Carbon nanotube/polysulfone composite screen-printed electrochemical enzyme biosensors

Samuel Sánchez; Martin Pumera; Enric Cabruja; Esteve Fàbregas

doi:10.1039/b609137g

Carbon nanotube/polysulfone composite screen-printed electrochemical enzyme biosensors

Samuel Sánchez, Martin Pumera, Enric Cabruja, Esteve Fàbregas

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

79 Citations (Scopus)

Abstract

The fabrication, evaluation and attractive performance of multiwall carbon nanotube(MWCNT)/polysulfone biocomposite membrane modified thick-film screen-printed electrochemical biosensors are reported. The fabricated carbon nanotube/polysulfone (CNT/PS) strips combine the attractive advantages of carbon nanotube materials, polysulfone matrix and disposable screen-printed electrodes. Such thick-film carbon nanotubes/polysulfone sensors have a well defined performance, are mechanically stable, and exhibit high electrochemical activity. Furthermore, biocompatibility of CNT/PS composite allows easy incorporation of biological functional moiety of horseradish peroxidase by phase inversion technique. The comparison of graphite with MWCNT as conductor material is described in this paper. The proposed H₂O₂ biosensor exhibited a linear range (applied potential, -0.2 V) from 0.02 to 0.5 mM and a K_M^app of 0.71 mM.

Original language	English
Pages (from-to)	142-147
Number of pages	6
Journal	Analyst
Volume	132
Issue number	2
DOIs	https://doi.org/10.1039/b609137g
Publication status	Published - 2007

All Science Journal Classification (ASJC) codes

Analytical Chemistry
Biochemistry
Environmental Chemistry
Spectroscopy
Electrochemistry

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title = "Carbon nanotube/polysulfone composite screen-printed electrochemical enzyme biosensors",

abstract = "The fabrication, evaluation and attractive performance of multiwall carbon nanotube(MWCNT)/polysulfone biocomposite membrane modified thick-film screen-printed electrochemical biosensors are reported. The fabricated carbon nanotube/polysulfone (CNT/PS) strips combine the attractive advantages of carbon nanotube materials, polysulfone matrix and disposable screen-printed electrodes. Such thick-film carbon nanotubes/polysulfone sensors have a well defined performance, are mechanically stable, and exhibit high electrochemical activity. Furthermore, biocompatibility of CNT/PS composite allows easy incorporation of biological functional moiety of horseradish peroxidase by phase inversion technique. The comparison of graphite with MWCNT as conductor material is described in this paper. The proposed H2O2 biosensor exhibited a linear range (applied potential, -0.2 V) from 0.02 to 0.5 mM and a KMapp of 0.71 mM.",

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AU - Sánchez, Samuel

AU - Pumera, Martin

AU - Cabruja, Enric

AU - Fàbregas, Esteve

PY - 2007

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AB - The fabrication, evaluation and attractive performance of multiwall carbon nanotube(MWCNT)/polysulfone biocomposite membrane modified thick-film screen-printed electrochemical biosensors are reported. The fabricated carbon nanotube/polysulfone (CNT/PS) strips combine the attractive advantages of carbon nanotube materials, polysulfone matrix and disposable screen-printed electrodes. Such thick-film carbon nanotubes/polysulfone sensors have a well defined performance, are mechanically stable, and exhibit high electrochemical activity. Furthermore, biocompatibility of CNT/PS composite allows easy incorporation of biological functional moiety of horseradish peroxidase by phase inversion technique. The comparison of graphite with MWCNT as conductor material is described in this paper. The proposed H2O2 biosensor exhibited a linear range (applied potential, -0.2 V) from 0.02 to 0.5 mM and a KMapp of 0.71 mM.

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Carbon nanotube/polysulfone composite screen-printed electrochemical enzyme biosensors

Abstract

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