Edson Nossol

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Verified

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• PhD
• Professor at Federal University of Uberlândia

In Brazil, grocery stores and local markets commonly sell handmade cigarettes crafted from cornhusk and treated tobacco. Once a regional tradition, these artisanal cigarettes are now the second most consumed type in the country. Tobacco products contain nicotine (NIC), a highly addictive substance linked to cardiovascular diseases. This study prese...

Photodynamic therapy (PDT) involves a reaction between photosensitizers (PS) and oxygen (O2) to generate cytotoxic reactive oxygen species (ROS), which effectively eliminate undesired cells. Compared to conventional treatments like surgery, radiation, and chemotherapy, PDT offers several advantages, including minimal toxicity to healthy tissues and...

Electroanalytical techniques offer several advantages: low cost, portability, and high analysis frequency. These benefits can be further enhanced by replacing standard electrodes (boron-doped diamond, glassy carbon, gold, platinum, etc.) with abundant, low-cost carbon materials. Pyrolytic Graphite Sheet (GS) electrodes have recently emerged as a re...

Babassu (Atallea sp.), a native palm tree from South America’s Amazon produces bio-oil and biochar with significant potential for industrial applications. Babassu oil as a bio-based plasticizer is reported here for the first time to replace petrochemical alternatives in the production of conductive filaments for additive manufacturing purposes. The...

The development of a tailored filament is reported composed of reduced graphene oxide (rGO) and carbon black (CB) in a polylactic acid (PLA) matrix and its use in the production of electrochemical sensors. The electrodes containing rGO showed superior performance when compared with those prepared in the absence of this material. Physicochemical and...

Electrochemical water splitting is a promising approach in the development of renewable energy technologies, providing an alternative to fossil fuels. It has attracted considerable attention in recent years. The benchmark materials used in water splitting are precious metals that are expensive and scarce. Therefore, this work proposes a strategic e...

Developing new sensors presenting low-cost, portability, and disposability features is of paramount in the electrochemical field. Thus, this work proposes the fabrication of lab-made composite electrodes using acrylonitrile butadiene styrene, graphite, and aluminum oxide. In this investigation, the amount of aluminum oxide (0 to 12.25 w/w) was care...

Monitoring nitrate in aquatic systems is of fundamental importance since its presence at high levels can result in adverse effects on human health. Thus, in this work, manufactured carbon black (CB)/polylactic acid (PLA)-based 3D-printed electrochemical sensors modified with electrodeposited silver particles (AgPs) for nitrate analysis in real wate...

Fenuron (FEN) is a herbicide that acts as a weed growing inhibitor in crops. Because of its persistence and good solubility in water, its presence in water bodies is emerging as a concern for aquatic species. Herein, we propose a simple development of an electrochemically reduced graphene oxide (rGO) sensor for the monitoring of FEN in environmenta...

A novel composite material based on acrylonitrile‐butadiene‐styrene (ABS) and carbon black (CB) was proposed here. Different ratios between CB and ABS (40 : 60–60 : 40 %, w/w) were studied to obtain a substrate with improved electrochemical properties. These materials were characterized by techniques such as cyclic voltammetry (CV), electrochemical...

Fenuron (FEN) is a herbicide that acts as a weed growing inhibitor in crops. Due to its persistence and good solubility in water, its presence in water bodies is emerging as a concern for aquatic species. Herein, we propose a simple development of an electrochemically reduced graphene oxide (rGO) sensor for the monitoring of FEN in water samples. T...

Graphite sheet (GS) electrodes are flexible and versatile substrates for sensing electrochemical; however, their use has been limited to incorporate (bio)chemical modifiers. Herein, we demonstrated that a cold (low temperature) CO2 plasma treatment of GS electrodes provides a substantial improvement of the electrochemical activity of these electrod...

3,4-methylenedioxymethamphetamine (MDMA) is a drug of abuse, known as ecstasy, and it is among the most consumed drugs worldwide. The presence of MDMA and new psychoactive substances has been widely reported in seized forensic samples. The development of an elective and sensitive screening method for MDMA detection is very important in the current...

A rapid and simple method for the amperometric determination of glucose using a nanocomposite film of nickel oxyhydroxide and multi-walled carbon nanotube (MWCNTs) was evaluated. The NiHCF)/MWCNT electrode film was fabricated using the liquid–liquid interface method, and it was used as a precursor for the electrochemical synthesis of nickel oxy-hyd...

In this work, an electrochemical method was developed for rapid and sensitive detection of hydroxychloroquine (HCQ), an ineffective candidate drug for COVID-19 treatment however widely consumed during the pandemic, in aqueous samples using a multi-walled carbon nanotubes (MWCNT) film produced through the interfacial method on the indium tin oxide e...

In this work, silver nanoparticles (AgNPs) obtained from photographic waste were synthesized and electrodeposited via cyclic voltammetry using epoxy-graphite composite as an electrochemical substrate. Both electrodes, unmodified (Epoxy/C) and modified (Epoxy/C/AgNPs), were characterized electrochemically by electrochemical impedance spectroscopy (E...

Metal hexacyanoferrates (HCF), which are produced by hydrothermal synthesis, have received increasing attention for different applications due to their unique physicochemical properties, such as three-dimensional framework with large open sites and metal sites with different oxidation states. The hydrothermal method is a simple and established synt...

Transition metal oxides have attracted growing interest for application in energy storage and conversion technologies. In special, spinel-based materials, such as ZnCo2O4, exhibit structures suitable for performing as multifunctional electrodes in energy devices. In fact, great efforts have been dedicated to the design of micro- and nanomaterials b...

A laser-induced graphene (LIG) surface modified with Prussian blue (iron hexacyanoferrate) is demonstrated as a novel electrochemical sensing platform for the sensitive and selective detection of hydrogen peroxide. Electrochemical Prussian blue (PB) modification on porous graphene films engraved by infrared laser over flexible polyimide was accompl...

This study presents the use of dry bean pods as a solid phase for fluorescein removal from water. The non-pretreated solid phase did not display any sorption properties for the chosen dye. However, interesting sorption properties were observed following a chemical derivative treatment with nitric acid. The study was carried out using both batch and...

Conductive 3D-printed platforms have been recognized an emerging class of materials with great potential to electrochemistry. However, such 3D-printed electrodes require a surface treatment to remove excess of polymer that hinders the electron transfer. We report a fast (2-min) and chemical-free protocol for the surface treatment of 3D-printed cond...

Spinel MCo2O4 (M = Ni, Fe, Mn, Cu and Zn) demonstrates excellent physicochemical properties due to combined effects of M2+ and Co2+ cations. Their inimitable optical, electronic, and mechanical properties open up windows for a broad range of promising applications. The development of novel spinels has opened virtually infinite possibilities for the...

In this review, electrocatalysts for HER/OER/ORR and energy storage electrode materials based on MnCo2O4 were reviewed considering their key multifunctional role in the way to a more sustainable society.

This work demonstrates that Al2O3 microparticles immobilized on a glassy‑carbon electrode (GCE) anticipates the electrochemical oxidation of naproxen in 150 mV and increases its oxidation current, resulting in a highly sensitive sensor. Considering their non-conducting nature, we suggest that Al2O3 microparticles act as adsorption sites that alter...

The application of graphene and its derivatives, graphene oxide and reduced graphene oxide, has proportioned an increase in the analytical parameters of sensors, especially regarding the sensibility, selectivity, and catalytic parameters. The performance of the sensor is directly influenced by the synthesis method, which will define the purity, num...

Reduced graphene oxide/ruthenium oxide hexacyanoferrate (rGO/RuOHCF) modified electrode showed synergic activity between the materials attested by the increase of electrochemical current and stability. The preparation of the nanocomposite was made by a simple two-step electrochemical approach. The material structure was characterized by spectroscop...

The energy requirement of the modern society increases every day. The depletion of the reserves of fossil fuel associated with the deleterious effects of CO2 in the atmosphere are forcing all the world to search for alternative ways of generation and storing energy. Many scientists around the world are pursuing different ways to produce and store e...

Zinc hexacyanoferrate (ZnHCF) is a Prussian Blue analog and can be intercalated by both monovalent and divalent ions. ZnHCF/multi-walled carbon nanotube (MWCNT) film could be used as a cathode for zinc ions battery. Carbon nanotubes improved significantly the electrochemical performance of the electrode. It is described the preparation of ZnHCF/MWC...

Here we describe a simple and rapid voltammetric fabrication of a novel nanocomposite modified glassy carbon electrode (GCE) based on reduced graphene oxide/ruthenium oxide hexacyanoferrate (rGO/RuOHCF). The performance of the electrode was tested for ranitidine (RTD) electrocatalytic oxidation. Characterization techniques confirmed an efficient el...

Voltammetric techniques have been widely applied to determine the food antioxidant capacity/activity using different electrochemical parameters (peak current, peak potential, charge) and by calculating the electrochemical index (EI) using glassy-carbon electrodes (GCE). A crucial step in this analysis involves electrode cleaning that typically invo...

In this study we propose an in situ low-cost electrochemical treatment by cyclic voltammetry (CV) for graphene oxide (GO) synthesis on the surface of graphite/ABS composite electrodes. Higher efficiencies were achieved while CV treatments were carried out in alkaline (KOH) background electrolyte, applying an elevated number of successive cycles (10...

The present work reports the one-step synthesis of reduced graphene oxide (rGO)–TiO2 nanocomposites using a microwave-assisted hydrothermal method. The well-dispersed TiO2 nanoparticles on rGO sheets were obtained without a reducing agent. X-ray diffraction, Raman and infrared spectroscopies indicated the reduction of graphene oxide (GO) under micr...

This work proposes an entirely chemical synthesis of reduced graphene oxide, carbon nanotubes, and Prussian blue transparent self-assembly film through the interfacial method on the ITO substrate. We achieve morphological and particle size control of the Prussian blue nanoparticles by a slow-release mechanism in the reaction medium using sodium cit...

This work presents new insights on the electrocatalytic reduction of 2,4,6-trinitrotoluene (TNT) on carbon nanotubes (CNTs)-modified electrodes (multi-walled carbon nanotubes and double-walled carbon nanotubes). Cyclic voltammetry showed at least 5-fold current increase in the electrochemical reduction of TNT on GCE modified with pristine (“as rece...

This work involves the study of scan rate (10 and 100 mV s ⁻¹ )on electrosynthesis of multi-walled carbon nanotubes/Prussian blue (MWCNTs/PB)thin films using cyclic voltammetry in K 3 [Fe(CN) 6 ]medium. A heterogeneous reaction between the electrolyte and iron species present in the MWCNT led to the formation of PB in the MWCNT. It was observed tha...

In2O3 and La3+-doped In2O3 nanostructures were synthesized through a facile and fast chemical route based on the microwave-assisted hydrothermal method combined with rapid thermal treatment in a microwave oven. The presence of the La3+ doping process modifies the size and morphology of the In2O3 nanostructures and also stabilizes the rhombohedral (...

This work presents the low-potential electrochemical reduction of 2,4,6-trinitrotoluene (TNT) by catalytic action of alumina abrasively supported on glassy-carbon electrode (GCE). The three reduction peaks were shifted to less negative potentials with improved peak-resolution, combined with increase in current and analytical sensitivity. Adsorption...

Flexible pyrolytic graphite sheets or graphite paper (GP) are a promising source of disposable (low-cost) electrochemical sensors. This work demonstrates the improvement in the electrochemical performance of graphite paper either after a simple electrochemical activation in acid media using cyclic voltammetry or after cold reactive plasma treatment...

Fused deposition modelling 3D printing of a flexible, conductive, disposable and biodegradable platform using graphene-doped polylactic acid (G-PLA) was demonstrated as an integrated device for sampling and detection of explosives. As a proof-of-concept, traces of 2,4,6-Trinitrotoluene (TNT) impregnated on different surfaces were abrasively sampled...

Numerous applications are dependent on the preparation of transparent thin films, including electrochromic windows, touch screens, and solar cells; however, transparent batteries, an essential component in fully integrated transparent devices, have not yet been properly explored in the literature. Here, we report the preparation of a transparent rG...

Double-walled carbon nanotubes (DWCNTs) of different length were submitted to acid functionalization and investigated as chemical modifiers on glassy-carbon electrode (GCE) for the sensing of dopamine and catechol. Acid functionalization introduced oxygenated groups and defects on the structure of DWCNTs, as detected by infrared, Raman and X-ray ph...

Metal nanoparticles (NPs) are an important class of materials for electrocatalysis. Synthesis of metal NPs with uniform particle size below 10 nm without a capping agent is challenging due to the tendency of particle aggregation to minimize surface energy. Here we demonstrate that pyrolysis of a metal‐TCNQ (TCNQ•− = tetracyanoquinodimethane radical...

This work presents the development and characterization of a new chemically modified electrode exploiting recordable Au-rewritable compact discs (AuCDs) as substrate for drop casting of a chemically-reduced graphene-oxide slurry focusing on simple and low-cost electrochemical sensors. Increase in electrochemical responses in cyclic voltammetric and...

Flexible graphite sheets or graphite paper are conductive substrates produced in large scale for use in a wide range of applications, such as in telecommunications, lighting, computer and peripherals, power conversion, and heat generating semiconductors (low-cost material). In this paper we show, for the first time, that commercially available grap...

Hexagonal CeO2 and Eu-doped CeO2 nanoparticles were obtained using a facile microwave-hydrothermal method under mild conditions and their application towards manganese redox flow battery component were studied. The structural properties were studied by X-ray diffraction and indicate that samples present a fluorite structure. Raman spectroscopy show...

This work presents potential applications of low-cost fused deposition modeling 3D-printers to fabricate multiuse 3D-printed electrochemical cells for flow or batch measurements as well as the 3D-printing of electrochemical sensing platforms. Electrochemical cells and sensors were printed with acrylonitrile butadiene styrene (ABS) and conductive gr...

This work presents the highly-sensitive detection of 2,4,6-trinitrotoluene (TNT) on reduced graphene oxide/multi-walled carbon nanotube (rGO/MWCNT) nanocomposite sensor. The formation of a thin film of this nanocomposite occurred at the cyclohexane/water immiscible interface of a mixture of MWCNT and rGO in the biphasic solution. The film was trans...

This paper presents a new route to produce carbon nanotube/reduced graphene oxide (CNT/rGO) nanocomposites using the interfacial method to produce high-performance electroanalytical sensing. The nanocomposite thin-film is formed at the cyclohexane/water immiscible interface after stirring of a mixture of CNT and rGO in the biphasic solution and can...

Electrocatalytic oxidation of catechol (CT), dopamine (DP) and tert-butylhydroquinone (TBHQ) is demonstrated on glassy-carbon electrode (GCE) surfaces modified with alumina nanoparticles of different structures and morphologies. Higher electrochemical activity for the oxidation of CT, DP and TBHQ (peak-to-peak separation reduced from 500 to 50 mV i...

The electrochemistry of hydroquinone (HQ), catechol (CT), and dopamine (DP) on a glassy-carbon electrode (GCE) modified with chemically (CRGO) and electrochemically reduced graphene oxide (ERGO) was investigated and compared for the development of amperometric and voltammetric sensors. Cyclic voltammetric measurements showed higher current on the C...

This communication shows the improved performance of electrochemically-reduced graphene oxide (ERGO) modified electrodes for the square-wave voltammetric detection of cocaine (COC) and its main adulterants paracetamol (PAR), caffeine (CAF) and levamisole (LEV). The four compounds can be identified in a single voltammetric scan on the ERGO-modified...

In this study it was investigated the application of different potentials range and distinct light sources in the formation of Prussian blue (PB) on single walled carbon nanotubes (SWCNT) thin films. The carbonaceous films were deposited through liquid-liquid interface method, with posterior voltammetric cyclic technique been employed for PB deposi...

Reduced graphene oxide-zinc oxide (rGO-ZnO) nanocomposites were successfully synthesized using a facile microwave-hydrothermal method under mild conditions, and their electrocatalytic properties towards O2 evolution were investigated. The microwave radiation played an important role in obtainment of well dispersed ZnO nanoparticles directly on redu...

This work demonstrates that the electrochemistry of different molecules of pharmaceutical interest, including omeprazole, ciprofloxacin, dopamine, catechol, hydroquinone, and the antioxidants tert-butylhydroquine, gallic acid, propyl gallate, and pyrogallol, is affected by the functionalization of multi-walled carbon nanotubes (MWCNTs). Voltammetri...

Many studies have reported significant improvements in the photocatalytic degradation capacity of TiO2 immobilized in carbonaceous materials, mainly due to a well-characterized synergistic effect. The photocatalytic degradation of the estrogens 17β-estradiol and 17α-ethynylestradiol was evaluated using 1 mg L-1 aqueous solutions, employing a nanoco...

In this work the sol-gel method was used to synthesize a nanocomposite containing TiO2 and graphene oxide (GO). The photocatalytic activity of the TiO2/GO nanocomposite was evaluated regarding the degradation of a reactive dye (reactive black 5) in aqueous solution using processes assisted by UV-A radiation. Under these conditions the nanocomposite...

The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter × length: 100–170 nm × 5–9 μm and 6–9 nm × 5 μm, corr...

Thin films of either unpurified single-walled carbon nanotubes (SWCNT) or iron-filled multi-walled carbon nanotubes (MWCNT) were deposited through the liquid-liquid interfacial route over plastic substrates, yielding transparent, flexible and ITO-free electrodes. The iron species presented in both electrodes (inside of the MWCNT cavities or outside...

Abstract The electrochemical activity of functionalized multi-walled carbon nanotubes (MWCNTs) of different sizes (D × L: 100-170 nm × 5-9 μm and 6-9 nm × 5 μm, corresponding to LD- and SD-MWCNTs, respectively) towards the electro-oxidation of hydroquinone (HQ), tert-butylhydroquinone (TBHQ), catechol (CT), and dopamine (DP) was investigated. The e...

Mass loadings and mechanistic insights into the stepwise formation of Prussian blue (PB) in a carbon nanotube nanocomposite electrode,formed by an in situ electrochemical reaction between iron species filling the carbon nanotubes cavities and ferricyanide ions in solution, have been probed by electrochemical quartz crystal microbalance (EQCM), elec...

A simple method has been developed to synthesize reduced graphene oxide (rGO)–AgTCNQ and rGO–copper–TCNQ nanocomposite films (TCNQ = 7,7,8,8-tetracyanoquinodimethane) from electrodeposited rGO–Ag and rGO–Cu films. The method is based on voltammetric co-reduction of a dispersion containing graphene oxide and a silver or copper metal cation precursor...

The use of carbon nanotube/Prussian blue nanocomposite film as a new electrode material for the environmental treatment of water samples is reported. The application of photochemical, electrochemical and photoelectrochemical-based Fenton processes were investigated for methyl orange dye degradation. The effect of the operating parameters, such as h...

Carbon nanotubes/Prussian blue (CNT/PB) films were prepared and tested as electrodes for electrochemical devices. The thicknesses (and transmittances) of the different films were controlled through the amount of both CNTs and PB. The electrochromic behavior of the films was compared to a PB film electro-synthesized by the classical route, showing i...

The preparation of a homogeneous, transparent and electroactive film of a carbon nanotube/Prussian blue nanocomposite is described for the first time. Transparent films of iron- and iron oxide-filled multi-walled carbon nanotubes (CNTs) were prepared on top of ITO electrodes from NMP dispersions of CNTs. Prussian blue (PB) was electrosynthesized as...

The utilization of iron-based species (mainly metallic iron, hematite and magnetite) encapsulated into multi-walled carbon nanotubes (CNTs) as reactants in an electrochemical synthesis is reported for the first time in this work. Prussian blue (PB) is electrosynthesized in a heterogeneous reaction between ferricyanide ions in aqueous solution and t...

This work describes the preparation of novel carbon paste electrodes by mixing of different carbonaceous materials with an organic binder (Nujol). All carbonaceous materials employed in this study were synthesized from the pyrolysis of different poly(furfurylalcohol)-based precursors, and will be referred here as glassy carbon (GC), template carbon...