Functionalised single wall carbon nanotubes/polypyrrole composites for the preparation of amperometric glucose biosensors
A Callegari, S Cosnier, M Marcaccio… - Journal of Materials …, 2004 - pubs.rsc.org
Journal of Materials Chemistry, 2004•pubs.rsc.org
… A convenient and versatile strategy for the construction of a glucose amperometric biosensors
is herein described where the co-immobilization of glucose oxidase and a suitable redox
mediator, namely ferrocenyl-derivatised single wall NT (Fc-SWNT 1a in Scheme 1), is obtained
within a thin polypyrrole film adsorbed onto the glassy carbon electrode surface. A two-step
procedure was used: (1) the biomolecule was solubilized in an aqueous dispersion of both
the amphiphilic pyrrole derivative 2 (Scheme 1) and redox mediator 1a, and … Furthermore …
is herein described where the co-immobilization of glucose oxidase and a suitable redox
mediator, namely ferrocenyl-derivatised single wall NT (Fc-SWNT 1a in Scheme 1), is obtained
within a thin polypyrrole film adsorbed onto the glassy carbon electrode surface. A two-step
procedure was used: (1) the biomolecule was solubilized in an aqueous dispersion of both
the amphiphilic pyrrole derivative 2 (Scheme 1) and redox mediator 1a, and … Furthermore …
Ferrocenyl-functionalised SWNTs are coupled to glucose oxidase within an amphiphilic polypyrrole matrix for the amperometric catalytic detection of glucose.
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