Glassy carbon electrode modified by new Copper(I) oxide nanocomposite for glucose detection: An electroanalysis study

Abstract

The Glucose amount of human blood is very vital because in higher levels than allowed value the corporal biological system was hampered. Therefore, in this study, the Cu 2 O was deposited on the reduced Graphene oxide (RGO) by polydopamin (PDA) as linker. The new RGO-PDA-Cu 2 O nanocomposite was deposited on the glassy carbon electrode (GCE) surface after its characterization by UV-Visible, fourier transform infrared (FT-IR), X-ray diffraction (XRD), Energy-dispersive X-ray (EDX), transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM) techniques. The electroanalysis of the new electrode was investigated by the cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS) methods. The obtained detection limit of glucose (Glu) showed that the deposited GCE by RGO-PDA-Cu 2 O nanocomposite has a high potential for its diagnosis. In addition, this electrode was applied to the Glu detection as biosensor in real samples in order to utilize in commercial applications.

Simultaneous determination of hydroquinone and catechol by a reduced graphene oxide–polydopamine–carboxylated multi-walled carbon nanotube nanocomposite

“…This characteristic peak decreases signicantly aer the reaction with dopamine and the wide diffraction peak at 25 due to PDA demonstrates the synthesis of RGO-PDA. 40 The reection peaks of RGO-PDA-cMWCNT at around 25 and 44 increased compared with those of RGO-PDA, which along with the new peaks at 52 demonstrates the formation of the composite. The as-prepared nanocomposite was also investigated via TGA (Fig.…”

Nonenzymatic Saliva-Range Glucose Sensing Using Electrodeposited Cuprous Oxide Nanocubes on a Graphene Strip

“…Furthermore, there are also a large variety of substrates readily available for electrodeposition, including silicon, 19 indium tin oxide, 20 and glassy carbon electrode. 21 In addition to these hard substrates, flexible soft substrates are becoming more accessible for depositing copper and copper oxide nanoparticles. Among these, two-dimensional materials such as graphene have been recently used in many areas, including electronics, photonics, and biomedical applications.…”

“…Among the many approaches to fabricate copper and copper oxide nanoparticles, such as nanosphere lithography, hydrothermal synthesis, ion implantation, and sonochemical reduction, electrochemical deposition offers a quick, low-cost, and reproducible fabrication method for these nanoparticles. Furthermore, there are also a large variety of substrates readily available for electrodeposition, including silicon, indium tin oxide, and glassy carbon electrode . In addition to these hard substrates, flexible soft substrates are becoming more accessible for depositing copper and copper oxide nanoparticles.…”

Development of SnO2@rGO Hybrid Nanocomposites through Complexometric Approach for Multi-Dimensional Electrochemical Application

“…Nowadays, the preparation of porous nanostructured materials with controlled size, composition, and shape are of great importance in achieving different physico-chemical properties. [1][2][3] Despite of wide bandgap, metal oxides behave like efficient electro-active material due to their intriguing properties (like high thermal stability, natural abundance, easy availability, non-toxicity) thus, possess widespread potential applications 4,5 as an electrode material for light-emitting diodes, transparent electromagnetic shielding material, photocatalyst, sensors, coating for the passivation of surface against the corrosion etc. 6,7 The transition metal oxides with the large surface area are considered to be advantageous to facilitating interfacial electrochemical reactions.…”