Miniaturized and multi-purpose electrochemical sensing device based on thin Ni oxides

An innovative miniaturized electrochemical device based on Nickel sensing material is described. Thedevice contains three integrated microelectrodes with the working electrode made of Ni (7.5 nm in thick-ness). It has been proved to be very versatile in the detection of several redox active analytes such asglucose, aminoacids and amines. In particular, the results in the detection of glucose from human plasmaand saliva, of phenylalanine and glycine from urine and of organic compounds (ethanol, methanol, aceticacid, thioacetic acids, ethylenediammine) are presented and discussed. The findings here reported paythe way to future development of versatile PoC chemical sensors addressing easy-to-use and low-costanalyses.