Photochemical Control by Electrode-bound Photoisomerizable Units

Photochemical Control by Electrode-bound Photoisomerizable Units 

Photonic control over electroactivated bio-catalytic processes can also be achieved by the use of electrode surfaces that are modified by photoisomerizable units. These interfaces, whose state controls the ability of a substrate to interact with them, are known as command surfaces [382, 386-390]. In one example, a 

Cyt c (0.1 mM) at a mixed (29(a/b)) and pyridine monolayer-modified electrode in (a) the neutral spiropyran-state (29a) and (b) the positively charged merocyanine-state (29b), recorded at 50 mV s Inset switching behaviour of the Cyt c electrochemistry as a function of the state of the photoisomerizable group circles and squares represent the photoisomerizable units in the spiropyran and the merocyanine states, respectively (b) cyclic voltammetric response of Cyt c (0.1 mM) with COx (1 pM) at a mixed 

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