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Why is isopropanol used in the disinfecting gel, and is 70% ethanol not sufficient?
Why is isopropyl alcohol (isopropanol) added to ethanol for bactericidal and virucidal gels, considering that while 70% ethanol is optimal for intact skin and effective against various bacteria, fungi, and enveloped viruses (like HIV and HBV) due to their fatty envelopes, it is less effective against non-enveloped viruses, ineffective against spores, and loses bactericidal properties below 50%, leading to the recommendation of higher concentration mixtures such as 80% ethanol with 5% isopropanol for better inactivation of enveloped viruses?
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