Scientists create ‘liquid wire’

Scientists create ‘liquid wire’ material inspired by spider webs

London, May 18 (IANS) Based on the “liquid wire” technique in spider webs, a team of international researchers has created composite fibers which extend like a solid and compress like a liquid.

Pulling on a sticky thread in a garden spider’s orb web and letting it snap back reveals that the thread never sags but always stays taut, even when stretched to many times its original length.

spider-web-20160518

This is because any loose thread is immediately spooled inside the tiny droplets of watery glue that coat and surround the core gossamer fibres of the web’s capture spiral.

The study, which was carried out by researchers from the University of Oxford and the Pierre and Marie Curie University, Paris, was published by the University of Oxford in the journal Proceedings of the National Academy of Sciences.

“Surprisingly, each drop packs enough punch in its watery skins to reel in loose bits of thread. And this winching behaviour is used to excellent effect to keep the threads tight at all times, as we can all observe and test in the webs in our gardens,” said Prof. Fritz Vollrath form the University of Oxford.

The novel properties observed and analysed by the researchers rely on a subtle balance between fibre elasticity and droplet surface tension. The team was also able to recreate this technique in the laboratory using oil droplets on a plastic filament.

This artificial system behaved just like the spider’s natural winch silk, with spools of filament reeling and unreeling inside the oil droplets as the thread extended and contracted, according to the study.

“Our bio-inspired hybrid threads could be manufactured from virtually any components. These new insights could lead to a wide range of applications, such as micro-fabrication of complex structures, reversible micro-motors, or self-tensioned stretchable systems,” said Herve Elettro, the first author of the study and a doctoral researcher from the Pierre and Marie Curie University.

Leave a Reply

Please enter your comment!

The opinions, views, and thoughts expressed by the readers and those providing comments are theirs alone and do not reflect the opinions of www.mangalorean.com or any employee thereof. www.mangalorean.com is not responsible for the accuracy of any of the information supplied by the readers. Responsibility for the content of comments belongs to the commenter alone.  

We request the readers to refrain from posting defamatory, inflammatory comments and not indulge in personal attacks. However, it is obligatory on the part of www.mangalorean.com to provide the IP address and other details of senders of such comments to the concerned authorities upon their request.

Hence we request all our readers to help us to delete comments that do not follow these guidelines by informing us at  info@mangalorean.com. Lets work together to keep the comments clean and worthful, thereby make a difference in the community.

Please enter your name here