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A batch fabricated biomimetic dry adhesive
Open accessAbstract
The fine hair adhesive system found in nature is capable of reversibly adhering to just about any surface. This dry adhesive, best demonstrated in the pad of the gecko, makes use of a multilevel conformal structure to greatly increase inelastic surface contact, enhancing short range interactions and producing significant amounts of attractive forces. Recent work has attempted to reproduce and test the terminal submicrometre 'hairs' of the system. Here we report the first batch fabricated multi-scale conformal system to mimic nature's dry adhesive. The approach makes use of massively parallel MEMS processing technology to produce 20–150 µm platforms, supported by single slender pillars, and coated with ∼2 µm long, ∼200 nm diameter, organic looking polymer nanorods, or 'organorods'. To characterize the structures a new mesoscale nanoindenter adhesion test technique has been developed. Experiments indicate significantly improved adhesion with the multiscale system. Additional processing caused a hydrophilic to hydrophobic transformation of the surface and testing indicated further improvement in adhesion.
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Cited by
A reversible wet/dry adhesive inspired by mussels and geckos
Lee, H., Lee, B. P., & Messersmith, P. B. (2007) · Nature · doi:10.1038/nature05968 · Cited by 2,043
Smooth Vertical Surface Climbing With Directional Adhesion
Kim, S., Spenko, M., Trujillo, S., Heyneman, B., Santos, D., & Cutkosky, M. R. (2008) · IEEE Transactions on Robotics · doi:10.1109/tro.2007.909786 · Cited by 661
Contact Shape Controls Adhesion of Bioinspired Fibrillar Surfaces
del Campo, A., Greiner, C., & Arzt, E. (2007) · Langmuir · doi:10.1021/la7010502 · Cited by 465
Carbon nanotube-based synthetic gecko tapes
Ge, L., Sethi, S., Ci, L., Ajayan, P. M., & Dhinojwala, A. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0703505104 · Cited by 441
Adhesion of Biologically Inspired Vertical and Angled Polymer Microfiber Arrays
Aksak, B., Murphy, M. P., & Sitti, M. (2007) · Langmuir · doi:10.1021/la062697t · Cited by 314
Metadata
- Authors
- Northen, M. T., & Turner, K. L.
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 2005-05-17
- Volume
- 16
- Issue
- 8
- Pages
- 1159-1166
- ISSN
- 0957-4484 (ISSN-L)
- 1361-6528
- OpenAlex
- W2153467833
- Cited by
- 249
- References
- 0
- FWCI
- 44.56
- Type
- journal article
- Language
- en
- Open access
- bronze
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