Evidence for van der Waals adhesion in gecko setaeKellar Autumn
Department of Biology, Lewis and Clark College, Portland, OR 97219, USA
Proc Natl Acad Sci U S A 99:12252-6. 2002
..Both artificial setal tips stuck as predicted and provide a path to manufacturing the first dry, adhesive microstructures...
- Rate-dependent frictional adhesion in natural and synthetic gecko setae
Nick Gravish
Department of Biology, Lewis and Clark College, Portland, OR, USA
J R Soc Interface 7:259-69. 2010
..Observations at the interface indicated that macroscopically smooth sliding of the GSA emerged from randomly occurring stick-slip events in the population of flexible fibrils, confirming our model predictions...
Gecko adhesion: evolutionary nanotechnologyKellar Autumn
Department of Biology, Lewis and Clark College, Portland, OR 97219, USA
Philos Trans A Math Phys Eng Sci 366:1575-90. 2008
..Gecko-like synthetic adhesives may become the glue of the future-and perhaps the screw of the future as well...
- Changes in materials properties explain the effects of humidity on gecko adhesion
Jonathan B Puthoff
Department of Biology, Lewis and Clark College, Portland, OR 97219 7899, USA
J Exp Biol 213:3699-704. 2010
..Changes in setal materials properties, not capillary forces, fully explain humidity-enhanced adhesion, and van der Waals forces remain the only empirically supported mechanism of adhesion in geckos...
- Frictional and elastic energy in gecko adhesive detachment
Nick Gravish
Department of Biology, Lewis and Clark College, Portland, OR 97219, USA
J R Soc Interface 5:339-48. 2008
..8+/-0.12 J m(-2). The release of elastic energy from the setal shaft probably causes spontaneous release, suggesting that curved shafts may enable easy detachment in natural, and synthetic, gecko adhesives...
Ultrahydrophobicity indicates a non-adhesive default state in gecko setaeKellar Autumn
Department of Biology, Lewis and Clark College, 0615 SW Palatine Hill Road, Portland, OR 97219 7899, USA
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 192:1205-12. 2006
..Thus gecko setae may be non-sticky by default because only a very small contact fraction is possible without mechanically deforming the setal array...
- Convergent setal morphology in sand-covering spiders suggests a design principle for particle capture
Rebecca P Duncan
Department of Biology, Lewis and Clark College, 0615 S W Palatine Hill Road, Portland, OR 97219, USA
Proc Biol Sci 274:3049-56. 2007
..This discovery has implications for the design of inventions inspired by this system, from camouflage to the management of granular systems...
- Adhesion and friction force coupling of gecko setal arrays: implications for structured adhesive surfaces
Boxin Zhao
Department of Chemical Engineering and Materials Research Laboratory, University of California at Santa Barbara, Santa Barbara, CA 93106, USA
Langmuir 24:1517-24. 2008
..Our results also have practical implications and criteria for designing reversible and responsive adhesives and articulated robotic mechanisms...
- Analysis of the locomotor activity of a nocturnal desert lizard (Reptilia: Gekkonidae: Teratoscincus scincus) under varying moonlight
Hervé Seligmann
Department of Evolution, Systematics and Ecology, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
Zoology (Jena) 110:104-17. 2007
..6. The results of this and related projects advocate the taking into account of physiological and environmental factors that may affect an animal's foraging behavior...
- Adhesion and friction in gecko toe attachment and detachment
Yu Tian
Department of Chemical Engineering and California NanoSystems Institute (CNSI, University of California, Santa Barbara, CA 93106, USA
Proc Natl Acad Sci U S A 103:19320-5. 2006
..The results have obvious implications for the fabrication of dry adhesives and robotic systems inspired by the gecko's locomotion mechanism...
- Increased capacity for sustained locomotion at low temperature in parthenogenetic geckos of hybrid origin
Michael Kearney
School of Biological Sciences, University of Sydney, New South Wales 2006, Australia
Physiol Biochem Zool 78:316-24. 2005
..This result is opposite of that found in prior studies of parthenogenetic teiid lizards (genus Cnemidophorus) and highlights the idiosyncratic nature of phenotypic evolution in parthenogens of hybrid origin...
