Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 28, Issue 3, Pages 265-270Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200600654
Keywords
chitosan; ferrocene-branched; glucose oxidase; redox polymers; reagentless biosensor
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Ferrocene-bra:ached chitosan derivatives (CHIT-Fc) are synthesized by reductive N-alkylation of chitosan with ferrocenecarboxaldehyde. The structures of the products are determined by H-1 NAAR and FT-IR spectra. CHIT-Fc is used as a functionalized matrix to immobilize GOD on glassy carbon electrodes. Ferrocenyls in CHIT-Fc exhibit an excellent redox activity and establish efficient electrical communication between GOD and the electrodes for the oxidation of glucose. The development of a reagentless glucose biosensor is described.
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