Aroma Chemistry Biology

The chemistry of cats: Allergies, catnip and urine

Why are some people allergic to cats? Why does cat pee smell so bad? And why do cats love catnip? This graphic looks at some of the answers!

C&EN Coronavirus Medicinal Chemistry

A guide to COVID-19 testing – in C&EN

We’re several months into the COVID-19 pandemic, and testing is vital to preventing the spread of the novel coronavirus. The latest edition of Periodic Graphics in Chemical and Engineering News looks at how current diagnostics work and what they tell us. Click to view the full graphic on the C&EN site.

Chemical Warfare Chemistry in the News

Tear gas: Chemistry, dispersal methods, and effects

The US government have been busy this week denying that pepper spray is a chemical (spoiler, it is a chemical). They’ve also been at pains to point out that it’s not the same as tear gas, which is at least technically correct. I’ve had a lot of requests over the past week for a graphic […]

Chemistry in the News Coronavirus Medicinal Chemistry

Antibody tests, part 2: How do antibody tests work?

Last week, we looked at what coronavirus antibody tests can and can’t tell us. In part 2 of this series of graphics on antibody testing, we look at how the tests work to arrive at their results. As we’ll see, there’s not only one type of antibody test and they can vary in accuracy and […]

Biochemistry Biology C&EN

The science of exercise – in C&EN

Many of us are alleviating the boredom of lockdown during COVID-19 by getting out and exercising. How does the body produce the energy it needs, is there any science behind ‘runner’s high’, and what causes the aches and pains afterwards? This month’s edition of Periodic Graphics in Chemical & Engineering News takes a look. View […]

C&EN Medicinal Chemistry

Cannabidiol (CBD): Medicine from hemp – in C&EN

The first CBD-containing drug was approved in the US in 2018. This graphic looks at what this drug, Epidiolex, is used to treat and whether the increasing number of CBD supplements are effective. View the full graphic on the Chemical & Engineering News site.