Spiders

Spider web becomes bulletproof vest

Italian researchers have fed spinning nano materials and made so strong spider rod that it can stop bullets.

© Hemis / Alamy Stock Photo

During an experiment with 21 spiders, researchers from the Italian University of Trento have strengthened spiderweb with nanomaterials. The cobweb became up to four times as strong and ten times as stiff as the strongest natural cobwebs.

This places it in the category of the strongest materials in the world, which also includes other natural materials, such as the teeth of sea snails, and synthetic materials such as kevlar.

The strength of the wire is tested. The most powerful could handle 5.4 gigapascals, compared to 1.5 for a normal spinning thread.

Carbon nanotubes provide the strongest wires

Two types of vibratory spiders and a bullet spider were given fragments of graphene, a single layer of carbon atoms, or of carbon nanotubes via liquid. 2-12 days afterwards the researchers took the extremely strong and smooth spider web.

The nanomaterials were included in the protein structures that make up spiderweb. The spiders that received carbon nanotubes produced the strongest wire.

Chinese researchers have previously strengthened silkworm wire. They think that the method can also be applied to other animals and plants and will lead to a new class of artificially modified materials.

Spiders drink power drink

Spinrag consists of proteins and food from the stomach of the spider. This allows researchers to give the animals building blocks through their food.

Video: New technology: 'Bulletproof' skin (November 2019).

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