Antimicrobial activity can be influenced by many factors such as formulation effects, presence of an organic load, synergy, temperature, dilution, and test method.
Disinfection is the process of removing micro-organisms, including potentially pathogenic ones, from the surfaces of inanimate objects. From: Progress in Medicinal Chemistry, 1998.
The level of disinfection is dependent on the intended use of the object: critical (items that contact sterile tissue such as surgical instruments), semicritical (items that contact mucous membrane such as endoscopes), and noncritical (devices that contact only intact skin such as stethoscopes) items require ...
Several physical and chemical factors also influence disinfectant procedures: temperature, pH, relative humidity, and water hardness. For example, the activity of most disinfectants increases as the temperature increases, but some exceptions exist.
Disinfection describes the use of a chemical or physical process to inactivate or eliminate microbial organisms on inanimate objects or surfaces. These processes destroy or irreversibly inactive most pathogens, but are generally less effective against bacterial endospores.
Sanitizing reduces the remaining germs on surfaces after cleaning. Disinfecting can kill viruses and bacteria that remain on surfaces after cleaning. By killing germs on a surface after cleaning, disinfecting can further lower the risk of spreading germs that can cause illness.
Although chlorine has been a literal lifesaver with regard to drinking water, it also has the potential to form byproducts that can cause harmful health effects. Chlorine can react with organic materials in water to form disinfection byproducts (DBPs).
Several factors influence the effectiveness of chemical sanitizers. The most critical include concentration, temperature, contact time, water hardness, and pH. Concentration Sanitizer solution is a mix of chemical sanitizer and water.
Low-level germicides kill vegetative cells and some enveloped viruses, but are ineffective against endospores. The effectiveness of a disinfectant is influenced by several factors, including length of exposure, concentration of disinfectant, temperature, and pH.
Water hardness: A factor not always considered influencing disinfectant activity is water hardness.
Which of the following is NOT a factor that affects the efficacy of a disinfectant? The presence of inorganic matter.
Factors that affect the efficacy of both disinfection and sterilization include prior cleaning of the object; organic and inorganic load present; type and level of microbial contamination; concentration of and exposure time to the germicide; physical nature of the object (e.g., crevices, hinges, and lumens); presence ...
Poor sanitation is linked to transmission of diarrhoeal diseases such as cholera and dysentery, as well as typhoid, intestinal worm infections and polio. It exacerbates stunting and contributes to the spread of antimicrobial resistance.
4.3 Health hazards
It is a toxic and carcinogenic chemical and can cause eye irritation, cough, shortness of breath, skin irritation, chronic bronchitis and exacerbation of asthma. It can also react with chlorine to form another carcinogen.
The specific type of disinfectant to use, its effective concentration, contact time and once made up how long it will be stable for. The target microorganisms for which the disinfectant is known to be effective (and ones for which it is not effective, if appropriate).
A mix of bleach and water or a bleach-based cleaner are your best bets. Also good are hydrogen peroxide and wipes made with a different type of alcohol called ethyl alcohol.
Some of the factors that affect both disinfection and sterilization efficacy are the prior cleaning of the object; the organic and inorganic load present; the type and level of microbial contamination; the concentration of and exposure time to the germicide; the nature of the object (e.g., crevices, hinges, and lumens ...
Disinfection is achieved through addition of a strong oxidant, such as chlorine (Cl2), sodium hypochlorite (NaClO), monochloramine (NH2Cl), chlorine dioxide (ClO2), ozone (O3), UV irradiation or potassium permanganate [134,135].