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Characterization of natural and biomimetic spider silk fibers

Title data

Keerl, David ; Scheibel, Thomas:
Characterization of natural and biomimetic spider silk fibers.
In: Bioinspired, Biomimetic and Nanobiomaterials. Vol. 1 (2012) Issue 2 . - pp. 83-94.
ISSN 2045-9858

Official URL: Volltext

Abstract in another language

Spider silk produced by orb-weaving spiders reveals fascinating mechanical properties, in particular, its unique combination of high tensile strength and elasticity, distinguishing it from most other natural or man-made fibers. Here, mechanical characteristics of dragline silk fibers of Araneus diadematus were determined after forcibly silking at varying reeling speeds, humidity, as well as in the presence of water. In comparison, fibers of a recombinant silk protein (eADF3(AQ24NR3)) using solely aqueous solutions was produced. Mechanical properties of these biotech fibers were in the range of other artificial silk fibers made from proteins with comparable molecular weight. Structural investigations by Fourier-transform infrared spectroscopy revealed that the ß-sheet content of the biotech fibers is lower and the ß-sheets are less oriented in comparison to native dragline silks. The results suggest that pulling fibers from aqueous solutions in combination with postspin techniques will help to produce artificial silk fibers with mechanical properties for distinct technical or medical applications.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: In: Themed Issue – Bioinspired Materials
Keywords: bioinspired; polymer; protein
Institutions of the University: Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Biomaterials
Faculties > Faculty of Engineering Science > Chair Biomaterials > Chair Biomaterials - Univ.-Prof. Dr. Thomas Scheibel
Profile Fields > Advanced Fields > Advanced Materials
Profile Fields > Advanced Fields > Molecular Biosciences
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Emerging Fields > Food and Health Sciences
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Emerging Fields
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 24 Jun 2015 08:34
Last Modified: 21 Apr 2022 07:28