This paper describes the design and development of a novel electrochemical biosensor for measuring glycerol in wine. Our initial detailed studies were aimed at deducing the optimum conditions for biosensor operation by conducting hydrodynamic voltamm... Read More about Development of a disposable, amperometric glycerol biosensor based on a screen-printed carbon electrode, modified with the electrocatalyst meldolas blue, coated with glycerol dehydrogenase and NAD+: Application to the analysis of wine quality.
John Hart's Outputs (127)
Development of a novel dual-enzyme screen-printed amperometric biosensor for the analysis of esterified fatty acids (2023)
Journal Article
This paper describes, for the first time, the development of a novel trilinolein biosensor based on the immobilisation of lipase and lipoxygenase (LOX) onto a cobalt phthalocyanine screen-printed carbon electrode (CoPC-SPCE) in conjunction with amper... Read More about Development of a novel dual-enzyme screen-printed amperometric biosensor for the analysis of esterified fatty acids.
Studies towards the development of a novel, screen-printed carbon-based, biosensor for the measurement of polyunsaturated fatty acids (2020)
Journal Article
This paper describes the design, development and characterisation of an electrochemical biosensor for the measurement of linoleic and α-linolenic acid, as representative free polyunsaturated fatty acids (PUFAs), that may be implicated in food safety... Read More about Studies towards the development of a novel, screen-printed carbon-based, biosensor for the measurement of polyunsaturated fatty acids.
Screen-printed carbon based biosensors and their applications in agri-food safety (2020)
Journal Article
This review focuses on the ways in which screen-printed carbon electrodes have been tailored with different biorecognition elements, including enzymes, antibodies, and aptamers, often with other modifiers, such as mediators and nanoparticles, to prod... Read More about Screen-printed carbon based biosensors and their applications in agri-food safety.
© 2019 Elsevier B.V. This is the first report on the fabrication, characterisation and application of an electrochemical (bio)sensor system for the simultaneous measurement of skatole and androstenone. A biosensor for androstenone was fabricated usin... Read More about Novel, rapid, low-cost screen-printed (bio)sensors for the direct analysis of boar taint compounds androstenone and skatole in porcine adipose tissue: Comparison with a high-resolution gas chromatographic method.
An electrocatalytic screen-printed amperometric sensor for the selective measurement of thiamine (Vitamin B1) in food supplements (2019)
Journal Article
An electrocatalytic screen-printed sensor has been investigated for the measurement of the biologically important biomolecule vitamin B1 (thiamine) for the first time in food supplements. Under basic conditions, the vitamin was converted to its elect... Read More about An electrocatalytic screen-printed amperometric sensor for the selective measurement of thiamine (Vitamin B1) in food supplements.
Fabrication of miniaturised screen-printed glucose biosensors, using a water-based ink, and the evaluation of their electrochemical behaviour (2018)
Journal Article
This paper describes a simple, convenient approach to the fabrication of microband electrodes and microband biosensors based on screen printing technology. These devices were printed in a three-electrode configuration on one strip; a silver/silver ch... Read More about Fabrication of miniaturised screen-printed glucose biosensors, using a water-based ink, and the evaluation of their electrochemical behaviour.
A novel electroanalytical approach to the measurement of B vitamins in food supplements based on screen-printed carbon sensors (2017)
Journal Article
© 2017 Elsevier B.V. This paper describes the development of a novel electrochemical assay for the measurement of water-soluble vitamins in food and pharmaceutical products. The optimum conditions for the determination of vitamin B1 (thiamine), B2 (r... Read More about A novel electroanalytical approach to the measurement of B vitamins in food supplements based on screen-printed carbon sensors.
Development of a simple, low cost chronoamperometric assay for fructose based on a commercial graphite-nanoparticle modified screen-printed carbon electrode (2017)
Journal Article
© 2017 Elsevier Ltd This paper describes the development of a simple, low cost chronoamperometric assay, for the measurement of fructose, using a graphite-nanoparticle modified screen-printed electrode (SPCE-G-COOH). Cyclic voltammetry showed that th... Read More about Development of a simple, low cost chronoamperometric assay for fructose based on a commercial graphite-nanoparticle modified screen-printed carbon electrode.
Alpha-synuclein ferrireductase activity is detectible in vivo, is altered in Parkinson's disease and increases the neurotoxicity of DOPAL (2017)
Journal Article
© 2017 Elsevier Inc. The normal cellular role of α-synuclein is of potential importance in understanding diseases in which an aggregated form of the protein has been implicated. A potential loss or change in the normal function of α-synuclein could p... Read More about Alpha-synuclein ferrireductase activity is detectible in vivo, is altered in Parkinson's disease and increases the neurotoxicity of DOPAL.
Recent advances in the fabrication and application of screen-printed electrochemical (bio)sensors based on carbon materials for biomedical, agri-food and environmental analyses (2016)
Journal Article
This review describes recent advances in the fabrication of electrochemical (bio)sensors based on screen-printing technology involving carbon materials and their application in biomedical, agri-food and environmental analyses. It will focus on the va... Read More about Recent advances in the fabrication and application of screen-printed electrochemical (bio)sensors based on carbon materials for biomedical, agri-food and environmental analyses.
Voltammetric behaviour and determination of clonazepam using a disposable screen-printed sensor and its determination in serum and wine (2016)
Presentation / Conference Contribution
Clonazepam
Screen-printed Carbon Electrodes
Cyclic Voltammetry
Gas chromatography mass spectrometry
Adsorptive Stripping Voltammetry
Sample Preparation and Analysis
Conclusions
Design and development of novel screen-printed microelectrode and microbiosensor arrays fabricated using ultrafast pulsed laser ablation (2016)
Journal Article
© 2016 Elsevier B.V. All rights reserved. A new generic platform for the development of microbiosensors combining screen-printing and ultrafast pulsed laser technologies has been developed, characterised and evaluated. This new platform consists of a... Read More about Design and development of novel screen-printed microelectrode and microbiosensor arrays fabricated using ultrafast pulsed laser ablation.
A novel reagentless glutamate microband biosensor for real-time cell toxicity monitoring (2016)
Journal Article
© 2016 Elsevier B.V. A reagentless glutamate biosensor was applied to the determination of glutamate released from liver hepatocellular carcinoma cells (HepG2) in response to toxic challenge from various concentrations of paracetamol. A screen printe... Read More about A novel reagentless glutamate microband biosensor for real-time cell toxicity monitoring.
Amperometric Screen-Printed Galactose Biosensor for Cell Toxicity Applications (2016)
Journal Article
© 2016, Copyright © Taylor & Francis Group, LLC. ABSTRACT: This paper reports the development and application of a biosensor for the amperometric determination of galactose in the presence of human hepatocellular carcinoma cells with and without a... Read More about Amperometric Screen-Printed Galactose Biosensor for Cell Toxicity Applications.
Sensor and method for detecting androstenone or skatole in boar taint (2016)
Patent
The present application is concerned with a sensor system for and a method of detecting, and preferably quantifying, androstenone (CAS Reg.No. 18339-16-7) and/or skatole (CAS Reg. No. 83-34-1), the chemicals associated with boar taint. In a preferred... Read More about Sensor and method for detecting androstenone or skatole in boar taint.
The design, development and application of electrochemical glutamate biosensors (2015)
Journal Article
© 2015 Elsevier B.V. The development of biosensors for the determination of glutamate has been of great research interest for the past 25 years due to its importance in biomedical and food studies. This review focusses on the various strategies used... Read More about The design, development and application of electrochemical glutamate biosensors.
Development of a voltammetric assay, using screen-printed electrodes, for clonazepam and its application to beverage and serum samples (2015)
Journal Article
© 2015 Elsevier B.V. All rights reserved. This paper describes the development of an electrochemical assay based on screen-printed carbon sensors for the determination of clonazepam in serum and in wine. The cyclic voltammetric behaviour of the drug... Read More about Development of a voltammetric assay, using screen-printed electrodes, for clonazepam and its application to beverage and serum samples.
© 2015 Elsevier B.V. Abstract A screen printed carbon electrode (SPCE) containing the electrocatalyst Meldola's Blue (MB) has been investigated as the base transducer for a reagentless glutamate biosensor. The biopolymer chitosan (CHIT) and multiwall... Read More about Development of a novel reagentless, screen-printed amperometric biosensor based on glutamate dehydrogenase and NAD+, integrated with multi-walled carbon nanotubes for the determination of glutamate in food and clinical applications.
Fabrication and evaluation of a micro(bio)sensor array chip for multiple parallel measurements of important cell biomarkers (2014)
Journal Article
© 2014 by the authors; licensee MDPI, Basel, Switzerland. This report describes the design and development of an integrated electrochemical cell culture monitoring system, based on enzyme-biosensors and chemical sensors, for monitoring indicators of... Read More about Fabrication and evaluation of a micro(bio)sensor array chip for multiple parallel measurements of important cell biomarkers.
Novel reductive-reductive mode electrochemical detection of Rohypnol following liquid chromatography and its determination in coffee (2014)
Journal Article
© 2014 Elsevier B.V. Rohypnol (flunitrazepam) has been successfully determined in coffee by high performance liquid chromatography dual electrode detection (LC-DED) in the dual reductive mode. Initial studies were performed to optimise the chromatogr... Read More about Novel reductive-reductive mode electrochemical detection of Rohypnol following liquid chromatography and its determination in coffee.
Development of a disposable screen-printed amperometric biosensor based on glutamate dehydrogenase, for the determination of glutamate in clinical and food applications (2014)
Journal Article
A screen printed carbon electrode (SPCE) containing the electrocatalyst Meldola’s Blue (MB) has been investigated as the base transducer for a glutamate biosensor.
The sandwich biosensor was fabricated by firstly depositing a chitosan (CHIT) layer... Read More about Development of a disposable screen-printed amperometric biosensor based on glutamate dehydrogenase, for the determination of glutamate in clinical and food applications.
Electrochemical detection of benzodiazepines, following liquid chromatography, for applications in pharmaceutical, biomedical and forensic investigations (2014)
Journal Article
Benzodiazepines are an important class of drugs commonly administered with a potential for abuse and environmental pollution. This review focuses on the liquid chromatographic electrochemical detection of the benzodiazepine class of drugs. These are... Read More about Electrochemical detection of benzodiazepines, following liquid chromatography, for applications in pharmaceutical, biomedical and forensic investigations.
The redox behaviour of diazepam (valium) using a disposable screen-printed sensor and its determination in drinks using a novel adsorptive stripping voltammetric assay (2013)
Presentation / Conference Contribution
Use of whole blood for analysis of disease-associated biomarkers (2013)
Journal Article
Analyses for diagnosis and monitoring of pathological conditions often rely on blood samples, partly due to relative ease of collection. However, many interfering substances largely preclude the use of whole blood itself, necessitating separation of... Read More about Use of whole blood for analysis of disease-associated biomarkers.
Microfabricated glucose biosensor for culture welloperation (2013)
Journal Article
A water-based carbon screen-printing ink formulation, containing the redox mediator cobalt phthalocyanine (CoPC) and the enzyme glucose oxidase (GOx), was investigated for its suitability to fabricate glucose microbiosensors in a 96-well microplate f... Read More about Microfabricated glucose biosensor for culture welloperation.
Development of an amperometric screen-printed galactose biosensor for serum analysis (2013)
Journal Article
The development of a disposable amperometric biosensor for the measurement of circulating galactose in serum is described. The biosensor comprises a screen-printed carbon electrode (SPCE), incorporating the electrocatalyst cobalt phthalocyanine (CoPC... Read More about Development of an amperometric screen-printed galactose biosensor for serum analysis.
The redox behaviour of diazepam (Valium®) using a disposable screen-printed sensor and its determination in drinks using a novel adsorptive stripping voltammetric assay (2013)
Journal Article
In this study we investigated the possibility of applying disposable electrochemical screen-printed carbon sensors for the rapid identification and quantitative determination of diazepam in beverages. This was achieved utilising a previously unreport... Read More about The redox behaviour of diazepam (Valium®) using a disposable screen-printed sensor and its determination in drinks using a novel adsorptive stripping voltammetric assay.
The chronoamperometric and voltammetric behaviour of glutathione at screen-printed carbon micro-band electrodes modified with cobalt phthalocyanine (2012)
Journal Article
Screen-printed carbon electrodes (SPCEs) incorporating the electrocatalyst cobalt phthalocyanine (CoPC) have been successfully used for the manufacture of microband electrodes for the determination of reduced glutathione (GSH). Initially investigati... Read More about The chronoamperometric and voltammetric behaviour of glutathione at screen-printed carbon micro-band electrodes modified with cobalt phthalocyanine.
Voltammetric behaviour of lead at a microband screen-printed carbon electrode and its trace determination in plants by stripping voltammetry (2012)
Presentation / Conference Contribution
Development of a sandwich format, amperometric screen-printed uric acid biosensor for urine analysis (2012)
Journal Article
A screen-printed carbon electrode (SPCE) incorporating the electrocatalyst cobalt phthalocyanine (CoPC), fabricated using a water-based ink formulation, has been investigated as the base transducer for a uric acid biosensor. A sandwich biosensor was... Read More about Development of a sandwich format, amperometric screen-printed uric acid biosensor for urine analysis.
Redox mechanisms of rohypnol and mogadon and their exploitation in an assay using dual electrode ECD following HPLC (2012)
Presentation / Conference Contribution
Importance of the 1,4-benzodiazepine class of drugs
Cyclic voltammetric behaviour of Flunitrazepam (Rohypnol), and Nitrazepam (Mogadon)
Possible mechanism for their voltammetric behaviour
Optimisation of Liquid Chromatographic Separation and... Read More about Redox mechanisms of rohypnol and mogadon and their exploitation in an assay using dual electrode ECD following HPLC.
Novel electrode reactions of diazepam, flunitrazepam and lorazepam and their exploitation in a new redox mode LC-DED assay for serum (2012)
Journal Article
Previously unreported voltammetric redox behaviour was identified for flunitrazepam, lorazepam and diazepam at a glassy carbon electrode. This was successfully exploited for their determination in serum by high performance liquid chromatography dual... Read More about Novel electrode reactions of diazepam, flunitrazepam and lorazepam and their exploitation in a new redox mode LC-DED assay for serum.
Development of an amperometric, screen-printed, single-enzyme phosphate ion biosensor and its application to the analysis of biomedical and environmental samples (2011)
Journal Article
An amperometric phosphate biosensor, based on a cobalt phthalocyanine screen-printed carbon electrode (CoPC-SPCE) is described. The immobilisation of the enzyme pyruvate oxidase (PyOd) was investigated using pre-formed cellulose acetate/cellulose nit... Read More about Development of an amperometric, screen-printed, single-enzyme phosphate ion biosensor and its application to the analysis of biomedical and environmental samples.
Novel redox behaviour of the 1,4-Benzodiazepine Lorazepam and its analytical application (2011)
Presentation / Conference Contribution
Determination of catecholamines in urine using hydrophilic interaction chromatography with electrochemical detection (2011)
Journal Article
The determination of catecholamines in urine was investigated using hydrophilic interaction chromatography (HILIC) as an alternative to the commonly used reversed-phase (RP) method. A number of different approaches were explored, including per-aqueou... Read More about Determination of catecholamines in urine using hydrophilic interaction chromatography with electrochemical detection.
The voltammetric behaviour of lead at a microband screen-printed carbon electrode and its determination in acetate leachates from glazed ceramic plates (2011)
Journal Article
Microband screen-printed carbon electrodes (μBSPCEs) without further modification have been investigated as disposable sensors for the measurement of lead in acetate leachates from ceramic glazed plates. Cyclic voltammetry was employed to elucidate t... Read More about The voltammetric behaviour of lead at a microband screen-printed carbon electrode and its determination in acetate leachates from glazed ceramic plates.
A screen-printed, amperometric biosensor array incorporated into a novel automated system for the simultaneous determination of organophosphate pesticides (2011)
Journal Article
Organophosphate pesticides present serious risks to human and environmental health. A rapid reliable, economical and portable analytical system will be of great benefit in the detection and prevention of contamination. A biosensor array based on six... Read More about A screen-printed, amperometric biosensor array incorporated into a novel automated system for the simultaneous determination of organophosphate pesticides.
A screen-printed microband glucose biosensor system for real-time monitoring of toxicity in cell culture (2011)
Journal Article
Microband biosensors, screen-printed from a water-based carbon ink containing cobalt phthalocyanine redox mediator and glucose oxidase (GOD) enzyme, were used to monitor glucose levels continuously in buffer and culture medium. Five biosensors were o... Read More about A screen-printed microband glucose biosensor system for real-time monitoring of toxicity in cell culture.
A screen-printed microband glucose biosensor system for real-time monitoring of toxicity in cell culture (2011)
Journal Article
#Microband biosensors, screen-printed from a water-based carbon ink containing cobalt phthalocyanine redox mediator and glucose oxidase (GOD) enzyme, were used to monitor glucose levels continuously in buffer and culture medium. Five biosensors were... Read More about A screen-printed microband glucose biosensor system for real-time monitoring of toxicity in cell culture.
Voltammetric behavior of DNA and its derivatives using screen printed carbon electrodes and its possible application in genotoxicity screening (2010)
Journal Article
The aim of the current work was to characterize the electrochemical behavior of DNA and its derivatives using screen printed carbon electrodes (SPCEs). Differential pulse voltammetry (DPV) was carried out on guanine, adenine, 8-oxyguanine, 8-deoxygau... Read More about Voltammetric behavior of DNA and its derivatives using screen printed carbon electrodes and its possible application in genotoxicity screening.
Amperometric lactate biosensor for flow injection analysis based on a screen-printed carbon electrode containing Meldola's Blue-Reinecke salt, coated with lactate dehydrogenase and NAD+ (2010)
Journal Article
A biosensor for the measurement of lactate in serum has been developed, which is based on a screen-printed carbon electrode, modified with Meldola's Blue-Reinecke Salt (MBRS-SPCE), coated with the enzyme lactate dehydrogenase NAD+ dependent (from Por... Read More about Amperometric lactate biosensor for flow injection analysis based on a screen-printed carbon electrode containing Meldola's Blue-Reinecke salt, coated with lactate dehydrogenase and NAD+.
Electrocatalytic behaviour of citric acid at a cobalt phthalocyanine- modified screen-printed carbon electrode and its application in pharmaceutical and food analysis (2010)
Journal Article
Cobalt phthalocyanine-modified screen-printed carbon electrodes (CoPC-SPCEs) have been investigated as disposable sensors for the measurement of citric acid. The analyte was found to undergo an electrocatalytic oxidation process involving the Co2+/Co... Read More about Electrocatalytic behaviour of citric acid at a cobalt phthalocyanine- modified screen-printed carbon electrode and its application in pharmaceutical and food analysis.
Application of screen-printed microband biosensors incorporated with cells to monitor metabolic effects of potential environmental toxins (2010)
Journal Article
Microband biosensors were fabricated from a screen-printed water-based carbon ink containing cobalt phthalocyanine redox mediator and glucose oxidase or lactate oxidase enzyme. The microbiosensors were characterised for their ability to monitor ferro... Read More about Application of screen-printed microband biosensors incorporated with cells to monitor metabolic effects of potential environmental toxins.
Studies towards an amperometric phosphate ion biosensor for urine and water analysis (2010)
Journal Article
An amperometric biosensor for phosphate ion is described that is based on a cobalt phthalocyanine modified screen-printed carbon electrode (CoPC-SPCE). The biosensor operation is based on the enzyme pyruvate oxidase (PyOd) which catalyses the oxidati... Read More about Studies towards an amperometric phosphate ion biosensor for urine and water analysis.
A flow injection system, comprising a biosensor based on a screen-printed carbon electrode containing Meldola's Blue-Reinecke salt coated with glucose dehydrogenase, for the measurement of glucose (2010)
Journal Article
A biosensor for the measurement of glucose in serum has been developed, based on a screen-printed carbon electrode modified with Meldola's Blue-Reinecke salt, coated with the enzyme glucose dehydrogenase (from Bacillus sp.), and nicotinamide adenine... Read More about A flow injection system, comprising a biosensor based on a screen-printed carbon electrode containing Meldola's Blue-Reinecke salt coated with glucose dehydrogenase, for the measurement of glucose.
Development of an amperometric assay for phosphate ions in urine based on a chemically modified screen-printed carbon electrode (2009)
Journal Article
An amperometric assay for the determination of inorganic phosphate (Pi) in urine has been developed without the need for sample preparation. A screen-printed carbon electrode modified with the electrocatalyst cobalt phthalocyanine (CoPC-SPCE) and cov... Read More about Development of an amperometric assay for phosphate ions in urine based on a chemically modified screen-printed carbon electrode.
The electrochemical behavior of nitrazepam at a screen-printed carbon electrode and its determination in beverages by adsorptive stripping voltammetry (2009)
Journal Article
The cyclic voltammetric behavior of nitrazepam was investigated at screen-printed carbon electrodes over the range1.5 V to {thorn}1.5 V. Two reduction peaks were observable on the negative scan, at 0.7 V, and 1.2 V using pH 6 buffer. On the return sc... Read More about The electrochemical behavior of nitrazepam at a screen-printed carbon electrode and its determination in beverages by adsorptive stripping voltammetry.
Voltammetric and amperometric behaviour of reduced glutathione at a microband cobalt phthalocyanine modified screen-printed carbon electrode (2009)
Presentation / Conference Contribution
The voltammetric behaviour of lead at a microband screen-printed carbon electrode and its determination in acetate leachates from glazed ceramic plates (2009)
Presentation / Conference Contribution
Application of screen-printed microband biosensors to end-point measurements of glucose and cell numbers in HepG2 cell culture (2009)
Journal Article
Microband glucose biosensors were produced by insulating and sectioning through a screen-printed, water-based carbon electrode containing cobalt phthalocyanine redox mediator and glucose oxidase enzyme. Under quiescent conditions at 37 °C, at an oper... Read More about Application of screen-printed microband biosensors to end-point measurements of glucose and cell numbers in HepG2 cell culture.
A microband lactate biosensor fabricated using a water-based screen-printed carbon ink (2009)
Journal Article
The present study demonstrated for the first time that screen-printed carbon microband electrodes fabricated from water-based ink can readily detect H2O2 and that the same ink, with the addition of lactate oxidase, can be used to construct microband... Read More about A microband lactate biosensor fabricated using a water-based screen-printed carbon ink.
Fabrication of microband glucose biosensors using a screen-printing water-based carbon ink and their application in serum analysis (2009)
Journal Article
Microband glucose biosensors were fabricated by screen-printing a water-based carbon ink formulation containing cobalt phthalocyanine redox mediator and glucose oxidase (GOD) enzyme, then insulating and sectioning through the thick (20 μm) film to ex... Read More about Fabrication of microband glucose biosensors using a screen-printing water-based carbon ink and their application in serum analysis.
The voltammetric behaviour of lead at a microband screen-printed carbon electrode and its determination in acetate leachates from glazed ceramic plates (2008)
Presentation / Conference Contribution
Determination of flunitrazepam and nitrazepam in beverage samples by liquid chromatography with dual electrode detection using a carbon fibre veil electrode (2008)
Journal Article
Both nitrazepam and flunitrazepam have been determined by high-performance liquid chromatography dual electrode detection (LC-DED) in the reductive-reductive mode, using a carbon fibre veil electrode (CFVE) in conjugation with a glassy carbon electro... Read More about Determination of flunitrazepam and nitrazepam in beverage samples by liquid chromatography with dual electrode detection using a carbon fibre veil electrode.
Real-time monitoring of glucose and lactate concentrations using screen-printed microband biosensors (2008)
Presentation / Conference Contribution
Development of an anodic stripping voltammetric assay, using a disposable mercury-free screen-printed carbon electrode, for the determination of zinc in human sweat (2008)
Journal Article
This paper reports on the development of a novel electrochemical assay for Zn2+ in human sweat, which involves the use of disposable screen-printed carbon electrodes (SPCEs). Initially, SPCEs were used in conjunction with cyclic voltammetry to study... Read More about Development of an anodic stripping voltammetric assay, using a disposable mercury-free screen-printed carbon electrode, for the determination of zinc in human sweat.
Characterisation and application of screen-printed glucose and lactate mircobiosensors for use in cell metabolism studies (2008)
Presentation / Conference Contribution
Chapter 23 Screen-printed electrochemical (bio)sensors in biomedical, environmental and industrial applications (2007)
Journal Article
This chapter describes a number of approaches for the fabrication of prototype screen-printed electrochemical (bio) sensors together with selected applications in the areas of biomedical, environmental and industrial analyses. Novel methods of immobi... Read More about Chapter 23 Screen-printed electrochemical (bio)sensors in biomedical, environmental and industrial applications.
Voltammetric behaviour of p-nitrophenol and its trace determination in human urine by liquid chromatography with a dual reductive mode electrochemical detection system (2007)
Journal Article
The determination of trace p-nitrophenol (PNP) concentrations in human urine has been successfully achieved by high performance liquid chromatography dual electrode detection (LC-DED) in the reduction-reduction mode. Initial cyclic voltammetric studi... Read More about Voltammetric behaviour of p-nitrophenol and its trace determination in human urine by liquid chromatography with a dual reductive mode electrochemical detection system.
Voltammetric behavior of p-nitrophenol and its trace determination in human urine by liquid chromatography with a dual reductive mode electrochemical detection system (2007)
Journal Article
The determination of trace p-nitrophenol (PNP) concentrations in human urine has been successfully achieved by high performance liquid chromatography dual electrode detection (LC-DED) in the reduction-reduction mode. Initial cyclic voltammetric studi... Read More about Voltammetric behavior of p-nitrophenol and its trace determination in human urine by liquid chromatography with a dual reductive mode electrochemical detection system.
Development of a novel electrochemical immuno-assay using a screen printed electrode for the determination of secretory immunoglobulin A in human sweat (2007)
Journal Article
This paper reports on the steps involved in the development of a novel electrochemical immunoassay for secretory immunoglobulin A (sIgA) determinations in human sweat. This novel immunoassay involves an initial step whereby sweat sIgA is adsorbed ont... Read More about Development of a novel electrochemical immuno-assay using a screen printed electrode for the determination of secretory immunoglobulin A in human sweat.
Voltammetric behaviour of DNA bases at a screen-printed carbon electrode and its application to a simple and rapid voltammetric method for the determination of oxidative damage in double stranded DNA (2007)
Journal Article
Screen-printed carbon electrodes (SPCEs) have been investigated as possible sensors to identify γ-irradiation induced oxidative damage in double stranded (ds) DNA. Studies were undertaken to explore the possibility of using both cyclic voltammetry an... Read More about Voltammetric behaviour of DNA bases at a screen-printed carbon electrode and its application to a simple and rapid voltammetric method for the determination of oxidative damage in double stranded DNA.
Voltammetric behaviour of DNA bases at an unmodified screen-printed carbon electrode and its application for the determination of oxidative damage in double stranded DNA (2006)
Presentation / Conference Contribution
Voltammetric behavior of nitrazepam and its determination in serum using liquid chromatography with redox mode dual-electrode detection (2006)
Journal Article
A method involving high-performance liquid chromatography with dual-electrode electrochemical detection in the redox mode (LC-DED) has been successfully developed for the determination of the benzodiazepine tranquilizer, nitrazepam, in serum. To eluc... Read More about Voltammetric behavior of nitrazepam and its determination in serum using liquid chromatography with redox mode dual-electrode detection.
Determination of nitrazepam in serum using liquid chromatography with redox mode dual electrode detection (2005)
Presentation / Conference Contribution
Amperometric, screen-printed, glucose biosensor for analysis of human plasma samples using a biocomposite water-based carbon ink incorporating glucose oxidase (2005)
Journal Article
This paper describes the optimisation of a screen-printing water-based carbon ink containing cobalt phthalocyanine (CoPC) and glucose oxidase (GOD) for the fabrication of a glucose biosensor. To optimise the performance of the biosensor, the loadings... Read More about Amperometric, screen-printed, glucose biosensor for analysis of human plasma samples using a biocomposite water-based carbon ink incorporating glucose oxidase.
A novel, disposable, screen-printed amperometric biosensor for glucose in serum fabricated using a water-based carbon ink (2005)
Journal Article
Screen-printed amperometric glucose biosensors have been fabricated using a water-based carbon ink. The enzyme glucose oxidase (GOD) and the electrocatalyst cobalt phthalocyanine were mixed with the carbon ink prior to the screen-printing process; th... Read More about A novel, disposable, screen-printed amperometric biosensor for glucose in serum fabricated using a water-based carbon ink.
Amino acid determination using screen-printed electrochemical sensors (2005)
Journal Article
The use of a screen-printed electrochemical sensor (SPES) strip, consisting of a two-electrode system (a carbon working electrode and Ag/AgCl reference electrode), for amino acid determination is reported. The behaviour of the SPES toward cysteine an... Read More about Amino acid determination using screen-printed electrochemical sensors.
Voltammetric determination of urinary 1-hydroxypyrene using molecularly imprinted polymer-modified screen-printed carbon electrodes (2005)
Journal Article
A two step non-competitive affinity method for the trace determination of 1-hydroxypyrene (1-OHP) using a disposable molecularly imprinted polymer (MIP) modified screen-printed carbon electrode (MIP-SPCE) has been developed. The MIP was synthesized a... Read More about Voltammetric determination of urinary 1-hydroxypyrene using molecularly imprinted polymer-modified screen-printed carbon electrodes.
Voltammetric behaviour of the psychotropic drug flunitrazepam at a screen printed carbon electrode and its possible application in forensic studies (2004)
Presentation / Conference Contribution
Some Recent Designs and Developments of Screen-Printed Carbon Electrochemical Sensors/Biosensors for Biomedical, Environmental, and Industrial Analyses (2004)
Journal Article
This review describes the design and fabrication of electrochemical sensors/biosensors based on screen-printing technology and their applications in pharmaceutical, biomedical, environmental, and industrial analyses. Specific emphasis is placed on na... Read More about Some Recent Designs and Developments of Screen-Printed Carbon Electrochemical Sensors/Biosensors for Biomedical, Environmental, and Industrial Analyses.
Voltammetric, chromatographic and mass spectral elucidation of the redox reactions of 1-hydroxypyrene occurring at a screen-printed carbon electrode (2004)
Journal Article
The electrochemical oxidation of 1-hydroxypyrene (1-OHP) has been studied at a screen-printed carbon electrode (SPCE), by cyclic voltammetry and bulk electrolysis. Cyclic voltammograms exhibited two quasi-reversible pairs of peaks (designated 1a′/1c... Read More about Voltammetric, chromatographic and mass spectral elucidation of the redox reactions of 1-hydroxypyrene occurring at a screen-printed carbon electrode.
Screen-printed electrochemical sensors for monitoring metal pollutants (2003)
Journal Article
This review describes current developments in the design and fabrication of disposable screen-printed sensors for the electrochemical determination of trace metals in biological, environmental and industrial samples. Specific emphasis is placed on se... Read More about Screen-printed electrochemical sensors for monitoring metal pollutants.
Sensors/biosensors, based on screen-printing technology for biomedical applications (2003)
Journal Article
This article describes three recent developments from our laboratory, in which screen-printed carbon electrodes have been modified in order to develop sensors/biosensors for analytes of biomedical importance. The analytical applications described are... Read More about Sensors/biosensors, based on screen-printing technology for biomedical applications.
Voltammetric behaviour of 2,6-dinitrotoluene at a screen-printed carbon electrode and its possible redox mechanisms (2002)
Presentation / Conference Contribution
The stability of the biological components within a screen printed ammonium biosensor (2002)
Presentation / Conference Contribution
Molecularly imprinted polymers as recognition elements in screen-printed carbon electrodes (2002)
Presentation / Conference Contribution
Voltammetric behaviour and trace determination of copper at a mercury-free screen-printed carbon electrode (2002)
Journal Article
Screen-printed carbon electrodes (SPCEs), without chemical modification, have been investigated as disposable sensors for the measurement of trace levels of Cu2+. Cyclic voltammetry was employed to elucidate the electrochemical behaviour of Cu2+ at t... Read More about Voltammetric behaviour and trace determination of copper at a mercury-free screen-printed carbon electrode.
Electrochemical behaviour of 2,6-dinitrotoluene at a screen-printed sensor and its possible application in occupational hygiene and environmental studies (2002)
Presentation / Conference Contribution
Voltammetric behavior and trace determination of cadmium at a calixarene modified screen-printed carbon electrode (2002)
Journal Article
Screen-printed carbon electrodes (SPCEs) have been evaluated for the anodic stripping voltammetric determination of cadmium using open circuit accumulation facilitated by two different calixarenes: a novel thiolated calixarene, calixarene (I), (5,11,... Read More about Voltammetric behavior and trace determination of cadmium at a calixarene modified screen-printed carbon electrode.
Voltammetric behavior and trace determination of cadmium at a calixarene modified screen-printed carbon electrode (2002)
Journal Article
Screen-printed carbon electrodes (SPCEs) have been evaluated for the anodic stripping voltammetric determination of cadmium using open circuit accumulation facilitated by two different calixarenes: a novel thiolated calixarene, calixarene (I), (5,11,... Read More about Voltammetric behavior and trace determination of cadmium at a calixarene modified screen-printed carbon electrode.
Voltammetric studies of Pb2+ at a modified screen-printed carbon electrode for trace determinations in natural waters by stripping voltammetry (2001)
Presentation / Conference Contribution
Voltammetric studies of cadmium at calixarene modified screen-printed carbon electrodes and its trace determination in water by stripping voltammetry (2001)
Presentation / Conference Contribution
Voltammetric studies of lead at calixarene modified screen-printed carbon electrodes and its trace determination in water by stripping voltammetry (2001)
Journal Article
Screen-printed carbon electrodes (SPCEs) have been modified with two different calixarenes; a novel thiolated calixarene (5,11,17,23,tetra-tert-butyl-25,26,27,28-tetrakis(2-mercaptoethoxy)- calix[4]arene), and the commercially available 25,26,27,28-t... Read More about Voltammetric studies of lead at calixarene modified screen-printed carbon electrodes and its trace determination in water by stripping voltammetry.
Voltammetric studies of lead at a 1-(2-pyridylazo)-2-naphthol modified screen-printed carbon electrode and its trace determination in water by stripping voltammetry (2001)
Journal Article
A method for the trace determination of Pb2+, using a disposable 1-(2-pyridylazo)-2-naphthol (PAN) drop-coated modified screen-printed carbon electrode (PAN-SPCE), has been developed. Lead ions (Pb2+) are accumulated from ammonia buffer, on the PAN-S... Read More about Voltammetric studies of lead at a 1-(2-pyridylazo)-2-naphthol modified screen-printed carbon electrode and its trace determination in water by stripping voltammetry.
Voltammetric studies of lead at a 1-(2-pyridylazo)-2-naphthol modified screen-printed carbon electrode and its trace determination in water by stripping voltammetry (2001)
Journal Article
A method for the trace determination of Pb2+, using a disposable 1-(2-pyridylazo)-2-naphthol (PAN) drop-coated modified screen-printed carbon electrode (PAN-SPCE), has been developed. Lead ions (Pb2+) are accumulated from ammonia buffer, on the PAN-S... Read More about Voltammetric studies of lead at a 1-(2-pyridylazo)-2-naphthol modified screen-printed carbon electrode and its trace determination in water by stripping voltammetry.
Voltammetric studies of Pb2+ at a modified screen-printed carbon electrode for trace determinations in natural waters by stripping voltammetry (2000)
Presentation / Conference Contribution
Voltammetric behavior and trace determination of lead at a mercury-free screen-printed carbon electrode (2000)
Journal Article
Abstract Screen-printed carbon electrodes (SPCEs), without chemical modification, have been investigated as disposable sensors for the measurement of trace levels of Pb. Cyclic voltammetry was employed to elucidate the electrochemical behavior of Pb... Read More about Voltammetric behavior and trace determination of lead at a mercury-free screen-printed carbon electrode.
Voltammetric behaviour and trace determination of lead at a mercury free screen printed carbon electrode (1999)
Presentation / Conference Contribution
A reagentless biosensor has been successfully developed to measure glutamate in food and clinical samples. The enzyme, glutamate dehydrogenase (GLDH) and the cofactor, nicotinamide adenine dinucleotide (NAD+) are fully integrated onto the surface of... Read More about A reagentless, screen-printed amperometric biosensor for the determination of glutamate in food and clinical applications.
Development of an Amperometric Assay, Based on a Screen-Printed Carbon Electrode, for Inorganic Phosphate in Biological and Environmental Samples
Presentation / Conference Contribution
Development of screen-printed metal sensors for applications in water analysis
Presentation / Conference Contribution
Development of a novel Liquid Chromatographic Dual Electrode Detection system for the determination of Flunitrazepam, Lorazepam and Diazepam in serum
Presentation / Conference Contribution
Voltammetric behaviour of DNA, nucleotides, nucleosides and bases using screen printed carbon electrodes and its possible application in toxicity screening
Presentation / Conference Contribution
A screen-printed, amperometric biosensor array incorporated into a novel automated system for the simultaneous determination of organophosphate pesticides
Presentation / Conference Contribution
Studies towards the development of a prototype, disposable, screen-printed, electrochemical biosensor for phosphate ions in the acqueous environment
Presentation / Conference Contribution
Voltammetric and amperometric behaviour of reduced glutathione at a mircoband, cobalt phthalocyanine modified, screen-printed carbon electrode
Presentation / Conference Contribution
Determination of nitrazepam in serum using liquid chromatography with redox mode dual electrode detection
Presentation / Conference Contribution
The development of a microband lactate biosensor for cell metabolism studies
Presentation / Conference Contribution
The characterization of screen-printed microband electrodes for NADH detection released from human cells
Presentation / Conference Contribution
Development of Electrochemical Methods for the Low Level Determination of Glutathione
Presentation / Conference Contribution
Monitoring indoles and diamines: A screen-printed sensors and biosensors approach
Presentation / Conference Contribution
Microband biosensors fabricated using a water-based carbon ink for the determination of glucose in human serum
Presentation / Conference Contribution
Development of electrochemical methods for the low level determination of Glutathione
Presentation / Conference Contribution
Screen printed carbon electrodes for stripping analysis of trace metals
Presentation / Conference Contribution
Determination of Trace p-nitrophenol concentrations in human urine by Liquid Chromatography Dual Electrochemical Detection
Presentation / Conference Contribution
Selective and rapid biosensor integrated into a commercial hand-held instrument for the measurement of ammonium ion in sewage effluent
Presentation / Conference Contribution
A disposable biosensor for ammonium ions in sewage effluent was developed and based on a screen-printed carbon electrode coated with the enzyme glutamate dehydrogenase, 2-oxoglutarate, and NADH. This rapid and selective amperometric biosensor is capa... Read More about Selective and rapid biosensor integrated into a commercial hand-held instrument for the measurement of ammonium ion in sewage effluent.
Studies towards the development of a screen-printed carbon electrochemical immunosensor array for mycotoxins: A sensor for aflatoxin B1
Presentation / Conference Contribution
Screen-printed carbon electrodes (SPCEs) bearing a surface-adsorbed antibody against aflatoxin B1 (AFB1) were used in a competitive immunoassay, based on competition of free analyte with a biotinylated aflatoxin B1 conjugate. Subsequent addition of s... Read More about Studies towards the development of a screen-printed carbon electrochemical immunosensor array for mycotoxins: A sensor for aflatoxin B1.
Voltammetric behaviour of Nitrazepam and Flunitrazepam, and their determination by Liquid-Chromatography Dual-Electrode Detection
Presentation / Conference Contribution
A screen-printed, amperometric, biosensor array for the detection of organophosphate pesticides based on inhibition of wild type, and mutant acetylcholinesterases, from Drosophila melanogaster
Presentation / Conference Contribution
Screen-printed carbon electrodes (SPCEs) modified with cobalt phthalocyanine (CoPC) have been used as base transducers in the construction of amperometric pesticide biosensors. Six individual biosensors were fabricated by depositing wildtype (WT) ace... Read More about A screen-printed, amperometric, biosensor array for the detection of organophosphate pesticides based on inhibition of wild type, and mutant acetylcholinesterases, from Drosophila melanogaster.
Voltammetric determination of urinary 1-hydroxypyrene by molecularly imprinted polymer-modified screen-printed carbon electrodes
Presentation / Conference Contribution
Voltammetric studies of lead at calixarene modified screen printed carbon electrodes and its trace determination in water by stripping voltammetry
Presentation / Conference Contribution
Towards the development of molecularly imprinted polymer based screen-printed sensors for metabolites of PAHs
Presentation / Conference Contribution
This paper describes the fabrication of a sensor for 1-hydroxypyrene (1-OHP) based on a screen-printed carbon electrode (SPCE) modified with a molecularly imprinted polymer (MIP); 1-OHP was chosen as a model metabolite of polyaromatic hydrocarbons (P... Read More about Towards the development of molecularly imprinted polymer based screen-printed sensors for metabolites of PAHs.
Determination of trace p nitrophenol concentrations in human urine by liquid chromatography dual electrochemical detection
Presentation / Conference Contribution
Novel method for the measurement of erythrocyte acetylcholinesterase activity in the Yt blood group system using amperometry in conjunction with screen-printed carbon electrodes
Presentation / Conference Contribution
Background: The five antigens of the Yt blood group system are located on the membrane GPI‐linked erythrocyte acetylcholinesterase (AChE‐E), which is implicated in a range of clinical issues, including sleep apnoea and neurotoxin poisoning. Conformat... Read More about Novel method for the measurement of erythrocyte acetylcholinesterase activity in the Yt blood group system using amperometry in conjunction with screen-printed carbon electrodes.
Evaluation of a novel disposable amperometric glycerol biosensor based on a meldolas blue-modified screen-printed carbon electrode for juice beverage analysis
Presentation / Conference Contribution
This study details the design and development of an electrochemical biosensor for measuring glycerol, an important compound in food and beverages, due to its role as a naturally occurring triose sugar and food additive (E 422). Monitoring glycerol co... Read More about Evaluation of a novel disposable amperometric glycerol biosensor based on a meldolas blue-modified screen-printed carbon electrode for juice beverage analysis.