Electrochemical Sensing of H[sub 2]O[sub 2] at Flavin Adenine Dinucleotide/Chitosan/CNT Nanocomposite Modified Electrode

S. Ashok Kumar, Szu-Ling Chen, Shen-Ming Chen
2010 Electrochemical and solid-state letters  
In this study, multiwalled carbon nanotubes ͑MWCNTs͒ were dispersed in chitosan ͑Chi͒ solution, and the dispersion was used to modify glassy carbon electrode ͑GCE͒ and indium tin oxide coated glass electrode. Further, MWCNTs/Chi thin-film modified electrodes were used for the immobilization of flavin adenine dinucleotide ͑FAD͒ from an aqueous solution. FAD could be immobilized very strongly onto the MWCNTs/Chi film, and the modified electrode was very stable in a wide pH range of 1-12. The
more » ... e of 1-12. The FAD-attached MWCNTs/Chi modified GCE ͑FAD/MWCNTs/Chi/GCE͒ was used to test its electrochemical and electrocatalytic properties. Moreover, the FAD/MWCNTs/Chi/GCE was used for the electrocatalytic reduction of hydrogen peroxide ͑H 2 O 2 ͒ at low potential in neutral buffer solution.
doi:10.1149/1.3463809 fatcat:axgjngojcfhhfetsld3lkgtnjq