Graphene Oxide Modified Electrodes for Dopamine Sensing

Abstract

Dopamine (DA) is one of the most important catecholamine neurotransmitters that plays an important role in the central nervous, renal, hormonal, and cardiovascular systems. Since its discovery, tremendous effort has been made and various techniques have been developed for the DA detection. Recently, graphene-based materials have attracted a tremendous amount of attention due to their high sensitivity and rapid response towards effective detection of DA. This review focuses on current advances of graphene-based materials for DA detection based on recent articles published in the last five years.

Formation and Characterization of Copper Nanocube-Decorated Reduced Graphene Oxide Film

“…The composition of the rGO-CuNCs is determined by energy-dispersive spectroscopy (EDS) experiment, as is supplied in Figure 3(f) that confirms that the prepared film consists of CuNCs. It was reported by many researchers that basal planes of GO and rGO nanosheets consist of negatively charged epoxy and carboxyl groups [2,3,[9][10][11]14]. These functional groups can be used as anchors for the adsorption of positive metal ions (e.g., Cu + ) in a solution due to the electrostatic adsorption principle.…”

“…In recent years, graphene oxide (GO) and reduced graphene oxide (rGO) became a hot topic and opened an entirely new domain in the area of material science [1][2][3]. The opportunity to combine GO with inorganic nanoparticles, thereby forming graphene-nanoparticle hybrid structures, is currently of interest for applications in bioelectronics, energy production, biomedicine, and environmental remediation [2][3][4][5][6][7].…”

“…The opportunity to combine GO with inorganic nanoparticles, thereby forming graphene-nanoparticle hybrid structures, is currently of interest for applications in bioelectronics, energy production, biomedicine, and environmental remediation [2][3][4][5][6][7]. These graphene-nanoparticle hybrid structures exhibit additional advantageous and often synergistic properties that greatly augment their potential for bioapplications.…”

Cobalt Oxide Nanoparticles/Graphene/Ionic Liquid CrystalModified Carbon Paste Electrochemical Sensor for Ultra-sensitiveDetermination of a Narcotic Drug

“…19,21,22 Also, graphene has a set of oxygenated species at the edges of its sheets acting as specific surface functional groups. 23 Graphene and graphene based composites have found great impact in different applications like sensors, catalysis, electronics, energy storage and conversion, water purification, etc. 21,22,24 Furthermore, graphene based composites have been widely used as electrochemical sensors.…”

Nano-Formulation of Ethambutol with Multifunctional Graphene Oxide and Magnetic Nanoparticles Retains Its Anti-Tubercular Activity with Prospects of Improving Chemotherapeutic Efficacy

“…Recently, a variety of nanomaterials-based antimicrobials agents have been developed [ 1 , 7 , 8 , 9 ]. Graphene oxide (GO) is a promising material for biomedical applications, especially in drug delivery systems because of its two dimensional (2D) nanosize providing a large surface area with different functional groups, such as hydroxyl, carbonyl, epoxides, and unsaturated benzene rings [ 10 , 11 ]. These functional groups allow different drugs, hydrophilic and hydrophobic, to be loaded on GO.…”