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Anglický jazyk
Comparative investigations of the sandfish's epidermis
Autor: Konrad Staudt
The sandfish (Scincidae: Scincus scincus) is a lizard capable of moving through desert sand in a swimming-like fashion. The epidermis of this lizard shows a low friction to sand as an adaption to a subterranean life below the desert's surface. Caused by... Viac o knihe
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O knihe
The sandfish (Scincidae: Scincus scincus) is a lizard capable of moving through desert sand in a swimming-like fashion. The epidermis of this lizard shows a low friction to sand as an adaption to a subterranean life below the desert's surface. Caused by material properties of ß-keratin proteins forming the outer epidermis, this low friction reduces further adhesive wear. Both skin effects, the friction reduction and abrasion resistance outperform even steel. A possible explanation for these properties is an increased glycosylation of the ß-keratins. In this study, the friction and the micro-structure of the epidermis as well as the ß-keratin coding DNA and the glycosylation of the ß- keratin proteins of the sandfish was investigated in comparison to other sauropsidean species. Glycan based friction reduction could be verified by force-distance measurements via atomic force microscopy: proteins were deglycosylated and the glycans covalently bound on a glass surface by silanisation. Both surfaces showed low adhesion force similar to the untreated skin of the sandfish in comparison to Eumeces schenideri and a glass control.
- Vydavateľstvo: Südwestdeutscher Verlag für Hochschulschriften AG Co. KG
- Rok vydania: 2015
- Formát: Paperback
- Rozmer: 220 x 150 mm
- Jazyk: Anglický jazyk
- ISBN: 9783838132266
