General Kinetic Model for Amperometric Sensors Based on Prussian Blue Mediator and Its Analogs: Application to Cysteine Detection | Zendy

Chen LinChi | Zendy; Tseng KueiSheng | Zendy; Ho KuoChuan | Zendy

Premium

General Kinetic Model for Amperometric Sensors Based on Prussian Blue Mediator and Its Analogs: Application to Cysteine Detection

Author(s) -

Chen LinChi,

Tseng KueiSheng,

Ho KuoChuan

Publication year - 2006

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.200603530

Subject(s) - prussian blue , analyte , amperometry , biosensor , chemistry , diffusion , ferrocyanide , reaction rate constant , dimensionless quantity , electrode , electron transfer , analytical chemistry (journal) , kinetics , inorganic chemistry , chromatography , electrochemistry , thermodynamics , physics , quantum mechanics , biochemistry

Prussian blue (PB) and its analogs, such as indium hexacyanoferrate (InHCF), can serve as artificial oxidases and mediate electron transfer from electrodes to analytes rapidly. Hence they are playing a growing role in the biosensor field. To gain further insight into the PB‐based amperometric sensors, a general kinetic model for the prediction of sensing current has been developed in this work. The model takes both effects of analyte diffusion and electrocatalytic reaction into consideration and defines a dimensionless system constant, θ °, in order to compare the surface catalytic rate with the analyte diffusion rate. Consequently, the mathematical expression of sensing current, I , is derived as follows:

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research