With an e-cigarette your nicotine is delivered with propylene glycol and vegetable glycerin rather than tar and ash.

FORBES: Will E-cigarettes Become A Taxing Experience ?

It has also improved on Rebetron with a drug called Peg-Intron, a "pegylated" combination of interferon and polyethylene glycol (Peg for short).

FORBES: The Next HIV?

The glycol is, in turn, covered by a membrane made of two layers of lipids (fat-like molecules).

ECONOMIST: Medical diagnostics

They consist of clusters of zinc-oxide crystals, which are easily precipitated from a solution of zinc acetate in diethylene glycol (better known as antifreeze) at the right temperature.

ECONOMIST: Microlasers