array for biomimetic gecko foot-hair prototype by UV nano embossing with anodic aluminum oxide mold
Replication of high-aspect-ratio nanopillar array for biomimetic gecko foot-hair prototype by UV nano embossing with anodic aluminum oxide mold
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DOI：
10.1007/s00542-006-0220-1
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发表时间：
2007-03-01
影响因子：
2.1
通讯作者：
Kwon, Tai Hun
中科院分区：
文献类型：
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作者：
Kim, Dong Sung;Lee, Hyun Sup;Kwon, Tai Hun
在本文中，我们提出了一种简单且经济高效的高纵横比聚合物纳米柱阵列复制方法，作为仿生壁虎的脚毛原型。采用紫外纳米压花工艺复制聚合物纳米柱阵列。高度有序的直纳米孔 AAO（阳极氧化铝）模板被用作可重复使用的母模。通过AAO模具的UV纳米压花工艺，成功制备了密集排列的高纵横比纳米柱阵列。基于从具有改进的 AFM 悬臂的原子力显微镜 (AFM) 获得的力-距离曲线，进行拉脱力测量，以表征聚合物基底上复制的纳米柱阵列的粘附力。力测量结果表明，纳米柱的直径越大，高度越高，附着力越大。
In this paper, we present a simple and cost-effective replication method of high-aspect-ratio polymer nanopillar array as a biomimetic gecko's foot hair prototype. A UV nano embossing process was applied for the replication of polymer nanopillar arrays. Highly ordered straight nanoporous AAO (anodic aluminum oxide) templates were utilized as reusable master molds. Densely arranged high-aspect-ratio nanopillar arrays have been successfully fabricated by means of the UV nano embossing process with the AAO mold. Pull-off force measurements were carried out to characterize the adhesive force of the replicated nanopillar arrays on the polymer substrates based on the force-distance curves obtained from the atomic force microscope (AFM) with a modified AFM cantilever. The force measurement results showed that the larger diameter and the taller height of the nanopillars result in the larger adhesive force.