Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 19, Issue 28, Pages 9371-9375Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201301043
Keywords
electrochemistry; enzymes; immobilization; nanotubes; quinones
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Funding
- CMIRA mobility program of the Rhone-Alpes region
- ANR P2N, project GLUCOPAC
- ANR Investissements d'avenir - Nanobiotechnologies [10-IANN-0-02]
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An efficient way of immobilizing and wiring a large amount of laccase on non-covalently-functionalized multi-walled carbon nanotube (MWCNT) electrodes is reported. 1-(2-anthraquinonylaminomethyl)pyrene and 1-[bis(2-anthraquinonyl)aminomethyl]pyrene were synthesized and studied for their capability to non-covalently functionalize MWCNT electrodes and immobilize and orientate laccase on the nanostructured electrodes. This led to high-performance biocathodes for oxygen reduction by direct electron transfer with maximum current densities of (1 +/- 0.2)mAcm-2. The performance of the resulting bioelectrodes could be doubled simply by using the bis-anthraquinone compound. The bioelectrodes show excellent stability over weeks and can thus be envisioned in enzymatic biofuel cells.
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