Abstract
Using facile diazonium chemistry, sulfonate groups have been covalently attached to single wall carbon nanotubes. The resulting sulfonated tubes form a stable aqueous dispersion in the presence of pyrrole monomer. Subsequent electropolymerisation results in a conductive, electroactive polypyrrole doped with sulfonated tubes being formed at unusually low potentials. The potential of this material as a host matrix for biomolecules has been demonstrated by entrapping horse-radish peroxidase directly in the polypyrrole during composite formation.
MeSH terms
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Adsorption
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Biosensing Techniques / methods*
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Crystallization / methods
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Electric Conductivity
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Electrochemistry / methods
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Electroplating / methods*
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Horseradish Peroxidase / chemistry*
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Macromolecular Substances / chemistry
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Materials Testing
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Molecular Conformation
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Nanotechnology / methods
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Nanotubes, Carbon / chemistry*
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Nanotubes, Carbon / ultrastructure*
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Particle Size
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Polymers / chemistry*
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Pyrroles / chemistry*
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Sulfonic Acids / chemistry*
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Surface Properties
Substances
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Macromolecular Substances
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Nanotubes, Carbon
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Polymers
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Pyrroles
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Sulfonic Acids
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polypyrrole
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Horseradish Peroxidase