Categories
C&EN

Flea and tick treatments for pets – in C&EN

Trying to protect your pets from fleas and ticks? There are a number of treatments that aim to deter them, or get rid of them if your pet already has them. This graphic in Chemical and Engineering News looks at the methods used and the chemistry behind them. Click through to the C&EN site to […]

Categories
Alcohol Chemistry

Port wine chemistry: Types, colours, ageing and flavours

Port’s often relegated to the festive period, and forgotten about for the rest of the year (at least, in the UK). Which is a shame, as if you look beyond the standard ruby port, there are several other delicious types, particularly the varieties that are aged for longer periods of time. There’s also some interesting […]

Categories
Biochemistry

Six key pregnancy hormones and their roles

Pregnancy is a rollercoaster of shifting hormone levels which can have numerous effects. This graphic looks at six key hormones during pregnancy, their roles in the development of the baby, and other effects.

Categories
Biochemistry

Peonin and the colour of peonies

Peonies bloom fleetingly at the end of spring and start of summer, usually only lasting around 10 days. Inspired by this tweet from Dr Jess Wade, here’s a quick look at the molecule which gives them their colour. There’s more on the pH dependence of anthocyanin colour here.

Categories
Biochemistry

Do daffodils kill other flowers in vases?

Spring is here, and daffodils are blooming. You might have some in your garden, or you might pick some up at a florist to put in a vase at home. If you do, it’s a good idea to place them in a vase on their own – there are chemical reasons why daffodils and other […]

Categories
Chemistry History

Today in chemistry history: Sir Norman Haworth, vitamin C, and Haworth projections

Today (19th March) marks the birthday of Sir Norman Haworth – who also died on the 19th March. Haworth won a Nobel Prize in 1937 for his work on carbohydrates and vitamin C. He also developed a way of drawing 3D sugar structures, known as Haworth projections.