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Related Experiment Videos

Nanofibre production in spiders without electric charge.

Anna-Christin Joel1, Werner Baumgartner2

  • 1RWTH Aachen University, Institute of Biology II, Worringerweg 3, 52074 Aachen, Germany joel@bio2.rwth-aachen.de.

The Journal of Experimental Biology
|April 12, 2017
PubMed
Summary

Cribellate spiders produce nanofibres without high voltage. This study found that electrostatic forces are not involved in their unique capture thread production, challenging previous hypotheses.

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Area of Science:

  • Biomaterials Science
  • Zoology
  • Nanotechnology

Background:

  • Technical nanofibre production typically relies on high voltage electrospinning.
  • Cribellate spiders produce nanofibres for capture threads without high voltage, suggesting an alternative mechanism.
  • Previous hypotheses proposed frictional electrostatic charging during thread formation.

Purpose of the Study:

  • To investigate the role of electrostatic forces in cribellate spider nanofibre production.
  • To validate or refute the hypothesis that electrostatic charges influence capture thread structure.

Main Methods:

  • Testing the influence of charge removal on thread structure.
  • Attempting to regenerate thread structure through artificial charging.
  • Observing thread interactions with charged objects.
Keywords:
CribellarFilistatidaeProcessingProteinSilkUloboridae

Related Experiment Videos

  • Performing mathematical modeling of structural assembly based on electrostatic forces.

    • Main Results:

    • Removing charge did not affect thread structure.
    • Artificial charging could not regenerate the characteristic thread structure.
    • Threads showed no attraction or repulsion to charged objects.
    • Mathematical calculations contradicted electrostatic involvement in observed structure.

    Conclusions:

    • Electrostatic forces are not involved in the production of cribellate spider capture threads.
    • The mechanism of nanofibre formation in these spiders does not rely on electrical charges.