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by: Ezequiel Orn


Ezequiel Orn
GPA 3.89


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About this Document

Class Notes
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This 3 page Class Notes was uploaded by Ezequiel Orn on Sunday September 6, 2015. The Class Notes belongs to BIO 226N at University of Texas at Austin taught by Staff in Fall. Since its upload, it has received 34 views. For similar materials see /class/181732/bio-226n-university-of-texas-at-austin in Biology at University of Texas at Austin.




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Date Created: 09/06/15
table 7 8 chemical Agent Phenol and Phenolic 1 P trial 2 Phenolics 3 Bisphencls aiguanides Chlurhexidine Halogens Alcohols Heavy Metals and r SurfaceActive Agents i Soaps and acid anionic detergents Z Acidcanionic detergents 3 Cationic detergents quaternary ammonium compounds CIlcllll39mAgl39llrs Used in Control tMirrobial Growth Mechanism nFAction Disruption onlasma membrane denaturation ofenzymest Disruption orplasma membrane denaturation orenzymes Probably disruption or plasma membrane Disruption ofplasma membrane iodine inhibits protein func tion and is a strong oxidizing age t chlorine forms t e strong oxidizing agent hypo chlorous acid which alters cellular components Protein denaturation and lipid dissolution Denaturation ofenzyrnes and vuch Mechanical removal or microbes through scrubbing Not certain may involva en me inactivation or 39on Enzyme inhibition protein enaturation and disruption of plasma membranes Preferred Use Rarely used except as a standard orcomparison Environmental surfaces instruments skin surfaces and mucous membranes Disinfectant hand soaps and sitin lotions Skin disinfection especially ror surgical scrubs Iodine is an effective anti eating utensils household items and glassware Thermometers and other Silver nitrate may be used to I 39o thalmia e disinfect skin and muco membranes copper sulfate is an algicidc anatorum mercurochrome us Skin degerming and removal of debris Sanitizers in dairy and Food processing industries Antiseptic For skin instruc ments utensils rubber go ds Seldom used as a disinfectant or antiseptic because orits irritating qualities and dis agreeable o or of organic materia O phenylphenoi is an example Triciosan is an especially corn effective against gramcpnsid izt bactericidal to grampositive an gramnegatives nontoxic persistent iodine and chiorine may act alo r as c on ne o omp ems of inorganic and organic compounds Bactericidal and Fungicidal but not effective against endospores or nonenveloped viruses commonly used alcohols are ethanol and isopropano Heavy metais such as silver and mercury are blocidal any antibacterial soaps civil tain antimicrobials Wide spectrum of activity nontoxic noncorrosive Fastcacting Bactericidal bacteriostatic 39 39 cidal Zephiran c and Cepacoi Mechanism afAm39dn Metabolic inhibition mostly al fectin molds action not related to their acidity Protein denaturatiun Protein denaturation Oxidation propionzte used in bread all ere mainly antifungals Glutamldehyde Gidexm is ion or medical equipmenn Excellent sterilizing agent especially For objects that would be damaged by hsat Contaminated surfaces DXygEnSensltlve anaero est Widely used to ontrol molds and 50m bacteria in foods and cosmetics Very erreeeiye antimicrobials Ethylene oxide is the most commonly use V Ozone ls widely used as a supplement For chlorination hydrogen percxide is a poor antiseptic but a goo rant Paracetic icld is Fe especially erreeelye Attractant gt o tumble


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