Carbon nanotube-based synthetic gecko tapes
Open accessAbstract
We have developed a synthetic gecko tape by transferring micropatterned carbon nanotube arrays onto flexible polymer tape based on the hierarchical structure found on the foot of a gecko lizard. The gecko tape can support a shear stress (36 N/cm 2 ) nearly four times higher than the gecko foot and sticks to a variety of surfaces, including Teflon. Both the micrometer-size setae (replicated by nanotube bundles) and nanometer-size spatulas (individual nanotubes) are necessary to achieve macroscopic shear adhesion and to translate the weak van der Waals interactions into high shear forces. We have demonstrated for the first time a macroscopic flexible patch that can be used repeatedly with peeling and adhesive properties better than the natural gecko foot. The carbon nanotube-based tape offers an excellent synthetic option as a dry conductive reversible adhesive in microelectronics, robotics, and space applications.
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Arraying adhesive material into elastically coupled sections tends to halt, divert and reinitiate the crack.
“Another method is to array the adhesive material into elastically coupled sections [22,23], which tends to halt, divert and reinitiate the crack.”
From Human climbing with efficiently scaled gecko-inspired dry adhesives (2015) · cites this paper as [22]
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- Authors
- Ge, L., Sethi, S., Ci, L., Ajayan, P. M., & Dhinojwala, A.
- Affiliations
- University of Akron (US)
- Rensselaer Polytechnic Institute (US)
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2007-06-26
- Volume
- 104
- Issue
- 26
- Pages
- 10792-10795
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC1904109
- OpenAlex
- W2148931195
- Cited by
- 441
- References
- 23
- Citations by year
- 2026: 8 · 2025: 10 · 2024: 7 · 2023: 7 · 2022: 8 · 2021: 27 · 2020: 12 · 2019: 21 · 2018: 20 · 2017: 20 · 2016: 22 · 2015: 25 · 2014: 30 · 2013: 37 · 2012: 43
- FWCI
- 62.80
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Mechanics of Materials › Adhesion, Friction, and Surface Interactions
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Materials Chemistry › Carbon Nanotubes in Composites
- Keywords
- carbon nanotubes, dry adhesion, van der Waals interactions, setae, spatulae, shear adhesion, reversible adhesion, conductive adhesives
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