How do the tests for coronavirus work?
Across the world, countries are scrambling to increase their testing capacity for the virus — how are these tests carried out and how do they work? more
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07-Jul-2016
The second in the ‘Everyday Compounds’ series looks at a chemical that the majority of us probably have sitting somewhere in our home. Aluminium chlorohydrate is the active ingredient in many antiperspirants, so how does it work – and why does a casual google search for it bring up a plethora of links with breast cancer?
Aluminium chlorohydrate (and other aluminium-based compounds that are sometimes employed instead) work as antiperspirants by temporarily ‘plugging’ sweat ducts, preventing the passage of sweat to the skin’s surface. The exact mechanism by which this occurs has been debated, but it’s generally agreed to be because the aluminium chlorohydrate can form a polymeric aluminium hydroxide-protein ‘plug’, which physically partially blocks perspiration from escaping the sweat glands. This plug slowly breaks down, which is why the effect of anti-perspirants isn’t permanent, and they have to be reapplied.
How do the tests for coronavirus work?
Across the world, countries are scrambling to increase their testing capacity for the virus — how are these tests carried out and how do they work? more
Four ways to destroy coronavirus
How do you fight something you can’t see? That’s the question when it comes to the coronavirus crisis which currently has many of us holed up at home. Physical distancing is one important answer to preventing the spread of the virus, as avoiding catching it in the first place stops you from ... more
Coronavirus: How hand sanitisers protect against infections
As coronavirus continues its spread, panic-buying has swept supermarket shelves of hand sanitisers. What’s in these sanitisers and how effective are they in comparison to hand washing? This graphic takes a look. more