The spider's spinning skills are challenged. German scientists say that they have used genetically modified bacteria to successfully produce high-quality “spider silk†that can be used to sew fine fabrics or light and strong ropes in the future. According to a report from the German news agency, Thomas Schebel, a biochemist at the Technical University of Munich, used genetically modified E. coli to stimulate insect cells to produce specific proteins required for the secretion of spider silk, resulting in excellent quality. Artificial silk, its toughness up to 20% of natural spider silk. Prior to this, the best quality artificial silk could only reach 5% to 10% of the natural spider silk tenacity. Shaibel said that for more than 30 years, scientists have been trying to find ways to use other organisms to make spider silk. Gossamer is one of the most peculiar substances in nature. It has a very strong toughness and its toughness is several times that of steel of the same diameter. However, unlike silkworms, spiders cannot be domesticated because they swallow each other, so it is impossible to establish a farm for artificially reared spiders. Shaibeier said: "We are in contact with various industries to test the quality of this new silk and to further develop industrial-scale production technologies." If the spider silk can achieve large-scale artificial production, it can replace plastic materials, Fine suture of the eye or neurosurgery can also be used to manufacture wound dressings such as tapes or artificial ligaments and tendons, and the application prospect is extremely broad. Prior to genetically modified bacteria, scientists had attempted to make spider silk using genetically modified goats, genetically modified tobaccos, transgenic potatoes, etc. However, they were unsuccessful because of low yield or poor silk quality.
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