100 years ago today saw Canadian scientist Fred Banting hoping to secure his place in medical history with the first ever injection of insulin into a human patient. But the result was disappointing. When he published the work, Banting said that ‘no clinical benefit was evidenced’. Yet only a year later, Banting had received the most prestigious accolade in science – the Nobel Prize – for this medical milestone. How come? What had changed? In a recent interview on BBC 5Live Naked Scientists podcast I explained why…