? Different disinfection factors have different sterilization mechanisms. The efficacy of disinfectants is the result of many factors, including the function of disinfectants themselves, as well as the number and types of microorganisms contained on the surface of disinfection service. Usually, the main factor to be considered is whether the disinfectant is easy to kill vegetative bacterial cells or whether it can kill spores with strong tolerance to disinfectant. Another factor that must be considered and emphasized is whether there are bacteria in other substances, such as blood, feces and organic matter. The existence of these pollutants shows that the surface is not clean, which can quickly passivate some fungicides and weaken their effectiveness.
From the function of disinfectant itself, disinfectant can not only attack a special part of bacterial cells, but also destroy a component of them. Disinfection service experts said that disinfectants can be divided into:
Effect of (1) on bacterial protein. Such as heavy metal salts, acids, bases, oxides, etc. , can destroy the structure of protein, lead to biological protein denaturation, at the same time means the loss of biological function in protein, lead to protein coagulation denaturation, and naturally die. Bacteria contain a lot of protein. The degeneration of protein leads to the destruction of bacterial structure and the loss of function, which eventually leads to the death of bacteria.
(2) Destroy or damage the cell membrane. For example, chlorine dioxide and peracetic acid are both strong oxidants, which can completely destroy the structure and function of cell membrane, lead to the loss of key functional structure of cell membrane, and thus lead to the real death of cells.
(3) the destruction of the cell wall. For example, lysozyme can destroy the structure of peptidoglycan, cause bacterial lysis, make bacteria unable to synthesize a complete cell wall, and make bacteria lose their protective barrier and die.
(4) destroying the nucleic acid of bacteria. Peroxide, hypochlorous acid and ultraviolet radiation can destroy the structure of DNA or RNA in disinfection service, thus changing or inhibiting its activity.
(5) Inactivate the activity of key enzymes. Enzymes are active catalysts for all living things, which can support the growth and metabolic activities of cells. When the enzyme loses its activity, life disappears. Some disinfectants, such as phenol and phenolic aldehyde, can enter cells and react with some key enzymes, which makes the enzyme activity lose and hinders the growth and metabolism of bacteria. However, if the passivation is not complete, it may repair the activity of enzymes, restore the growth ability of injured bacteria, and re-pollute the surface after a few hours.
Most disinfectants can't kill all pathogenic microorganisms. Shanghai Fantong Biological Disinfection Service Company suggested that the selection of disinfectants should be combined with the characteristics of target pathogenic microorganisms and disinfectants, and the target can be effectively identified.
A new type of space integral three-dimensional disinfection-vaporized hydrogen peroxide disinfection technology
? The vaporized hydrogen peroxide disinfection technology of Shanghai Fantong Biological Disinfection Service vaporizes 35% hydrogen peroxide liquid into hydrogen peroxide vapor through high-temperature flash evaporation, and changes the attack component (protein) of cell structure (cell wall, cell membrane) through the released strong oxidative free radicals (OH), thus killing pathogenic microorganisms. The research shows that vaporized hydrogen peroxide has broad-spectrum bactericidal performance, which can kill bacteria, bacterial spores, fungi and viruses, especially bacterial spores, and achieve the killing rate of biological indicator Bacillus subtilis 6-log. Residual hydrogen peroxide is degraded into water and oxygen, which is pollution-free, residue-free, and drug-resistant bacteria, including common multidrug-resistant bacteria, such as methicillin-resistant Staphylococcus aureus, vancomycin-resistant Enterococcus, and multidrug-resistant Acinetobacter baumannii. It is a new means of disinfection prevention and control.
? Kino, a vaporized hydrogen peroxide disinfection robot developed by the company, can provide customized disinfection services for microbial laboratories and kill super bacteria. Disinfection stock solution uses food-grade hydrogen peroxide, and secondary distillation produces vaporized hydrogen peroxide, which is decomposed into water and oxygen, and has no secondary residue on equipment and personnel. It is a green disinfectant. Kino adopts built-in WIFI and IOT technology, which can be controlled by computer or remotely. One person controls the operation of multiple devices, monitors the operation of devices, completes remote troubleshooting and software upgrade, records disinfection parameters, and can print reports. Among all kinds of environmental disinfection service technologies, vaporized hydrogen peroxide disinfection service technology is recognized as an ideal sterilization method and a new choice for biological purification in pharmaceutical, biological and medical and health industries.