Spider silk is stronger than steel. It also assembles itself.


Fortunately for spiders, millennia of evolution have made spiderines versatile. Dr .. Rising explained that the proteins are designed like barbells: long, messy strings tied with bolt-like blobs at each end. In silk glands, these barbells are thought to be naturally attached at one end, forming a V-shaped duo that rotates in the dope.

To create the more stable architecture required of solid silk, spidroins need to be attached in chains using the other ends of the barbells. It appears to have occurred under the influence of some chemical signals, said Jessica Gerbe, a spider silk researcher at the University of Massachusetts, Lowell, who was not involved in the study. As the spiderwine slurry is expelled through an increasingly narrow tube labyrinth, the spider cell pumps the acid into the mixture, allowing the free ends of the barbells to stick together. The journey of these tapering tubes also pulls and squeezes the silk into its final form.

Dr .. Malay and his colleagues discovered that this sculpture and self-assembly could not take place if the liquid spidroins advancing from the spider’s anatomy were not dehydrated.

Further experiments show that salt quickly removes protein from surrounding liquids, such as oil and vinegar in salad dressings. Cheryl Hayashi, a spider silk researcher at the American Museum of Natural and Natural History, said that not being included in the study, it allows spidroins to communicate more easily. Freshly thickened, the stew of the spiderines then shapes itself into an increasingly striking structure.

The Ka pip pipeline out of silk looks a bit cumbersome. From the engineer’s point of view, however, it is spectacularly magnificent, said KG Numata, a research scientist who led the research. Scientists can create a strong polymer in the lab, using brute force, to compress the material so that it cannot come off. But given the right ingredients, under the right conditions, a recipe that is spider silk essentially makes cooking itself.

Researchers still do not know enough to completely recreate this process. There are also many ways to spin a spider silk, which varies between species, and even within the same spider, Dr. G. However, silk may be known for their role in web building, using it to seduce a mate, keep eggs safe, or mischievous. It can also help spiders ride in the wind.

The study focuses on proteins found in dragline silk, which spiders act as a type of bungee cord hanging from their webs or roofs. Dr. “But nature has yet to discover much that we do not know,” said Hayashi.