Structural organization of spider silk

@article{Vollrath1996StructuralOO,
  title={Structural organization of spider silk},
  author={Fritz Vollrath and Thor Las Holtet and Hans Christian Th{\o}gersen and Sebastian Frische},
  journal={Proceedings of the Royal Society of London. Series B: Biological Sciences},
  year={1996},
  volume={263},
  pages={147 - 151}
}
  • F. Vollrath, T. Holtet, S. Frische
  • Published 22 February 1996
  • Materials Science
  • Proceedings of the Royal Society of London. Series B: Biological Sciences
Spider silks are protein polymers with outstanding physical properties. A benchmark for spider silks is the dragline thread of the golden silk spider Nephila. Our study using urea super-contraction suggests a new model for the microstructure of this silk. According to this model, which challenges the general view, this silk consists of a structured fibril tube surrounding a thin core. This hypothetical structural organization could explain the supreme tensile strength of this interesting… 

Figures from this paper

Strength and structure of spiders' silks.

  • F. Vollrath
  • Materials Science
    Journal of biotechnology
  • 2000

Biomimetic principles of spider silk for high-performance fibres

Abstract: The desirable properties of silk and the relationships between structure and composition are explored. Fibres spun from feedstocks with identical rheology have differing mechanical

Brown Recluse Spider's Nanometer Scale Ribbons of Stiff Extensible Silk

TLDR
Stress-strain characterization of individual fibers via atomic force microscopy reveals that these ribbons, only a few molecular layers of protein thin, rival the mechanical performance of the best silks.

5 – The structure of silk

A key feature of silk fibres is the carefully controlled assembly and directed growth that produce hierarchical structures at all length scales. The final result is a material of outstanding

Spider silk as archetypal protein elastomer.

TLDR
It is concluded that silk after its transformation from the hydrated feedstock to the dehydrated fibre state can in fact be analysed in great detail and interpreted as representative of a wide range of elastomeric proteins covering, inter alia, bone, keratins, elastin and collagen.

Composition and Hierarchical Organisation of a Spider Silk

TLDR
The morphological defined structural elements in dragline silk of Nephila clavipes are linked to their biochemical composition and physicochemical properties to understand the composite nature of silk and its supra-molecular organisation.

Strength of Recluse Spider's Silk Originates from Nanofibrils.

Spider silk exhibits a combination of outstanding tensile strength and extensibility unique among all synthetic and biogenic polymer fibers. It has thus generated great interest to understand

Natural Spider Silk Nanofibrils Produced by Assembling Molecules or Disassembling Fibers

TLDR
The complete mechanical decomposition of natural silk fibers from the golden silk orb-weaver Trichonephila clavipes is reported, breaking down into ≈10 nm-diameter nanofibrils, the material’s apparent fundamental building blocks.

Mechanics of silk produced by loaded spiders

  • F. VollrathT. Köhler
  • Engineering
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1996
We examined the effect of a spider’s weight on silk parameters and material properties by studying the stress strain characteristics of radial fibres from Araneus diadematus made heavier by adding
...

References

SHOWING 1-10 OF 30 REFERENCES

Molecular mechanism of spider silk elasticity.

Modulation of the mechanical properties of spider silk by coating with water

THE orb web of the garden cross spider Araneus diadetnatus is made up of two types of thread with distinctive mechanical properties: stiff radial threads which sag when contracted by only 10%, and

Silk polymers : materials science and biotechnology

Silk: Biology, Structure, Properties, and Genetics General Properties of Some Spider Silks Silk Glands of Araneid Spiders: Selected Morphological and Physiological Aspects Molecular Map for the

Composite Microstructure of Spider ( Nephila Clavipes ) Dragline

Dragline fibers collected at a controlled silking rate from Nephila clavipes spiders were studied by analytical transmission electron microscopy (TEM). The physical microstructure consists of

The silk fibroins.

Hierarchical structure in polymeric materials.

TLDR
It is instructive to consider a hierarchical organization of structure in polymers at four successive levels--the molecular, nano-, micro-, and macrolevels--and to examine how interactions at and between these various levels of structure have important and often quite specific influences.

Compounds in the droplets of the orb spider's viscid spiral

TLDR
The chemical composition of this aqueous solution is investigated and the droplets are found to be a concentrated solution of hygroscopic substances related to neurotransmitters.

Physical and chemical microstructure of spider dragline: A study by analytical transmission electron microscopy

We report the first direct observations of the physical and chemical microstructure of spider dragline, revealed by analytical transmission electron microscopy. Individual crystallites were imaged