Sensitive fiber microelectrode made of nickel hydroxide nanosheets embedded in highly-aligned carbon nanotube scaffold for nonenzymatic glucose determination

A sensitive fiber microelectrode for nonenzymatic glucose determination was fabricated by incorporating nickel hydroxide nanosheets into highly-aligned carbon nanotube scaffold. The as-prepared microelectrode featured a detection limit of 0.645 μM, high sensitivity of 12.2 mA cm−2 mM−1, wide linear-detection range from 20 μM to 10.5 mM, as well as an excellent anti-interference ability and repeatability.