In order to apply UV nanoimprinting method to fabricating fine hairs, which imitates those on sole of a gecko's foot, the shape of hair was designed as straight, making it easy to be released from the mold. The length of hairs which branch off at the tip was designed to be short, preventing them from aggregating. Under these restrictions, considering the asperities due to roughness of objective surface, a three-stage hair structure comprising a root hair, intermediate hairs, and tip hairs was proposed instead of the two-stage hair structure comprising a seta and spatulae of the gecko, so that the tip hairs can easily come into contact with the surface of asperities. A high-precision 3D stereo-lithography was used to fabricate a master consisting of a base and the hairs. A polydimethylsiloxane (PDMS) mold was obtained by transferring this master to PDMS. By performing UV nanoimprinting using this mold, we succeeded in fabricating fine hairs made of photo-curable resin. This method has the advantage that the three-stage hairs can be fabricated by single nanoimprint due to 3D lithography capable of realizing the master of complicated structure with high aspect ratio, i.e., it is not necessary to nanoimprint twice on the root and the tip separately. It was confirmed that the fine hair fabricated by UV nanoimprinting showed the adhesive force.

为了将UV纳米压印方法应用于模仿壁虎脚底上的细毛的制造，将毛发的形状设计为笔直，使其易于从模具中脱模。尖端处分叉的头发长度应设计得较短，以防止其聚集。在这些限制下，考虑到由于物镜表面粗糙而引起的粗糙，提出了由根毛，中间毛和尖毛组成的三阶段毛发结构，而不是由壁虎的刚毛和小铲组成的两阶段毛发结构，从而使尖发很容易与粗糙表面接触。高精度3D立体光刻技术用于制造由基础和毛发组成的母版。通过将此母版转移到PDMS上，获得了聚二甲基硅氧烷（PDMS）模具。通过使用该模具进行紫外线纳米压印，我们成功地制造了由光固化树脂制成的细毛。该方法的优点在于，由于能够实现具有高纵横比的复杂结构的母版的3D光刻技术，可以通过单个纳米压印来制造三级毛发，即，不必分别在根部和尖端上进行两次纳米压印。 。证实了通过UV纳米压印制造的细发显示出粘附力。该方法的优点在于，由于能够实现具有高纵横比的复杂结构的母版的3D光刻技术，可以通过单个纳米压印来制造三级毛发，即，不必分别在根部和尖端上进行两次纳米压印。 。证实了通过UV纳米压印制造的细发显示出粘附力。该方法的优点在于，由于能够实现具有高纵横比的复杂结构的母版的3D光刻技术，可以通过单个纳米压印来制造三级毛发，即，不必分别在根部和尖端上进行两次纳米压印。 。证实了通过UV纳米压印制造的细发显示出粘附力。