Construction and application of a nonenzymatic ascorbic acid sensor based on a NiO_1.0/polyaniline_3.0 hybrid

Abstract

The schematic diagram for the fabrication process of NiO/PANI.

Reducing the resistance for the use of electrochemical impedance spectroscopy analysis in materials chemistry

“…While some very interesting specialized reviews are reporting on practical applications of EIS for bioanalytical applications, 16 to understand structure/performance relationships of metal oxides, 15 and porous electrodes, 8 the main goal of this manuscript is to bridge the gap that currently exists through a clear explanation of key terms and analysis, which are commonly not dened/explained within research manuscripts. Here, we review EIS techniques and highlight numerous practical applications within materials science, such as for analysis of self-assembled monolayers (SAMs), 9,17,18 supercapacitors, [19][20][21][22] dye-sensitized solar cells (DSSCs), 23,24 conductive coatings, [25][26][27] sensors, 28,29 porous electrodes for different applications, [30][31][32] and other "smart" materials. 7,33,34 Very recent exciting literature examples that applied EIS to characterize, optimize or fully understand the performance of the material include analysis of on-skin or wearable sensors, 35,36 "green" microbial fuel cells, 37 and biosensors of SARS-CoV-2 antibodies.…”

Low Overpotential Amperometric Sensor Using Yb2O3.CuO@rGO Nanocomposite for Sensitive Detection of Ascorbic Acid in Real Samples

“…These sensors have several advantages, including their compact size, affordable price, lower power consumption, straightforward processing, and good stability [ 21 ]. Previously, researchers have investigated various types of metal oxides, such as CuO [ 22 , 23 ], MnO 2 [ 24 ], NiO [ 25 ], Fe 2 O 3 [ 26 ], and ZnO [ 27 ], as electron mediators for sensing applications. Additionally, doped metal oxides, such as NiO.CoO nanocomposites [ 28 ], CdO.SnO 2 .V 2 O 5 [ 29 ], CuO.In 2 O 3 [ 30 ], CuO.Nd 2 O 5 [ 31 ], CuO.NiO [ 32 ], and CuO.ZnO [ 33 ], have been studied as efficient sensing materials with higher sensitivity, small detection limits, wide linear dynamic ranges, and quick response times.…”

A Cd(ii)-organic framework as a highly sensitive and rapid fluorometric sensor for ascorbic acid in aqueous medium

“…1 AA is required for several metabolic processes of the body like protein and adrenaline preparation and iron absorption. 2 Since the human body can't produce AA, it is taken from the outer sources through different foods and medicines. 3,4 Nowadays, it is used as an important ingredient in animal feed and beverages and as a preservative reagent in the food, pharmaceutical and cosmetic industries.…”