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 20 of 480 for “"biosensor"”.
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MEMS Biosensor for Water-Immersed Application
… environment. In order to obtain a cell-based biosensor, the sensing method needs to be reliable and repeatable in a liquid environment. Therefore, this study is focused on transforming existing air-based sensors to water-immersed applications. This study includes two types of sensors.</p> …
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Deposited Nanorod Films for Biosensor Applications
Planar photonic crystals have been used as the basis of many biological sensing devices. Here, we successfully demonstrate that the combination of the photonic crystal structures and a dielectric nanorod coating prepared by glancing-angle deposition method can lead to significant increases in the …
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External cavity laser label-free biosensor
… we demonstrate a new type of label-free optical biosensor that achieves a high quality factor through the process of stimulated emission, while at the same time providing high sensitivity, large dynamic range and simple detection instrumentation. The photonic crystal is fabricated inexpensively …
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DNA Inspired Tools for Biosensor Design
This thesis endeavours to advance the field of biosensor development by introducing innovative DNA immobilisation strategies, with a primary focus on designing a new generation of biosensors utilising DNA as a biorecognition element. In Chapter 2, the exploration of a copper (II) (Cu (II)) specific …
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Biosensor design utilizing particle-bound enzymes
… reagents, a novel falling particle biosensor design was explored in this thesis, where the sedimentation of the silica particles was used to drive mixing in an otherwise stationary fluid compartment. The performance of this design was compared against two other formats commonly …
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Particle-modified Surface Plasmon Resonance Biosensor
Surface plasmon resonance (SPR) biosensors have attracted great attention in scientific research in the past three decades. Extensive studies on the immobilisation of biorecognition elements have been conducted in pursuit of higher sensitivity, but trialled formats have focussed on a thin layer …
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Impedance measurement platform for impedimetric biosensor
Measuring proteins in blood is particularly common such as in PSA, to determine prostate function and in many other bio-applications. Today this process is inconveniencing in that it requires a lot of blood from the patients for tests to be made. Furthermore it is time consuming and expensive since …
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Glucose Biosensor Using Electrospun Mn2O3-Ag Nanofibers
… (GOD) to construct an amperometric glucose biosensor. A notable enhancement of direct electron transfer between GOD and the electrode is observed at the Mn<sub>2</sub>O<sub>3</sub>-Ag-GOD modified electrode with a fast electron transfer rate constant. The biosensor also shows fast response …
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Miniaturized Fluorescence Biosensor for Studying Neuronal Events
When developing new techniques to analyze neuro-chemical microenvironments, it is important to realize the incredible variability in the cellular content and the response to stimulation between cells and within a single cell. Conventional analysis techniques yield an average result to describe the …
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Characterization of Fluorescent biosensor for Rab11 GTPase
L'abstract è presente nell'allegato / the abstract is in the attachment
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Distributed Feedback Laser Biosensor in Microplate Format
… large area (~3x5 in2) distributed feedback laser biosensors (DFBLB) on flexible plastic substrates, which were subsequently incorporated into standard format 96-well microplates. A room temperature nanoreplica molding process was used to create subwavelength periodic grating structures, while a …
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Porous photonic crystal external cavity laser biosensor
Embargo set by: Colleen Fallaw for item 102812 Lift date: 2019-08-10T21:27:21Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system
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A micromechanical biosensor with inherently differential readout
The ability to detect biomolecules in real-time and without the use of labels has significant benefits for systems biology in terms of cost, time and throughput. Cantilever-based micromechanical sensors detect biomolecular adsorption by means of surface-stress-induced cantilever bending. This …
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New polymeric biomaterial interfaces for biosensor applications
To fabricate living cell-based immunological sensors, we have examined two PEO-based biomaterials that can be patterned to generate cellular array templates: poly(allylamine)-g- poly(ethylene glycol) graft-copolymer and poly(ethylene glycol) dimethacrylate hydrogel. Poly(allylamine)-g-poly(ethylene …
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Poly(phenylene ethynylene)s in biosensor applications
Conjugated polymers have shown remarkable sensitivity for the detection of a variety of analytes, ranging from explosives to biological molecules such as DNA. This thesis presents three new applications of poly(phenylene ethynylene)s (PPEs) in biosensing applications. Biotinylated PPEs were …
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External cavity laser biosensor for label-free detection
Optical label-free biosensors serve as a powerful detection tool to analyze biomolecular interactions, and have been widely used in pharmaceutical drug discovery and biochemical sensing. Desirable performance metrics for such sensors include high sensitivity and fine resolution, which are essential …
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Instrumentation for a distributed feedback laser biosensor system
The development of the instrumentation behind a biosensor system based on a vertically emitting distributed feedback laser is presented. The performance of the label-free high-resolution biomolecular detection system is optimized for use in applications that require the study of large quantities of …
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