The winners of the 2016 Nobel Chemistry Prize (L-R) Jean-Pierre Sauvage, J Fraser Stoddart and Bernard L Feringa are displayed on a screen during a press conference to announce the winners of the 2016 Nobel Prize in Chemistry at the Royal Swedish Academy of Sciences in Stockholm on October 5, 2016. / AFP / JONATHAN NACKSTRAND (Photo credit should read JONATHAN NACKSTRAND/AFP/Getty Images)
