3D-nanostructured scaffold electrodes based on single-walled carbon nanotubes and nanodiamonds for high performance biosensors.

We report a novel strategy for controlled nanostructuring of electrodes surfaces using single-walled nanotubes and nanodiamonds in order to form highly porous structures for biosensors applications. These nanostructures were obtained by subsequent deposition of nanotubes and nanodiamonds followed by functionalization of this assembly with pyrenenitrilotriacteic acid (NTA) via dip coating. The electropolymerizaton of the pyrene deriv. leads to a reinforcement of the structure and allows simultaneously the immobilization of biotin labeled bioreceptor units via coordinative affinity interactions. By using biotin modified glucose oxidase (B-GOx) as model bioreceptor, we could obtain impressive max. current densities and sensitivities up to 465 $μ$A cm-2 and 85.78 mA M-1 cm-2, resp. [on SciFinder(R)]

Références

Titre
3D-nanostructured scaffold electrodes based on single-walled carbon nanotubes and nanodiamonds for high performance biosensors.
Type de publication
Article de revue
Année de publication
2013
Revue
Carbon N. Y.
Volume
61
Pagination
349–356
ISSN
0008-6223
Soumis le 12 avril 2018