Viologen derivative containing mediator

Viologen Derivative Containing Pofysiloxane as an Electron-Transfer Mediator in Amperometric Glucose Sensors... [Pg.169]

Amperometric glucose electrodes based on glucose oxidase, chemical or electrochemical steps, 124-125 Amperometric glucose sensors glucose oxidase and nonphysiological redox mediators, electron-transfer mechanism, 169-170 poly(etheramine-quinone)s as electron transfer relay systems, 124-135 viologen derivative containing polysiloxane as electron-transfer mediator, 169-178... [Pg.318]

For the asymmetric reduction of ketone and aldehyde derivates, two electrochemical reduction systems using ADH as catalyst were examined (Fig. 22) [108]. In system A, the reduced coenzymes are regenerated using either FNR for NADPH or DP for NADH. Methyl viologen serves as electron mediator between the electrode and FNR/DP. System B contains ADH as sole enzyme, which catalyzes both reduction of substrates and regeneration of cofactors. Phenylethanol is oxidized by ADH accompanied by reduction of NADP+ to NADPH and its oxidation product acetophenone is reduced electrochemically at a glassy carbon cathode. [Pg.216]