Upon irradiation, electron transfer from a CdTe nanocrystal fuels hydrogen evolution with hydrogenase (a). The positively charged region on hydrogenase (b) interacts with ferredoxin (c) in vivo. In these experiments, the enzyme interacts with a negatively charged nanocrystal instead of ferredoxin (d). Reprinted with permission from Brown KA, Dayal S, Ai X, Rumbles G, King PW. (2010)
J. Am. Chem. Soc. 132, 9672-9680. Copyright (2010) American Chemical Society.