DISINFECTANT TECHNIQUE
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This document discusses several common chemical disinfectants including phenol, iodine, chlorine, cresol, chloroxylenol, and potassium permanganate. It provides key characteristics of ideal disinfectants and then describes each individual disinfectant, noting what they are commonly used to disinfect and how their mechanisms of action kill or inhibit microorganisms.
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1. Antiseptics are antimicrobial substances applied to living tissue to reduce infection and include substances like alcohols, quaternary ammonium compounds, chlorhexidine gluconate, iodine, and phenol.
2. Joseph Lister introduced the use of antiseptics like carbolic acid in surgery in 1867 based on Louis Pasteur's germ theory of disease.
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This document discusses antiseptics and disinfectants. It defines them and outlines their differences. Antiseptics are used on living surfaces and tissues to prevent or treat infection, while disinfectants are used on inanimate surfaces. An ideal antiseptic/disinfectant is highly effective, non-toxic, and chemically stable. Various classes of antiseptics and disinfectants are described, including phenol derivatives, alcohols, aldehydes, halogens, oxidizing agents, and others. Their mechanisms of action and uses are also summarized.
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This presentation discusses antiseptics and disinfectants used to destroy or inhibit pathogenic microorganisms. It defines key terms like antiseptics, disinfectants, sterilization and provides examples. Antiseptics are used on living surfaces like skin while disinfectants are used on non-living surfaces. Various classes of antiseptics and disinfectants are described such as aldehydes, phenols, alcohols, heavy metals, chlorines, iodophores and cationic surfactants. Specific antiseptics discussed include formaldehyde, cresol, ethanol, mercury compounds, chloroxylenol, povidine-iodine and chlorhexidine
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DESCRIBE AND DISCUSS ANTISEPTICS AND DISINFECTANTS.pptx
DESCRIBE AND DISCUSS ANTISEPTICS AND DISINFECTANTS.pptx
DESCRIBE AND DISCUSS ANTISEPTICS AND DISINFECTANTS.pptx
DESCRIBE AND DISCUSS ANTISEPTICS AND DISINFECTANTS.pptx
Chemical sterilization
This pdf file is completely about chemical sterilization that comes under one of the type of Sterilization techniques
Sterilisation chemical (1)
This document discusses various chemical sterilization methods. It defines sterilization, disinfection, antiseptics and asepsis. The main chemical methods of sterilization discussed are alcohols, aldehydes, phenols, halogens, oxidizing agents, salts, surface active agents, dyes and vapor phase disinfectants. Specific chemicals under each category are explained, along with their modes of action and appropriate uses. Factors affecting the potency of disinfectants are also outlined. The document provides a detailed overview of chemical sterilization.
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N-fixation ability limited to few bacteria, either as free-living organisms or in symbiosis with higher
arya-ppt-141210223424-conversion-gate01 (4).pdf
The document discusses various physical and chemical methods for controlling microbial growth, including sterilization, disinfection, and sanitation. It describes several sterilization techniques such as heat, filtration, radiation, and various chemical disinfectants including phenols, halogens, alcohols, heavy metals, and quaternary ammonium compounds. The methods discussed aim to kill microbes or inhibit their growth on surfaces and in materials like foods and medical supplies.
Antiseptic drugs,disinfectants and antibiotics.
This document summarizes key concepts regarding pharmacology of antiseptics, disinfectants, and antibiotics. It defines sterilization, disinfection, and antiseptics. It describes the ideal properties of antiseptics/disinfectants and their mechanisms of action. Various classes of antiseptics and disinfectants are described based on their chemical composition and mechanisms, including phenols, iodine, chlorhexidine, alcohols, acids, and others. The document also discusses antibiotics, including their mechanisms of action, bacteriostatic vs bactericidal effects, drug resistance, and classification.
Disinfection , Disinfectants , Derar ALJarrah
are antimicrobial agents that are applied to non-living objects to destroy microorganisms that are living on the objects.Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores; it is less effective than sterilization, which is an extreme physical and/or chemical process that kills all types of life.
DISINFECTION & DISINFECTANTS.pptx
This document provides an overview of disinfection and disinfectants. It begins by defining key terms like disinfection, sterilization, and antiseptics. It then discusses the types of disinfection like concurrent, terminal, and precurrent disinfection. Factors that impact disinfectant effectiveness and the ideal properties of a disinfectant are reviewed. Various chemical and physical disinfecting agents are described along with their mechanisms of action. The document concludes by emphasizing the importance of proper hand hygiene and other infection control procedures.
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DESCRIBE AND DISCUSS ANTISEPTICS AND DISINFECTANTS.pptx
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- 2. These are chemical substances which inhibit the growth or kill microorganism on inanimate objects such as instruments. DISINFECTANTS
- 4. Characteristics of an ideal disinfectants • Chemically stable • Cheap • Nonstaining • Cidal, destroying spores as well. • Active against all pathogens • Require brief time of of exposure • Active even in presence of blood, pus, exudates and excreta.
- 6. • Earliest used , reference standard • Protoplasmic poison • Injures tissues & cells at high conc. • Denauration of bacterial proteins • To disinfect urine , faeces , pus. PHENOL
- 7. • Rapidly acting , broad-spectrum agent. • Acts by iodinating and oxidizing microbial protoplasm • Use for cuts, degerming skin before surgery. • High conc. cause burns. IODINE
- 8. • Rapidly acting potent germicide. • 0.1-0.25 ppm kills most pathogen in 30 secs. CHLORINE
- 9. • Methyl derivative of phenol • Less damaging to tissues than phenol. • 3-10 times more active • Use for disinfection of utensils , excreta & for washing hands. CRESOL(Lysol)
- 10. • Phenol derivative • Doesnot coagulate proteins • Noncorrosive, nonirritating to skin • Commercial 4.8% solution used for surgical antiseptics • Skin cream and soap 0.8% • Mouth wash 1% CHLOROXYLENOL(Dettol)
- 11. • Purple crystals ,highly water soluble , liberates oxygen • Action is slow, high conc. cause burns • Used for gargling ,irrigating cavities & wounds • Also used to disinfect water in ponds POTTASIUM PERMANGANATE