New Textile Material: "Spider Silk"
araneus ventricosus
Silkworms can also spit spider silk? Yes, the Japanese Institute of Agricultural Biological Resources announced on the 28 day that the researchers inserted spiders' spider silk genes into silkworms and produced 1.5 times the "spider silk" with toughness equal to that of natural silk.
This "spider silk" has the strength of silk and the luster of silk, because it is not only thin but also has high strength and heat resistance. It is expected to be used as surgical suture or used to make protective clothing.
Spider silk is a kind of fiber with both strength and extensibility, but spiders are similar to each other, so there is no way to feed spiders in large quantities to produce spider silk.
Previously, researchers have been experimenting with artificial methods to produce spider silk with high strength and good ductility.
Many experiments have been done in the silkworm to insert the genes of ghost spiders that can vomit strong and tough silk.
However, due to the lack of silking or the lack of tolerance in making cocoon silk, it has not been practicable.
The research team implanted the spider silk gene into silkworms. The raw silk produced by the spider was increased by about 20% compared with the raw silk, and the elongation was increased by about 30%. The toughness of the raw silk was 20 times that of the steel and 5 times of the carbon fiber.
The team then used the spider silk to make vest and scarf like silk.
Female staff member
The scarf made of spider silk with high strength and good ductility is compared with silk scarves made from natural silk.
The material on the vest is "spider silk".
The research team points out that "spider silk" is not only thin but also fine.
Fortitude and toughness
The heat resistance is also very high and easy to process, so it is easy to popularize. It is expected to be used as surgical suture line or for making protective clothing.
In the future, the research group is going to further develop "spider silk" with stronger strength and better function, such as silkworm eggs that can spit fluorescent silks and other special silkworm eggs.
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