Professor Mark Kendall is working on the development of the needle-free ‘Nanopatch’, to revolutionize delivery of vaccines in the developing world making them cheaper and potentially saving the lives of the millions of people who die from infectious diseases. The traditional syringe-and-needle method of vaccination is expensive due to the need to keep the vaccines inside the “cold chain”. Professor Kendall’s patch is coated with dry vaccine so no refrigeration is needed.