How should the incubator be cleaned and sterilized? The commonly used methods in practice are: seventy-five percent alcohol spraying and ultraviolet radiation. The premise of sterilization is to transfer the cells first.
1, ultraviolet radiation.
UV disinfection is the use of the appropriate wavelength of ultraviolet radiation can damage microbial cells in DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) molecular structure, causes the growth of cell death and (or) regeneration of cell death, achieve sterilization effect. UV disinfection technology is based on modern science, medical and epidemic prevention light kinetics, using specially designed UVC band high efficiency, ultraviolet radiation water high strength and long life, the bacteria, viruses, parasites, algae and other pathogens directly kill, to achieve the purpose of disinfection. In the routine, the ultraviolet bactericidal lamp is used to disinfect. And the bactericidal principle of the mould incubator is the use of ultraviolet light to disinfect. People often take things to the sun and take advantage of the same principle.
2, seventy-five percent alcohol spray.
The use of alcohol disinfection is also a common way of disinfection, alcohol can penetrate into the body of bacteria, so that the proteins that constitute the bacteria solidify. So alcohol is used as a disinfectant in medical and routine use. When 95% of pure alcohol is used, the effect of protein solidifying is stronger because the alcohol concentration is too high. When a high concentration of alcohol contacts with bacteria, the surface of bacteria can coagulate quickly, form a thin layer, and organize alcohol to penetrate into the cell body. The cells inside the bacteria can't be completely killed. Some bacteria meet the high concentration of alcohol, the rapid production of protective reaction, the formation of a hard shell of the spore to combat alcohol damage. At the right time, the cells in the film will resurrect. Therefore, the use of alcohol concentration reach the purpose of disinfection and sterilization. If 70% - 75% alcohol is used, it can make the protein of bacterial composition solidify, and can not form thin film. It can make alcohol continue to penetrate into the interior and make it completely sterilize. If the concentration of alcohol is less than 70%, it will not kill the bacteria completely. So the concentration of alcohol can better achieve the effect of disinfection.