A novel ultrasensitive phosphate amperometric nanobiosensor based on the integration of pyruvate oxidase with highly ordered gold nanowires array

Poly(pyrrole‐co‐pyrrole‐2‐carboxylic acid)/Pyruvate Oxidase Based Biosensor for Phosphate: Determination of the Potential, and Application in Streams

“…Ogabiela et al. achieved phosphate detection at different potential ranges within 0 and −0.3 V, or within +0.2 and +0.6 V . In a flow injection phosphate biosensor based on pyruvate oxidase‐carbon nanotube film, phosphate detection was conducted by using continuous cyclic voltammetry.…”

“…A biosensor study based on an intimate integration of pyruvate oxidase and its cofactors, TPP and FAD,with a highly ordered gold nanowires array. An excellent storage stability was obtained (with repeated use over two weeks) due to the successful integration of enzyme and the co‐factors, via crosslinking with bovine serum albumin and glutaraldehyde, onto the nanowires . However, phosphate biosensor reports are still limited and there is still a lack of commercial phosphate biosensor in the market .…”

Early detection of Alzheimer's disease using a biosensor based on electrochemically-reduced graphene oxide and gold nanowires for the quantification of serum microRNA-137

“…60 Gold nanowires (AuNWs) have been used in electrochemical nanobiosensors to enhance their sensitivity via different approaches, which takes advantage of the wonderful characteristics of gold nanoparticles with high aspect ratios. [68][69][70] To date, to the best of our knowledge, the combination of AuNWs and ERGO has not been reported. Although, different forms of nanocomposites containing reduced graphene and gold nanoparticles have been used in electrochemical nanobiosensors.…”

Pyruvate Oxidase Biosensors Based on Glassy Carbon Electrodes Modified with Carbon Nanotubes and Poly(Neutral Red) Synthesized in Ethaline Deep Eutectic Solvent

“…A previous report by us [9] with PNR aq demonstrated a much higher limit of detection and lower sensitivity, hence, the PNR film deposited in ethaline exhibits superior characteristics. For phosphate detection [32–35], the same tendency was verified, in which the new biosensor demonstrated a wide linear range and one of the lowest limits of detection. Moreover, the devices designed to detect both phosphate and pyruvate are very limited.…”