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 18 of 18 for “"Immunosensors"”.
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Immunosensors developed on clathrate platform compounds
… platform by incubation and were evaluated as immunosensors for fish species identification. The antibody/antigen binding event was evaluated using UV/Vis spectroscopy, electrochemical impedance spectroscopy (EIS) and atomic force microscopy (AFM). The immunosensor response to parvalbumin in …
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Thermoplastic electrode surface modifications for use as label-free electrochemical immunosensors
… a wide variety of applications, but their use as immunosensors has been limited due to difficulty with antibody immobilization. This work seeks to explore techniques for modifying TPE surfaces for use as label-free immunosensors. Chapter 2 examines common antibody immobilization techniques applied …
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Detection of Antibody-Antigen Reactions using Surface Acoustic Wave and Electrochemical Immunosensors
… time-consuming and non-trivial. In this work, immunosensors based on surface acoustic wave and electrochemical techniques are presented, which provide high specificity like conventional immunoassays and the real-time monitoring of immunoreactions can be achieved. Surface acoustic wave devices …
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Development of electrochemical immunosensors for detection of Tau protein : computational and experimental studies
Submitted in fulfilment of the Degree of Master of Applied Sciences in Chemistry, Durban University of Technology, Durban, South Africa, 2019.
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Composite Films for Modifying Evanescent Wave Characteristics in Long-Period Grating Biosensors
… transducers to generate quantifiable signals. Immunosensors are biosensors that use antibodies as the recognition element. The highly specific nature of antibody-antigen binding is exploited to create immunosensors that are sensitive to analytes in complex mixtures and demonstrate a rapid …
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Electrochemical immunosensor based on cyclodextrin supramolecular interactions for the detection of human chorionic gonadotropin
… the development of amperometric enzyme linked immunosensors. The selectivity of each enzyme towards its analyte deepens its importance in determining the sensitivity of the resultant immunosensor. In designing immunosensors that have customized transducer surfaces, the incorporation with FAD …
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Electrochemical Immunosensor based on Cyclodextrin Supramolecular interactions for the detection of human chorionic gonadotropin
… the development of amperometric enzyme linked immunosensors. The selectivity of each enzyme towards its analyte deepens its importance in determining the sensitivity of the resultant immunosensor. In designing immunosensors that have customized transducer surfaces, the incorporation with FAD …
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Electrochemical immunosensor based on cyclodextrin supramolecular interactions for the detection of human chorionic gonadotropin
… the development of amperometric enzyme linked immunosensors. The selectivity of each enzyme towards its analyte deepens its importance in determining the sensitivity of the resultant immunosensor. In designing immunosensors that have customized transducer surfaces, the incorporation with FAD …
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Development of a Magnetically Enhanced Quartz Crystal Microbalance
Research pertaining to immunosensors has often been driven by, and limited to, the analyte detection limit of the system in use. Recently, a great deal of attention has been paid to piezoelectric sensing devices, more specifically: quartz crystal microbalances (QCM). In an attempt to push the …
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Imunossensor optoeletrônico para detecção de contaminação de escherichia coli na água
… and development of plastic optical fiber (POF) immunosensors for contaminated water identification in less than an hour. Based on the immune response, the POF is functionalized with an antibody to capture bacteria and identify Escherichia coli concentrations in water. The physical principle …
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Design, fabrication and testing of an acoustic resonator-based biosensor for the detection of cancer biomarkers
… these resonators are functionalized as immunosensors by covalently binding antibodies to the surface of the device. The quality of the surface chemistry is fully assessed using water contact angle, atomic force microscopy and confocal laser scanning microscopy. Functionalized biosensors …
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Development and characterization of nanocarbon-based devices for sensing applications
… devices and the sensing properties achieved as immunosensors, or humidity/temperature and volatile organic compounds (VOC) sensors are shown and discussed; Finally, in the conclusions the main results, work in progress, developments and future applications are discussed.
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Electrochemical sensor interface
… to nano and ultra micro electrochemical immunosensors through Electrochemical Impedance Spectroscopy. Results from the device were benchmarked against laboratory equipment to ensure it is of suitable sensitivity to be fit for purpose. The printed circuit board has been designed such that …
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Miniature fiber-optic multicavity Fabry-Perot interferometric biosensor
… of this structure for practical applications, immunosensors were fabricated and tested using these structures. Self-assembled polyelectrolytes served as a precursor film for immobilization of antibodies to ensure they retain their biological activity. This not only provides a convenient method …
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Assessment of taxol activity: Bioavailability in human physiological fluids and QSAR of taxol analogues based on a neural network design
… The second chapter describes a new class of immunosensors in which the binding event is directly transduced, so there is no requirement for a chemical label. The ligand is Staphylococcal Enterotoxin B (SEB), while the receptor is the anti-SEB antibody. A high sensitivity radioimmunoassay was …
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Nano- and micro- electrodes: applications in the biosensing field
… of these electrodes allowed their application as immunosensors using the steady-state current of a redox probe as transducing principle. In fact, an object having larger size than the electrode blocks the diffusing of the redox probe towards the electrochemical active surface. Indeed, platinum …
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Neue biosensorische Prinzipien für die Hämoglobin-A1c Bestimmung
… nachgewiesen. Für die Konstruktion des HbA1c-Immunosensors wurden Affinitätsmatrizen durch Modifizierung von Cellulose-Dialysemembranen mit glkPP bzw. Hp hergestellt. Grundlegend studiert wurde die Aktivierung der Cellulose-Membranen mit 1,1'-Carbonyldiimidazol (CDI) und …