Abstract
AbstractWe prepared and characterized electrocatalysts based on multiwalled carbon nanotubes (MWCNTs) coated with methylene green (MG). These electrocatalysts can regenerate nicotinamide adenine dinucleotide (NAD+), so they are potentially applicable in the field of bioelectronics. NADH oxidation occurs between 0.14±0.002 and 0.16±0.002 V vs. Ag/AgCl. The most efficient bioanode furnishes 88±7 µW cm−2 and 500 µA cm−2 and an open circuit voltage of 590±22 mV. In conclusion, we obtained a reliable and easy‐to‐prepare electrocatalyst that can regenerate NAD+ and may be applicable in biosensors and bioelectronic devices that use a wide range of NAD+‐dependent enzymes.
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