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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Disinfectant |
Chemicals used for killing or inhibiting mictobial growth, meant to be used on inanimate surfaces |
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Most common type of disinfectant |
Germicidal |
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Germicidal |
Kills most microbes |
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Antiseptic |
Antimicrobial chemicals appropriate for use on living tissue such as skin |
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Most common type of antiseptic |
Bacteriostatic |
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Bacteriostatic |
Inhibits mictobial growth but does not kill bacteria |
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General groups of antimicrobial reagents |
1. Alcohols 2. Aldehydes 3. Halogens 4. Phenols/Phenolics/Bisphenols 5. Quaternary Ammonium Compounds 6. Biguanides 7. Heavy Metals |
7 |
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Alcohols (Action and Examples) |
Denature proteins and dissolve lipids i.e rubbing alcohol, hand sanitizer |
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Aldehydes (Action and Examples) |
Denature proteins i.e formaldehyde, glutaraldehyde |
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Halogens (Action and Examples) |
Inhibit protein function Oxidizers i.e iodine, chlorine |
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Phenols/Phenolics/Bisphenols (Action and Example) |
Disrupt membranes, denature proteins i.e triclosan |
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Actions of Quaternary Ammonium Compounds |
Denatures proteins, disrupts membranes |
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Biguanides (Action and Example) |
Attack cell membranes i.e chlorhexidine |
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Heavy Metals (Action and Examples) |
Denatures proteins i.e silver, copper, mercury |
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Characteristics of an ideal disinfectant |
1. Highly effective, even when dilute 2. Nontoxic 3. Inexpensive 4. Biodegradable 5. Harmless to wood, metal, glass, and human skin |
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What solid medium is typically used to test for disinfectant and antibiotic sensitivity? |
Mueller-Hinton plates |
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