LAUSR

Abstract For the efficient electrochemical glucose oxidation on the electrode modified with redox hydrogel involving Os-tethered polymer and flavin adenine dinucleotide-dependent glucose dehydrogenase (FADGDH), the effect of pore size of MgO-templated carbon (MgOC) as an electrode material was studied. The MgOC was modified on glassy carbon electrode by ink-drop-casting technique. The MgOC pore size clearly affected on the current generation efficiency for glucose oxidation. As the pore size increased above 100 nm, a glucose oxidation current density of more than 100 mA cm−2 was achieved with 1000 μg cm−2 of hydrogel loading. Both high specific surface area and macrostructure of MgOC, which does not impede mass transport even if hydrogel loading is increased, are important factors in designing the porous structure of the MgOC layer via the ink-drop-casting process during electrode fabrication.