Systems Microbiolog6

Systems Microbiolog6 - Sterilants the same extensive effect...

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Systems Microbiology ° Chemical Control Methods o These mechanisms tend to be harmful to human cells in the same way that they’re harmful to bacterial cells o Selective toxicity o Nonselective chemicals, such as bleach, are also useful, but they’re toxic o Bacteriostatic – no permanent change – can continue to grow later o Bacteriocidal – the bacterial drop off very rapidly – it’s permanent o Bacteriolytic o Minimal inhibitory concentration (MIC) ° Varies depending on media, temperature, the number of organisms you start with ° You have to determine it in your lab o Chemical agents used externally: ° Control of nonpathogenic microbes – you might want to remove the microbes for certain industrial processes, such as curing paint. ° Control of pathogenic microbes –
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Unformatted text preview: Sterilants the same extensive effect as autoclaving they can remove spores o Toxic gas chambers can sometimes do this o Liquid solutions, like sodium chloride this might be used for an expensive instrument that you might want to repeatedly sterilize This method is used for flexible endoscopes, which must be sterilized each time theyre used Special devices are made which specially fit the particular device and sterilize it in a controlled manner Devices like these are very expensive Disinfectants o Decontaminates, gets rid of the infectious population, but it wont get rid of spores o Lysol is an example Antiseptics o Disinfectants that are safe to be used topically on human skin o You wouldnt want to take these internally though...
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This note was uploaded on 01/24/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

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