Electrocatalytic effect towards NADH induced by HiPco single-walled carbon nanotubes covalently functionalized by ferrocene derivatives
Abstract
The present work reports the covalent functionalization of single-walled carbon
nanotubes (SWCNTs) by ferrocene derivatives with polyethyleneglycol linkers. A very clean
initial sample was chosen to avoid any residual catalyst and carbon impurities. Functionalized
SWCNTs (f-CNTs) are deposited on the surface of a glassy carbon electrode (GCE) and this
modified electrode is used for oxidizing the cofactor NADH (dihydronicotinamide adenine
dinucleotide) in the presence of diaphorase. A clear electrocatalytic effect is evidenced, which
can only be attributed to the f-CNTs.