During the prevention and control of the new crown pneumonia epidemic, the Guangzhou Centers for Disease Control and Prevention discovered through monitoring and inspection of the living environment of patients diagnosed with new coronavirus pneumonia. The nucleic acid of the new coronavirus was found on the door handle of a confirmed patient's home.
Recently, the professional medical journal "New England Journal of Medicine" published a new research result. Scientists from the National Institutes of Health, the Centers for Disease Control and Prevention, the University of California, Los Angeles, and Princeton University simulated the infection of patients with the new crown pneumonia virus. The virus deposition caused by coughing and contact with objects in the home or hospital environment has evaluated the stability of the new coronavirus in different environments. The study found that the survival time of the new coronavirus on cardboard is 24 hours; on plastic, stainless steel and other surfaces, the virus can survive up to 72 hours; the survival time on copper is the shortest, only 4 hours.
The experimental results over the years have confirmed that copper has rapid and extensive antibacterial effects on some very toxic bacteria, fungi and viruses, including Acinetobacter baumannii, Aspergillus niger, Campylobacter jejuni, Escherichia coli, and influenza A ( H1N1), Norwalk virus, Pseudomonas aeruginosa, adenovirus, Candida albicans, Helicobacter pylori, Mycobacterium tuberculosis, poliovirus, etc. Scientific tests by relevant institutions have shown that pure copper and copper alloys with a copper content of more than 60% (such as brass, bronze, copper-nickel alloys, etc.) have good antibacterial properties, and the higher the copper content, the better the antibacterial effect.
Copper is a veritable "treasure metal". In recent years, a special symbol "Cu+" for copper has appeared on some medical equipment, furniture and accessories. This symbol indicates that the product contains antibacterial copper-the most effective contact surface antibacterial material in the world. U.S. Environmental Protection Agency EPA standard tests show that copper, brass, and bronze can effectively fight a variety of pathogenic bacteria. At room temperature, antibacterial copper can inhibit bacterial growth 24 hours a day, and kill more than 99.9% of methicillin-resistant Staphylococcus aureus, vancomycin-resistant enterococcus, Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa, and Escherichia coli can minimize "secondary pollution", and the effect is far superior to other materials including silver-containing coatings, stainless steel, and antibacterial plastics.
Antibacterial copper, as a natural antibacterial material, has no harm to people and the environment, and is 100% recyclable. The antibacterial copper surface does not have any form of coating, even if it is repeatedly worn, polluted, naturally oxidized and even rusted to varying degrees, its antibacterial effect will not be damaged. In front of the powerful antibacterial copper, the overbearing bacteria "counsel".
Nosocomial infections of germs have always plagued the medical profession. The culprits leading to nosocomial infections include methicillin-resistant Staphylococcus aureus, methicillin-sensitive Staphylococcus aureus, Clostridium difficile infection and Escherichia coli. These bacteria pose a huge hidden danger to the health of patients. In addition to blocking the transmission of pathogens, the main method of infection control of drug-resistant bacteria is the application of antimicrobial materials to environmental surfaces to improve infection control.
"Applied and Environmental Microbiology" published a research result. Scientists put the germs on the surface of stainless steel that simulates fingerprints, and found that these germs can survive for a long time. If they are replaced with copper or copper alloy surface germs, it is very difficult. Dying.
