Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Screen printed electrodes"”.
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Electrochemical impedance spectroscopy and surface plasmon resonance for diagnostic antibody detection
… for lipid antigen in solution and the use of screen-printed electrodes (SPE) in EIS to address affordability of diagnosis and improve sample turn-around time. The latter approach appeared quite promising in distinguishing a TB positive and a TB negative patient serum and is amenable to …
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Novel antibody-based biosensors for the detection of haptens, proteins and whole cells
… for implants and electropolymerisation of electrodes for immunoassay development are the basis of much of the research described in this thesis. A number of immunosensing methods were investigated for the generahon of improved biosensors for the detection of small haptens, proteins and …
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Development of smartphone hyphenated colorimetric, plasmonic and electrochemical biosensors for food contaminant detection
… critically analyse the state-of-the-art in screening and confirmatory methods, EU food safety legislation and the current research efforts in SBD development. In the third chapter an online biosensor database for food contaminant analyses is described and used to identify critical technology …
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Investigation of a novel electrocatalyst for hydrogen peroxide reduction and its application to sensing and biosensing.
… was based on a modification of silver paste electrodes, and the fabrication of an enzyme biosensor platform capable of operating on this material. A further key theme that was explored in this work was to make the biosensor amenable to fabrication using printing techniques, including screen …
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A low-cost, handheld potentiostat device capable of high-resolution measurements and IOT connectivity
… devices were connected to standard glossy carbon Screen-Printed Electrodes (SPEs) that were immersed in a solution of ferri/ferrocyanide and potassium chloride to provide a balanced evaluation of their respective current responses. OCP measurements were conducted using wire electrodes and pH …
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DNA based biosensors for environmental and medical applications
… DNA based biosensors were developed using screen printed electrode as transducers. Biosensors are defined as a self-containing integrated devices, capable of providing specific quantitative or semi-quantitative analytical information using a biological recognition element which is in …
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Development of low-cost sensing and separation devices based on macro, micro and nano technology for health applications
… device is based on the lamination of laser-printed polyester films using a computer, printer and laminator. The resulting toner-based microchips demonstrated a potential viability for chemical assays, coupled with several detection methods, particularly Chip-Electrophoresis-Chemiluminescence …
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A cystic fibrosis infection monitor
… a sensor has been developed using low cost screen printing in conjunction with electrochemical impedance spectroscopy for the detection of P. aeruginosa. Screen printed electrodes were developed and characterised. An impedance normalisation approach, developed in previous work, was used to …
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Development of ultrasensitive electrochemical sensors based on nanocomposites for environmental applications
… research aims to develop multi-sensors based on screen-printed electrodes, which have characteristics of low cost, high sensitivity, selectivity, and rapid analysis. The novel methods in this research proved their efficiency to detect analytes of interest in environmental media with high …
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The Formation of Metal Nanoparticle-Carbon Nanotube Composite Materials for the Non-enzymatic Detection of Glucose
… were used to form films on glassy carbon and screen printed electrodes for the non-enzymatic electrochemical detection of glucose in PBS buffer at physiological pH. Electrochemical pre-treatments in sodium hydroxide and sulfuric acid provided films with improved sensitivity. These films were …
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Development and application of electrochemical dithiothreitol (DTT) assay for analysis of particulate matter
… commercially available DropSens modified carbon screen printed electrodes (SPE's) with a DropSens impinging jet flow cell, granting the assay flexibility to be performed in any lab with commercially available components. Previous examples used homemade components restricting accessibility to the …
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Development of a Multi-Component Biosensor for Recombinase Polymerase Amplification-CRISPR/Cas12a-Based Detection of Fusarium oxysporum f. sp. cubense tropical race 4
… efficient electrochemical detection using gold screen-printed electrodes (SPEs) that were functionalized with methylene blue-tagged single-stranded DNA probes. To compliment this, a custom-built square wave voltammetry potentiostat was developed to quantify the electrochemical response, serving …
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The application of nanomaterials in electrochemical sensors and biosensors
… of this highly processable nanomatcrial onto screen-printed electrodes was also demonstrated for simple and rapld sensor device production. An enzyme-channelling system for the detection of glucose was optmused with HRP and GOX enzymes and applied to an mununosensor platform to report the …
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Novel Electrochemical Methods for Acidity Monitoring: Theory, Design and Application
… electrochemical sensors and the application of screen-printing technology in sensor fabrication are highlighted. Chapter 2 introduces the screen-printing technology and the fundamental methods of numerical simulation. In addition, reagents, equipment and software packages used in the thesis are …
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Diseño y producción de sensores y biosensores serigrafiados: aplicación a la determinación de aminas biógenas
La tendencia actual en el campo de la nutrición humana hacia una alimentación más sana evoluciona hacia el desarrollo y producción de productos percibidos como más saludables. Simultáneamente se ha producido un aumento considerable en la investigación de los efectos que ciertos componentes …