Effect of ionic strength on the behavior of amperometric enzyme electrodes mediated by redox hydrogels.

@article{Battaglini1999EffectOI,
  title={Effect of ionic strength on the behavior of amperometric enzyme electrodes mediated by redox hydrogels.},
  author={Fernando Battaglini and Ernesto J Calvo and Claudia Danilowicz and Alejandro Wolosiuk},
  journal={Analytical chemistry},
  year={1999},
  volume={71 5},
  pages={
          1062-7
        }
}
The electron-transfer behavior of electroactive hydrogels formed by cross-linking ferrocene poly(allylamine) (Fc-PAA) and glucose oxidase is investigated as a function of electrolyte ionic strength using several techniques. Cyclic voltammetry and electrochemical impedance spectroscopy show that the quantity cD(e)(1/2) increases with electrolyte concentration. Enhancement of enzyme catalysis for the oxidation of glucose mediated by Fc-PAA is also apparent at higher KNO(3) concentration. The… CONTINUE READING