In response to the current outbreak of pneumonia, health experts pointed out: "disinfection is an important means to cut off the transmission path and control the epidemic situation."
Disinfectants are often used in daily life, which are easy to stimulate the respiratory tract, damage the intestinal flora and affect the health of family members. Therefore, when indoor disinfection is not appropriate, it will also bring health risks to the human body. (except formaldehyde)
At present, the disinfection products on the market are divided into the following two categories according to the action parts:
Direct effect on internal genetic material nucleic acid: ultraviolet disinfection
Inactivated proteins: most chemical disinfectants, high temperature
Protein inactivation mainly changes and destroys the secondary or tertiary structure by heating, dehydration, oxidation, salinization, deamination, changing charge and so on.
Ethanol is effective against novel coronavirus, because it can kill enveloped viruses.
Specifically, alcohol has certain fat solubility. According to the principle of "similar dissolving", the lipid envelope composed of phospholipid bilayer can be destroyed. At the same time, when contacted with glycoproteins on the surface of the virus envelope, these proteins will be dehydrated and denatured, thus inactivating the virus.
However, there are also some safety hazards in alcohol disinfection, such as not close to the heat source when using alcohol, and not directly spray into the air to avoid fire; do not spray alcohol on clothes to avoid static electricity causing fire; when disinfecting the surface of electrical appliances, attention should be paid to cut off the power supply, and use it after alcohol volatilization.
Another famous disinfectant is chlorine disinfectant.
All chlorine containing disinfectants have one thing in common - they dissolve in water to form hypochlorous acid (HClO), a substance with bactericidal activity.
Hypochlorite has small molecular weight and strong oxidation. After contacting with the novel coronavirus, it first oxidized its envelope protein to make it denatured, and destroyed its protein shell, which made it lose protein crosslinking, thereby further destroying the biological enzyme system and genetic gene, and inactivating it.
Although chlorine containing disinfectants are not as easy to cause fire and damage electrical appliances as alcohol disinfectants, there are also potential safety hazards.
Chlorine containing disinfectants are generally irritant. Masks and gloves should be worn and protective work should be done when they are configured and packaged. Chlorine containing disinfectants have strong oxidizing effect. When they are stored, they should be kept away from high temperature, fire and children. Chlorine containing disinfectants should be kept away from metal objects and non-ferrous clothing to avoid corrosion or fading. (except formaldehyde)
For many enterprises, there are problems such as low efficiency, unsafe and unprofessional in self-made disinfection. Choosing a professional disinfection organization can solve these problems perfectly, which is that the indoor environment quickly reaches the safety standard.