Eithne Dempsey
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View article: Synergistic interface of Nb-doped MoSe2 and NiTe heterostructure enables efficient electrocatalysis for hydrogen evolution
Synergistic interface of Nb-doped MoSe2 and NiTe heterostructure enables efficient electrocatalysis for hydrogen evolution Open
View article: A sustainable Fe–CaMoO4 scheelite coupled with functionalised carbon black for the hydrogen evolution reaction
A sustainable Fe–CaMoO4 scheelite coupled with functionalised carbon black for the hydrogen evolution reaction Open
View article: Electrodeposition of redox materials with potential for enhanced visualisation of latent finger-marks on brass substrates and ammunition casings.
Electrodeposition of redox materials with potential for enhanced visualisation of latent finger-marks on brass substrates and ammunition casings. Open
View article: Factorial Design and Optimization of Trimetallic CoNiFe-LDH/Graphene Composites for Enhanced Oxygen Evolution Reaction
Factorial Design and Optimization of Trimetallic CoNiFe-LDH/Graphene Composites for Enhanced Oxygen Evolution Reaction Open
Layered double hydroxides (LDH) have exhibited promising applications as electrocatalysts in oxygen evolution reactions (OER). In this work, trimetallic LDHs (CoNiFe-LDH) were designed and grown on graphene (G) through a one-step hydrother…
View article: A CeFe2O4-CeO2 composite for the electrochemical detection and advanced oxidation of the antibiotic Sparfloxacin
A CeFe2O4-CeO2 composite for the electrochemical detection and advanced oxidation of the antibiotic Sparfloxacin Open
Antibiotics, such as fluoroquinolones, are frequently found in aquatic environments, making their detection and removal crucial from both an environmental and health perspective. In this study, a CeFe2O4 spinel was co…
View article: Electrochemical detection of sulfamerazine with ZnMn2O4 spinel spheres decorated with CeO2 nano powders and WS2 sheets
Electrochemical detection of sulfamerazine with ZnMn2O4 spinel spheres decorated with CeO2 nano powders and WS2 sheets Open
View article: Non-enzymatic electrochemical assay of <i>N</i>-acetyl-<scp>d</scp>-neuraminic acid through competitive chemoreceptor binding with (thiophen-3-yl)boronic acid
Non-enzymatic electrochemical assay of <i>N</i>-acetyl-<span>d</span>-neuraminic acid through competitive chemoreceptor binding with (thiophen-3-yl)boronic acid Open
Redox indicator displacement assay (RIDA).
View article: Corrosion-Engineered Room-Temperature Deposition of NiMoO<sub>4</sub>/NiS/Ni(OH)<sub>2</sub> at Nickel Foam: An Efficient Strategy and Electrocatalyst for the Oxygen Evolution Reaction
Corrosion-Engineered Room-Temperature Deposition of NiMoO<sub>4</sub>/NiS/Ni(OH)<sub>2</sub> at Nickel Foam: An Efficient Strategy and Electrocatalyst for the Oxygen Evolution Reaction Open
View article: Factorial Optimization of CoCuFe-LDH/Graphene Ternary Composites as Electrocatalysts for Water Splitting
Factorial Optimization of CoCuFe-LDH/Graphene Ternary Composites as Electrocatalysts for Water Splitting Open
The layered double hydroxides (LDHs) have demonstrated significant potential as non-noble-metal electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Their unique compositional and structural prope…
View article: Amplifying Flutamide Sensing through the Synergetic Combination of <i>Actinidia</i>-Derived Carbon Particles and WS<sub>2</sub> Platelets
Amplifying Flutamide Sensing through the Synergetic Combination of <i>Actinidia</i>-Derived Carbon Particles and WS<sub>2</sub> Platelets Open
The development of electrochemical sensors for flutamide detection is a crucial step in biomedical research and environmental monitoring. In this study, a composite of Actinidia-derived carbon particles (CPs) and tungsten disulfide …
View article: A Wearable Microfluidic Device for Capture and Quantitative Analysis of Glucose Coupled with Skin Electrodermal Activity
A Wearable Microfluidic Device for Capture and Quantitative Analysis of Glucose Coupled with Skin Electrodermal Activity Open
A multiparametric, non-invasive, and reagentless sensing strategy for diabetic monitoring is proposed based on a bespoke graphite ink “writable” formulation (including biocompatible binders and modifiers) used as a conductive layer for glu…
View article: Simple dispersion of carbon nanofibers in a naturally occurring polyphenol in water and their electrochemical characteristics
Simple dispersion of carbon nanofibers in a naturally occurring polyphenol in water and their electrochemical characteristics Open
Carbon nanofibers are hydrophobic with poor dispersion in water. They are normally functionalised using highly acidic solutions and elevated temperatures. In this communication, we show that tannic acid can be employed at room temperature …
View article: Exploitation of carbon surface functionality toward additive‐free formation of gold nanocuboids suitable for sensitive assay of <i>N</i>‐acetylcysteine in pharmaceutical formulations
Exploitation of carbon surface functionality toward additive‐free formation of gold nanocuboids suitable for sensitive assay of <i>N</i>‐acetylcysteine in pharmaceutical formulations Open
Chemical additive and physical template‐free electrochemical methods to prepare carbon‐supported nanostructures of catalyst metals represent an emerging technology. Formation of the metal nano/microstructures depends not only on the electr…
View article: Electrochemical detection of sulfanilamide using tannic acid exfoliated MoS2 nanosheets combined with reduced graphene oxide/graphite
Electrochemical detection of sulfanilamide using tannic acid exfoliated MoS2 nanosheets combined with reduced graphene oxide/graphite Open
Sulfonamides are a family of synthetic drugs with a broad-spectrum of antimicrobial activity. Like other antimicrobials, they have been found in aquatic environments, making their detection important. Herein, an electrochemical sensor was …
View article: Conductive polymer nanocomposites: recent advances in the construction of electrochemical biosensors
Conductive polymer nanocomposites: recent advances in the construction of electrochemical biosensors Open
This review focuses on the design, preparation and application of nanostructured CPNs in the construction of advanced electrochemical biosensors in medical diagnostics.
View article: Development of electrocatalytic hybrid film based on conducting polypyrrole–heteropolyanion
Development of electrocatalytic hybrid film based on conducting polypyrrole–heteropolyanion Open
The investigation focused on integrating heteropolyanions (HPAs) into a polymeric matrix of polypyrrole (PPy), aiming to achieve effective immobilisation for potential electrocatalytic applications. Specifically, the successful immobilizat…
View article: Electroanalysis of ethyl-centralite propellant stabiliser at magnetic nanoparticle modified glassy carbon and screen-printed electrodes with extension to forensic firearm residue analysis
Electroanalysis of ethyl-centralite propellant stabiliser at magnetic nanoparticle modified glassy carbon and screen-printed electrodes with extension to forensic firearm residue analysis Open
Electroanalysis of organic residues of the propellant stabiliser ethyl-centralite (1,3 diethyl-1,3 diphenyl urea, EC) generated from the discharge of a weapon or improvised explosive devices is examined. Comparative effects of an electrode…
View article: Electroanalysis of metronidazole using exfoliated MoS2 sheets and electrodeposited amorphous MoSx
Electroanalysis of metronidazole using exfoliated MoS2 sheets and electrodeposited amorphous MoSx Open
Molybdenum disulfide, MoS2, sheets were obtained by exfoliation of the bulk powders in an aqueous solution containing 1.0 mM tryptophan and then drop-cast onto a glassy carbon electrode to give GCE/MoS2. For comparative purposes, amorphous…
View article: Copper-modified carbon nano-onions as electrode modifiers for the electroanalysis of the antiretroviral drug Efavirenz
Copper-modified carbon nano-onions as electrode modifiers for the electroanalysis of the antiretroviral drug Efavirenz Open
The high prescription and consumption rate of antiretroviral drugs (ARV) such as Efavirenz (EFV) in South Africa for the treatment of the human immunodeficiency virus (HIV) has resulted in its presence in wastewater and surface water. Here…
View article: A single-step enzyme-free electrochemical assay of N-acetyl-D-neuraminic acid
A single-step enzyme-free electrochemical assay of N-acetyl-D-neuraminic acid Open
N-acetyl-D-neuraminic acid (Neu5Ac) is a sialic acid endogenously produced in higher vertebrates including humans. Its significant physiological, nutritional and clinical importance have been revealed over the past decades and recently Eur…
View article: An additive‐free electrosynthesis of gold micro‐stars for sensitive electroanalysis of <i>N</i>‐Acetyl‐L‐cysteine compared to conventional gold nanoparticles
An additive‐free electrosynthesis of gold micro‐stars for sensitive electroanalysis of <i>N</i>‐Acetyl‐L‐cysteine compared to conventional gold nanoparticles Open
Gold star (AuST), which is one of the important anisotropic gold structures, finds applications in catalysis, sensing, and photothermal therapy by virtue of its branches of high aspect ratio. The preparation of AuSTs can prove challenging …
View article: Development of Novel Pt(IV)-Carbohydrate Derivatives as Targeted Anticancer Agents against Osteosarcoma
Development of Novel Pt(IV)-Carbohydrate Derivatives as Targeted Anticancer Agents against Osteosarcoma Open
Despite the enormous importance of cisplatin as a chemotherapeutic agent, its application is impacted by dose-limiting side effects and lack of selectivity for cancer cells. Researchers can overcome these issues by taking advantage of the …
View article: Copper-Modified Carbon Nano-Onions as Electrode Modifiers for the Electroanalysis of the Antiretroviral Drug Efavirenz
Copper-Modified Carbon Nano-Onions as Electrode Modifiers for the Electroanalysis of the Antiretroviral Drug Efavirenz Open
View article: Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys
Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys Open
Metals and alloys are essential in modern society, and are used in our daily activities. However, they are prone to corrosion, with the conversion of the metal/alloy to its more thermodynamically-favored oxide/hydroxide phase. These undesi…
View article: ROS-responsive Ag-TiO2 hybrid nanorods for enhanced photodynamic therapy of breast cancer and antimicrobial applications
ROS-responsive Ag-TiO2 hybrid nanorods for enhanced photodynamic therapy of breast cancer and antimicrobial applications Open
There has been significant interest in designing heterostructured nanoparticles with excellent synergistic properties and multifunctionality. Herein, this work reports on the design of reactive oxygen species- (ROS-) responsive Ag decorate…
View article: Explorations in a galaxy of sialic acids: a review of sensing horizons, motivated by emerging biomedical and nutritional relevance
Explorations in a galaxy of sialic acids: a review of sensing horizons, motivated by emerging biomedical and nutritional relevance Open
Rationale for nutrition value and biodiagnostic requirements of sialic acids including Neu5Ac.
View article: Magnetic nanoparticle modified electrodes for voltammetric determination of propellant stabiliser diphenylamine
Magnetic nanoparticle modified electrodes for voltammetric determination of propellant stabiliser diphenylamine Open
View article: An Electrochemical Evaluation of Novel Ferrocene Derivatives for Glutamate and Liver Biomarker Biosensing
An Electrochemical Evaluation of Novel Ferrocene Derivatives for Glutamate and Liver Biomarker Biosensing Open
Here, we present an evaluation of two new monosubstituted ferrocene (Fc) derivatives, 3-(1H-pyrrol-1-yl)propanamidoferrocene and 1-hydroxy-2-[2-(thiophen-3-yl)-ethylamino]ethylferrocene, as glutamate oxidase mediators, together with their …
View article: Reversible self-assembly of gold nanoparticles in response to external stimuli
Reversible self-assembly of gold nanoparticles in response to external stimuli Open
Noble metal nanoparticles are highly attractive, owing to their optical, physical, electrical and chemical properties. Specifically, ease of surface modification, exceptional plasmonic and optical properties of gold nanoparticles (Au NPs) …
View article: Electrochemical investigations into enzymatic polymerisation of 1,10-phenanthroline-5,6-dione as a redox mediator for lactate sensing
Electrochemical investigations into enzymatic polymerisation of 1,10-phenanthroline-5,6-dione as a redox mediator for lactate sensing Open