| A | B |
|---|
| Alcohols-made of? | isopropyl in solutions of 50-95% |
| alcohols-how do they function | Act as surfactants dissolving membrane lipids and coagulating proteins of vegetative bacterial cells and fungi |
| alcohol--level of germacidal? | Intermediate level |
| Hydrogen Peroxide | -Produce highly reactive hydroxyl-free radicals that damage protein and DNA -also decomposing to O2 gas – toxic to anaerobes |
| Hydrogen Peroxide-level of germacidal? | Antiseptic at low concentrations; strong solutions are sporicidal |
| Aldehydes--how acts? | Kill by alkylating (chemical modification of) protein and DNA |
| Glutaraldehyde in 2% solution (Cidex) | Aldehyde, used as sterilant for heat sensitive instruments, High level |
| Formaldehyde | disinfectant, preservative, toxicity limits use, Intermediate to high level |
