NDLI: Bio-inspired directional high-aspect-ratio nanopillars: fabrication and actuation

Content Provider	Royal Society of Chemistry (RSC)
Author	Tian, Hongmiao Ding, Yucheng Wang, Lanlan Liu, Hongzhong Yin, Lei Jiang, Weitao Ma, Haoyun Shi, Yongsheng Chen, Bangdao
Copyright Year	2014
Abstract	The Dynamic nature and responsive behaviour are the most attractive features of biological structures, and comprise the goals for next-generation smart materials. The nanostructured arrays provide unique topographic patterns that confer wetting, optical, and many other functions, but their actuation at the sub-micrometer scale is still a challenging goal. In this paper, we provide a simple route to fabricate ordered arrays of slender nanopillars with submicron diameters (400–500 nm) and high aspect ratios (20–40), with controllable slanted angles (60–90°). Experiments reveal that the fabricated slender nanopillars are flexible so that their orientation can be dynamically manipulated in response to an external electric field, while the stiffness can prevent ground or lateral collapse. The high aspect ratio nanopillars with orientation tunability can find applications in the development of smart materials, gecko-inspired reversible adhesion, etc.
Starting Page	42002
Ending Page	42008
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	4
Issue Number	79
Journal	RSC Advances
DOI	10.1039/c4ra05427j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Electric field Stiffness Photolithography
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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