Mathematical Modeling of Biosensors Based on an Array of Enzyme Microreactors

This paper presents a two-dimensional-in-space mathematical model ofbiosensors based on an array of enzyme microreactors immobilised on a single electrode.The modeling system acts under amperometric conditions. The microreactors were modeledby particles and by strips. The model is based on the diffu...

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Main Authors: Juozas Kulys, Feliksas Ivanauskas, Romas Baronas
Format: Article
Language:English
Published: MDPI AG 2006-04-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/6/4/453/
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author Juozas Kulys
Feliksas Ivanauskas
Romas Baronas
author_facet Juozas Kulys
Feliksas Ivanauskas
Romas Baronas
author_sort Juozas Kulys
collection DOAJ
description This paper presents a two-dimensional-in-space mathematical model ofbiosensors based on an array of enzyme microreactors immobilised on a single electrode.The modeling system acts under amperometric conditions. The microreactors were modeledby particles and by strips. The model is based on the diffusion equations containing a non-linear term related to the Michaelis-Menten kinetics of the enzymatic reaction. The modelinvolves three regions: an array of enzyme microreactors where enzyme reaction as well asmass transport by diffusion takes place, a diffusion limiting region where only the diffusiontakes place, and a convective region, where the analyte concentration is maintained constant.Using computer simulation, the influence of the geometry of the microreactors and of thediffusion region on the biosensor response was investigated. The digital simulation wascarried out using the finite difference technique.
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spelling doaj.art-3089d83567e0414693f49e48f15077522022-12-22T04:23:10ZengMDPI AGSensors1424-82202006-04-016445346510.3390/s6040453Mathematical Modeling of Biosensors Based on an Array of Enzyme MicroreactorsJuozas KulysFeliksas IvanauskasRomas BaronasThis paper presents a two-dimensional-in-space mathematical model ofbiosensors based on an array of enzyme microreactors immobilised on a single electrode.The modeling system acts under amperometric conditions. The microreactors were modeledby particles and by strips. The model is based on the diffusion equations containing a non-linear term related to the Michaelis-Menten kinetics of the enzymatic reaction. The modelinvolves three regions: an array of enzyme microreactors where enzyme reaction as well asmass transport by diffusion takes place, a diffusion limiting region where only the diffusiontakes place, and a convective region, where the analyte concentration is maintained constant.Using computer simulation, the influence of the geometry of the microreactors and of thediffusion region on the biosensor response was investigated. The digital simulation wascarried out using the finite difference technique.http://www.mdpi.com/1424-8220/6/4/453/Reaction-diffusionmodelingbiosensormicroreactor.
spellingShingle Juozas Kulys
Feliksas Ivanauskas
Romas Baronas
Mathematical Modeling of Biosensors Based on an Array of Enzyme Microreactors
Sensors
Reaction-diffusion
modeling
biosensor
microreactor.
title Mathematical Modeling of Biosensors Based on an Array of Enzyme Microreactors
title_full Mathematical Modeling of Biosensors Based on an Array of Enzyme Microreactors
title_fullStr Mathematical Modeling of Biosensors Based on an Array of Enzyme Microreactors
title_full_unstemmed Mathematical Modeling of Biosensors Based on an Array of Enzyme Microreactors
title_short Mathematical Modeling of Biosensors Based on an Array of Enzyme Microreactors
title_sort mathematical modeling of biosensors based on an array of enzyme microreactors
topic Reaction-diffusion
modeling
biosensor
microreactor.
url http://www.mdpi.com/1424-8220/6/4/453/
work_keys_str_mv AT juozaskulys mathematicalmodelingofbiosensorsbasedonanarrayofenzymemicroreactors
AT feliksasivanauskas mathematicalmodelingofbiosensorsbasedonanarrayofenzymemicroreactors
AT romasbaronas mathematicalmodelingofbiosensorsbasedonanarrayofenzymemicroreactors