It's very round, the roundest molecule known to science.

All are members of a class of molecules known as lantibiotics.

These then formed the molecules known as the amino acids and nucleotide.

And they all involve molecules known to operate in human brains.

This oxidative stress is caused by metabolism and the production of molecules known as free radicals.

It works by inhibiting the production of prostaglandins, molecules known to cause these symptoms.

While nicotine seems to affect all the molecules known to influence weight, Li says it's clear the story is even more complex.

In all organisms cell membranes are made of molecules known as phospholipids.

UV light is absorbed by molecules known as chromophores, which are present in the eye cells and tissues.

Proteins are made from a catalogue of fairly tiny molecules known as amino acids.