| The Sandfish＇s Skin： Morphology, Chemistry and Reconstruction |
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| 引用本文： | Werner Baumgartner Friederike Saxe Agnes Weth David Hajas Darwin Sigumonrong Jens Emmerlich Martin Singheiser Wolfgang Boehme Jochen M. Schneider. The Sandfish＇s Skin： Morphology, Chemistry and Reconstruction[J]. 仿生工程学报（英文版）, 2007, 4(1): 1-9. DOI: 10.1016/S1672-6529(07)60006-7 |
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| 作者姓名： | Werner Baumgartner Friederike Saxe Agnes Weth David Hajas Darwin Sigumonrong Jens Emmerlich Martin Singheiser Wolfgang Boehme Jochen M. Schneider |
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| 作者单位： | [1]Department of Cellular Neurobionics, RWTH-Aachen, Kopernikusstr. 16, 52056 Aachen, Germany [2]Material Chemistry, RWTH-Aachen, Kopernikusstr. 16, 52056 Aachen, Germany [3]Institute of Zoology, RWTH-Aachen, Kopernikusstr. 16, 52056Aachen, Germany [4]Zoologisches Forschungsmuseum Alexander Koenig （ZFMK）, Adenauerallee 160, 53113 Bonn, Germany |
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| 基金项目： | Acknowledgement The authors thank Dr. Ralf Meisterfeld （Aachen） for help with photographic documentation and Henrik Nacken for help with animal care. The work was financially supported by the Deutsche Forschungsgemeinschaft SFB567. |
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| 摘 要： | ![]()
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| 关 键 词： | 沙鱼皮 石龙子 摩檫学 角质素 磨损 形态 重构 蜥蜴皮肤 |
The Sandfish's Skin: Morphology, Chemistry and Reconstruction |
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| Werner Baumgartner, Friederike Saxe, Agnes Weth, David Hajas, Darwin Sigumonrong, Jens Emmerlich, Martin Singheiser, Wolfgang B,#xf;hme,Jochen M. Schneider. The Sandfish's Skin: Morphology, Chemistry and Reconstruction[J]. Journal of Bionic Engineering, 2007, 4(1): 1-9. DOI: 10.1016/S1672-6529(07)60006-7 |
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| Authors: | Werner Baumgartner, Friederike Saxe, Agnes Weth, David Hajas, Darwin Sigumonrong, Jens Emmerlich, Martin Singheiser, Wolfgang B hme,Jochen M. Schneider |
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| Affiliation: | aDepartment of Cellular Neurobionics, RWTH-Aachen, Kopernikusstr. 16, 52056 Aachen, Germany;bMaterial Chemistry, RWTH-Aachen, Kopernikusstr. 16, 52056 Aachen, Germany;cInstitute of Zoology, RWTH-Aachen, Kopernikusstr. 16, 52056 Aachen, Germany;dZoologisches Forschungsmuseum Alexander Koenig (ZFMK), Adenauerallee 160, 53113 Bonn, Germany |
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| Abstract: | ![]()
The sandfish is a lizard having the remarkable ability to move in desert sand in a swimming-like fashion. The most outstanding adaptations to this mode of life are the low friction behaviour and the extensive abrasion resistance of the sandfish skin against sand, outperforming even steel. We investigated the topography, the composition and the mechanical properties of sandfish scales. These consist of glycosylated keratins with high amount of sulphur but no hard inorganic material, such as silicates or lime. Remarkably, atomic force microscopy shows an almost complete absence of attractive forces between the scale surface and a silicon tip, suggesting that this is responsible for the unusual tribological properties. The unusual glycosylation of the keratins was found to be absolutely necessary for the described phenomenon. The scales were dissolved and reconstituted on a polymer surface resulting in properties similar to the original scale. Thus, we provide a pathway towards exploitation of the reconstituted scale material for future engineering applications. |
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| Keywords: | Sandfish Skink Scincus scincus tribology nanoindentation keratin abrasion |
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