 Antimicrobial resistance is a major problem at present. If we can deliver medicines like antibiotics across the skin in high doses, we bypass the human gut, which is full of bacteria that have the potential to develop resistance if exposed to antibiotics. At present there is quite a challenge in administration, particularly of new medicines. Only things that are in solution can actually be absorbed. And as a result of that, we have a real difficulty in delivering the doses that we actually need. My group focussed on microarray patches. And these patches have on their surface hundreds or thousands of tiny needles. I quickly realised that by changing the material that micro needles were made from, we could open up micro needle delivery to a whole range of different substances. By doing so, we could potentially extend the existing lifetime of antibiotics, given scientists time to develop new drugs.