A) The Chronoamperometry (CA) of a thylakoid membrane modified gold electrode (GE) in 10mM pH 7.4 PBS at an applied potential;0V (vs Ag/AgCl) B) The CA of P(DTP-Ph-NH2)/ membrane modified gold electrode in 10mM pH 7.4 PBSat an applied potential; 0V (vs Ag/AgCl).