The Welcome Collection is showing a free exhibition of the work of the Festival Pattern Group - a project at the 1951 Festival of Britain, involving X-ray crystallographers, designers and manufacturers. Diagrams of atomic structures inspire an eclectic array of patterns on curtains, wallpapers, carpets, lace, dress fabrics, ties, plates and ashtrays. 
Here is an insulin pattern which hasn't been seen since for over 50 years. 
The Welcome Collection is at 183 Euston Rd, London NW1 2BE 
Open Tuesday- Sunday with a late night opening on Thursday.