The American Chemical Society said on the 23rd that scientists have discovered a simple and inexpensive method that can transform ordinary silk into silk fibers with the ability to sterilize and kill spores. Experiments have shown that the newly obtained silk fiber can kill pathogenic bacteria in a few minutes, even microbial spores with protective membranes including anthrax.
Research leader Dr. Rajsi Neck said that in unfavorable environments, Bacillus species bacteria (including anthrax) will become dormant spores, wrap themselves in a strong protective film, and experience heat and radiation , Antibiotics and other severe external conditions survived, and some spores were reborn after 250 million years.
In real life, certain chemicals (mostly oxidants including chlorides) have the ability to kill bacterial spores. People usually attach these chemicals to fibers such as cotton, polyester, nylon and Kevlar, effectively killing a variety of bacteria. However, their effect on spores is not significant.
In the new study, scientists envisioned using the same chemical on silk to see if it had a better ability to kill spores. To this end, they have developed silk fibers containing chlorides, which include soaking the silk in a solution similar to household bleach before drying. The experimental results show that the silk treated in only 1 hour can kill all the E. coli coated on it within 10 minutes, and it also has the same effect on anthrax-like spores.
Scientists say that in view of the potential sterilization and spore killing ability of chloride silk fiber, it is expected to have a wide range of uses, including water purification and toxic relief, and people can use it to make Temporary curtains and other outerwear protection when they are attacked by anthrax Family and architecture.
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