Saturday, 21 March 2020

The science of soap – here’s how it kills the coronavirus

The science of soap – here’s how it kills the coronavirus
https://www.theguardian.com/commentisfree/2020/mar/12/science-soap-kills-coronavirus-alcohol-based-disinfectants

A science student from Malaysia asked me about soap and its effectiveness in killing the coronavirus.

Here you are, the article explains how soap “kills” the coronavirus more cheaply and effectively. You really don’t need the sanitiser unless you are not within reach of soap.

Coronavirus consists of three key building blocks: ribonucleic acid (RNA), proteins and lipids.

When you touch a surface with a virus particle on it, it will stick to your skin and hence get transferred on to your hands.

Washing the virus off with water alone might work, but soap in soapy water contains fat-like substances known as amphiphiles, some of them structurally simialr to the lipids of the virus membrane, will loosen the bond between the virus and the skin as well as the bond that holds the proteins, lipids and RNA in the virus together.

Thank you for reading.