"We are seeing an obesity and chronic disease crisis, " says Professor Boyd Swinburn, one of the world leading experts in obesity, who is based at Deakin University in Australia.

BBC: Obesity: The story so far

Researchers from Deakin University near Melbourne, Australia say tests on rats have shown the technology could also mean people need to take a third as much insulin as they do with when it is in its conventional form.

BBC: Insulin smoke signals breakthrough

Paul Zimmet, director of the International Diabetes Institute at Monash University in Melbourne, reviewed the Deakin research for Eiffel.

BBC: Insulin smoke signals breakthrough