A simple non-enzymatic hydrogen peroxide sensor using gold nanoparticles-graphene-chitosan modified electrode

Selective Growth of Co-electrodeposited Mn2O3-Au Spherical Composite Network Towards Enhanced Non-enzymatic Hydrogen Peroxide Sensing

“…Amperometry studies indicate that the Mn 2 O 3 -Au nanocomposite shows a linear response towards H 2 O 2 oxidation with a sensitivity of 39.24 mA/mM/cm 2 which is almost three orders higher than the pristine Mn 2 O 3 sample. A comparison of Mn 2 O 3 -Au sensing performance with clean Au surface [40], nanoporous Au [46], and Au nanoparticles [41] reveal a lower detection limit of our system. Further, comparison with HRP based enzymatic H 2 O 2 sensors in similar working range of concentration reveal that the sensing performance of our Mn 2 O 3 -Au system is comparable [47], in some cases better [42] than enzyme based H 2 O 2 sensors.…”

“…The response of Mn 2 O 3 -Au as an H 2 O 2 sensor was further evaluated by amperometric i-t technique performed at an applied potential of 0.25 V. The amperometry plot for Mn 2 O 3 -Au sample over the range of different H 2 O 2 concentrations is shown in Fig. 12 and the [40,41]. Furthermore, some of the pioneering works on enzymatic H 2 O 2 sensors based on HRP modified working electrodes have been reported by research groups of Lo Gorton [42,43], James Rusling [44,45] and Naifei Hu [49].…”

A nanoporous palladium-nickel alloy with high sensing performance towards hydrogen peroxide and glucose

“…Indicating that neutral solution was the optimized condition for the electrochemical oxidation of H 2 O 2 . The decrease of the current value on alkaline conditions might be related to the self-degradation of H 2 O 2 [14]. So pH around 7.0 was preferable in the H 2 O 2 detection.…”

“…Different analytical methods for the detection of H 2 O 2 and glucose have been reported, such as colorimetric assay, fluoroimmunoassay, and electrochemiluminescence [9][10][11]. Among these methods, electrochemical sensors based on electrooxidation of small molecules have gained remarkable attention owing to the advantages of convenient operation, fast response time, and low cost [12][13][14][15]. In recent years, advanced nanomaterials modified electrodes have attracted much attention as the platform for the H 2 [6].…”

Cu(II)‐Based MOF Immobilized on Multiwalled Carbon Nanotubes: Synthesis and Application for Nonenzymatic Detection of Hydrogen Peroxide with High Sensitivity

“…Nevertheless, the applicability of enzyme-biosensors is limited by the relatively high cost, short lifetime, poor reproducibility and the critical operating situation. Therefore, the development of non-enzymatic sensors has drawn more attention recently [38].…”