Gecko-like dry adhesive using high aspect ratio polymeric nanohairs has insuperable limitations, although it has huge potential in many applications. Repeated harsh contacts on a target substrate lead to physical collapse of nanohairs and significant degradation of the adhesion property, because the polymeric nanohairs are quite fragile due to poor mechanical robustness. Herein, we demonstrate a highly robust gecko-like dry adhesive with unidirectionally stooped polymeric nanohairs (diameter 100 nm) with a high aspect ratio (∼9) using an ultrathin metal coating. 100 cycles of repeated adhesion tests with 1 N preloading force did not significantly degrade adhesion or cause collapse of nanohairs. We believe that this approach allows gecko-like dry adhesive to be utilized in many related applications and diverse industry interests.
CITATION STYLE
Im, H. S., Kwon, K. Y., Kim, J. U., Kim, K. S., Yi, H., Yoo, P. J., … Kim, T. I. (2015). Highly durable and unidirectionally stooped polymeric nanohairs for gecko-like dry adhesive. Nanotechnology, 26(41). https://doi.org/10.1088/0957-4484/26/41/415301
Mendeley helps you to discover research relevant for your work.