Abstract: Abstract In this work, we report the construction of a direct electron transfer (DET) biosensor based on NAD-dependent formaldehyde dehydrogenase from Pseudomonas sp. (FDH) immobilized on the gold nanoparticle-modified gold electrode. To the best of our knowledge, a DET for FDH was achieved for the first time – the oxidation of formaldehyde started at a low electrode potential of −190 mV vs. Ag/AgCl and reached a maximum current density of 1100 nA cm−2 at 200 mV vs. Ag/AgCl. Also, the designed electrode was insensitive to substrate inhibi...
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Topics: 
Chromatography
Nuclear chemistry