Figure 2From: Charge transfer between photosynthetic proteins and hematite in bio-hybrid photoelectrodes for solar water splitting cells Photocurrent density before and after immobilization of αHisPC (a) and PC (b). Pristine hematite before (red bottom line) and after immobilization with melanin (green top line) of 0.2 mg ml−1 PC or αHisPC in the presence of 1 mM PMSF, for 3 h and measured in 1 M KOH (left panel) and in 0.05 M PBS (right panel).Back to article page