Ultrasensitive and highly stable nonenzymatic glucose sensor by a CuO/graphene-modified screen-printed carbon electrode integrated with flow-injection analysis

Screen-Printed Electrodes Modified with Metal Nanoparticles for Small Molecule Sensing

“…Acting as a catalyst for peroxide oxidation, metallic oxides can be classified depending on their nature. The first group corresponds to common oxides, such as CuO [65,79,80] and NiO [81], with MnO 2 [82] as the most representative one, and the second group correspond to oxides of platinum group metals, such as RuO 2 [83], RhO 2 [84] and PtO 2 , PdO, or IrO 2 [85]. The latter afford more expensive sensors but are more chemically stable.…”

CuO nanoparticles incorporated in hierarchical MFI zeolite as highly active electrocatalyst for non-enzymatic glucose sensing

“…Copper oxide (CuO) nanoparticles, as a well-known p-type semiconductor, has gained increasing attention due to its low production cost, high stability, good electrical conductivity and easy availability, and more importantly, CuO nanoparticles possess the excellent electrocatalytic activity to reduction of H 2 O 2 and oxidation of glucose as well as purine and amino acid [9,[11][12][13][14][15]. Except that, a series of CuO nanocomposites based on various substrates have been developed for non-enzymatic glucose sensors [16][17][18]. In recent years, some novel host materials, such as graphene, carbon nanotubes, ordered mesoporous silica-based materials, etc., are widely applied as hosts for electrocatalysis and further construction of biosensors owing to their large surface area and good biocompatibility [19][20][21][22].…”

Ultrasensitive non-enzymatic glucose sensors based on different copper oxide nanostructures by in-situ growth

“…Different CuO nanostructures for non-enzymatic glucose sensing have also been explored, such as CuO nanoparticles [21], CuO nanocubes [22], CuO nanoneedles [23], CuO nanowires [24], CuO nanoflowers [25], etc. Meanwhile, carbon-based materials (carbon nanotubes (CNTs), graphene) have been integrated to improve the sensitivity and conductivity through forming composite structures such as CuO/CNTs [26], CuO/carbon sphere [27] and CuO/graphene [28]. Nevertheless, the high-cost of graphene and CNTs along with the complicated procedures make it difficult for largescale fabrication, and the introduction of polymer binders may degrade the device performance.…”