Antiseptics and Disinfectants

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MicroBio

Last updated 4:13 PM on 3/5/26
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7 Terms

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Alcohols (e.g., Isopropanol)
Mechanism: Denature proteins and disrupt cell membranes. Applications: Hand sanitizers, antiseptic wipes, and household disinfectant sprays like Lysol.
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Aldehydes (e.g., Formalin/Glutaraldehyde)
Mechanism: Denature proteins. Applications: Formalin is used for tissue specimens; Glutaraldehyde (Cidex) is a sterilant for medical equipment.
3
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Chlorhexidine
Mechanism: Disrupts cell membranes. Applications: Antiseptic skin washes (like Hibiclens) and prescription mouthwashes.
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Halogens (Iodine/Chlorine)
Mechanism: Denature proteins. Applications: Iodine (Betadine) for skin washes; Chlorine (Bleach) as a surface disinfectant.
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Hydrogen Peroxide
Mechanism: Denatures proteins and DNA; disrupts cell membranes. Applications: 3% solution used for disinfecting inanimate surfaces and soft contact lenses.
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Phenolics
Mechanism: Denature proteins and disrupt cell membranes. Applications: Antiseptics (e.g., throat lozenges) and various household disinfectants.
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Quaternary Ammonium Compounds (Quats)
Mechanism: Denature proteins and disrupt cell membranes. Applications: Antiseptics (mouthwashes like Scope) and disinfectants like Lysol.