Pyrene-adamantane-$\beta$-cyclodextrin: An efficient host-guest system for the biofunctionalization of SWCNT electrodes.

The design of nanostructured biol. architectures based on host-guest interactions between $\beta$-cyclodextrin and adamantane was investigated on SWCNT coatings using glucose oxidase (GOX) as biomol. model. $\beta$-Cyclodextrin tagged GOX was immobilized on adamantane functionalized carbon nanotubes, deposited on platinum electrodes. Different functionalization techniques to attach "pyrene adamantane" on nanotubes were studied and compared in terms of the performances of the subsequently constructed glucose biosensors. The best results were obtained by dipping the nanotube deposit into a pyrene-adamantane soln. followed by electropolymn. of the adsorbed pyrene monolayer. The constructed biosensor exhibited a good linear response toward glucose concns. between 2×10-7 M and 1.6×10-3 M. The max. c.d. and glucose sensitivity were 154.9 $μ$A cm-2 and 14.4 mA M-1 cm-2, resp. [on SciFinder(R)]

Références

Titre
Pyrene-adamantane-$\beta$-cyclodextrin: An efficient host-guest system for the biofunctionalization of SWCNT electrodes.
Type de publication
Article de revue
Année de publication
2011
Revue
Carbon N. Y.
Volume
49
Pagination
2571–2578
ISSN
0008-6223
Soumis le 12 avril 2018