Our initial quantitative measurements followed changes in the maximum efficiency of photosystem II, expressed as Fv / Fm [23]. (journals.plos.org)
Working at SLAC's Linac Coherent Light Source (LCLS), the world's most powerful x-ray laser, the researchers were able to take detailed «snapshots» of the four photon - step cycle for water oxidation in photosystem II, a large protein complex in green plants. (newscenter.lbl.gov)
By engineering an atomically precise film so that it can support chemical reactions without damaging sensitive semiconductors, the researchers managed to satisfy contradictory needs for artificial photosystems. (newscenter.lbl.gov)