Chitosan polymer matrix-derived nanocomposite (CuS/NSC) for non-enzymatic electrochemical glucose sensor

Research progress of electrode materials for non-enzymatic glucose electrochemical sensors

“…Their elemental or single oxides are not very effective in the catalytic oxidation of glucose, but they can be combined with those with high catalytic properties to improve the performance by utilizing the synergistic relationship between different metal elements. In addition, transition metal based nitride, 58 phosphide, 59 sulfide 28 and selenide 60 are also commonly used catalyst materials for non-enzymatic glucose oxidation. Table 5 summarizes the non-enzymatic glucose sensors based on other transition metals and their compounds in recent years and shows the key performance parameters in detail.…”

“…Various forms of Cu-based glucose sensors have been developed, such as Cu, 25 Cu 2 O, 26 CuO, 27 and CuS. 28 The oxidation peak range of Cu based materials is wider than that of many catalysts, about 0.3 to 0.5 V (relative to Ag/AgCl). However, the oxidation peak of Cu( ii ) contains a high background current, and it is difficult to distinguish when the intensity of the oxidation peak is weak.…”

Prism-like bimetallic (Ni–Co) alkaline carboxylate-based non-enzymatic sensor capable of exceptionally high catalytic activity towards glucose

“…The International Diabetes Federation reports that someone dies from diabetes-related health complications every 6 seconds. 1 Thus, the rapid and precise monitoring of physiological glucose levels is in great need for disease assessment and management. By comparison of the early sensing technologies, such as spectroscopy, fluorescence and chemiluminescence, the electrochemical sensors have received increasing attention due to their advantages of high sensitivity, fast response, good selectivity and easy fabrication.…”

Detection of Axitinib Using Multiwalled Carbon Nanotube-Fe2O3/Chitosan Nanocomposite-Based Electrochemical Sensor and Modeling with Density Functional Theory

“… 23 , 27 In addition, chitosan, as a natural polymer with high stability, biocompatibility, affordability, and ability to construct film matrixes, is widely preferred to be employed in combination with various nanomaterials. 27 , 28 Taken together, due to the unique electrical and optical properties of MWCNTs, Fe 2 O 3 NPs, and chitosan, a new electrochemical nanosensor platform (MWCNT/Fe 2 O 3 @chitosan NC) was fabricated based on the synergistic effect of MWCNTs, and Fe 2 O 3 NPs dispersed in chitosan NC. The developed MWCNTs/Fe 2 O 3 @chitosan NC/GCE sensor was successfully applied to determine AXI in tablet dosage form and human serum samples with good accuracy.…”

“…In this study, an electrochemical nanosensor platform on the GCE surface was designed by combining the conventional chemical approaches with the nanostructure-driven fabrication techniques and multiwalled carbon nanotubes (MWCNTs)/iron­(III) oxide nanoparticles (Fe 2 O 3 NPs)-chitosan nanocomposite (NC)/GCE sensor has been proposed for AXI determination. It has been well-accepted that MWCNTs are among the most preferred carbon-based nanomaterials for electrode modification due to their stability, excellent mechanical and conductive properties, low cost, and high surface area. ,− In addition, Fe 2 O 3 NPs can improve electron transfer kinetics, high surface area, biocompatibility, and nontoxic profile, and they are used to improve the catalytic performance of electrochemical systems. , In addition, chitosan, as a natural polymer with high stability, biocompatibility, affordability, and ability to construct film matrixes, is widely preferred to be employed in combination with various nanomaterials. , Taken together, due to the unique electrical and optical properties of MWCNTs, Fe 2 O 3 NPs, and chitosan, a new electrochemical nanosensor platform (MWCNT/Fe 2 O 3 @chitosan NC) was fabricated based on the synergistic effect of MWCNTs, and Fe 2 O 3 NPs dispersed in chitosan NC. The developed MWCNTs/Fe 2 O 3 @chitosan NC/GCE sensor was successfully applied to determine AXI in tablet dosage form and human serum samples with good accuracy.…”