Nanoscale graphene is expected to become a new antibacterial drug

The reporter recently learned from the Southwest Hospital of the Third Military Medical University that Luo Yang, the director of the Institute's Comprehensive Experimental Research Center, and his team have studied for eight years and found for the first time that nano-scale graphene can kill bacteria and achieve antibacterial activity. This means that graphene is expected to become a new antibacterial drug, becoming an important alternative to antibiotics and addressing the problem of antibiotic abuse.

Through extensive research, Luo Yang team found that nano-scale graphene has a killing effect on bacteria. "This is because the nanoscale graphene itself is connected to a series of carbon atoms, like a very thin layer of dense cloth." Luo Yang explained that there are three ways to deal with bacteria: The first is to directly "cut", Since graphene is nanometer-sized and the bacteria are micron-sized, the former is 1,000 times smaller than the latter, graphene is like a very sharp knife, directly killing bacteria; the second is to starve the bacteria, nanometer-scale Graphene can be wrapped in bacteria like a cloth so that the bacteria can't absorb nutrients. The third type is slowly dying. Since the graphene is too small, the bacteria will swallow the graphene into the belly, as if a person eats foreign matter. If the diarrhea is uncomfortable, the bacteria will die out slowly. "This is the physical sterilization method of graphene, so that bacteria will not produce resistance." Internationally renowned journal "The American Chemical Society Journal" published their research papers, and in the column to focus on their research results Reported.

Luo Yang said that within the next 1-2 years, nano-scale graphene is expected to become a new external use of antimicrobial drugs, antibacterial materials. At the same time, graphene may also be used in gauze, catheters and other medical devices to effectively prevent cross-infection. (Reporter Tang Xianwu correspondent He Lei)

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