Stability study in the performance of sensors and biosensors based on conductor polymers in strong acidic media

Developing and constructing the mathematical model (applying the linear stability theory and bifurcation analysis), the electrochemical behavior, observed during the work of the CP-based electrochemical sensors and biosensors in strongly acid solution, was investigated. The conditions for the steady...

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Autores:
Valentynovych Tkach, Volodymyr
Vasyl´ovych Nechyporuk, Vasyl´
Ivanonych Yagodynets´, Petro
Tipo de recurso:
Article of journal
Fecha de publicación:
2013
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/49922
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/49922
http://bdigital.unal.edu.co/43450/
http://bdigital.unal.edu.co/43450/2/
Palabra clave:
polímeros conductores
sensores y biosensores electroquímicos
potencial de hidrógeno
oscilaciones electroquímicas
estado estacionario estable
conducting polymers
electrochemical sensors and biosensors
hydrogen potential
electrochemical oscillations
stable steady-state
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:Developing and constructing the mathematical model (applying the linear stability theory and bifurcation analysis), the electrochemical behavior, observed during the work of the CP-based electrochemical sensors and biosensors in strongly acid solution, was investigated. The conditions for the steady-state stability and oscillatory and monotonic instabilities were derived for the work of the biosensor in potentiostatic mode. The results of the analysis for the case of strongly acid solution were compared to the previously obtained for the case of neutral and basic solution and in such way it's possible to make conclusions about the influence of pH on the functioning of sensors and biosensors.