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 16 of 16 for “"microwire"”.
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Nanoparticle and Sol -Gel Inks for Direct -Write Assembly of Functional Metallic and Metal Oxide Materials
The ability to pattern 1D arrays of TiO2 microwires offers precise control of filament diameter and spatial location, enabling a systematic study of microwire TiO2 gas sensors. A model gas sensor consisting of a single layer of parallel microwires is printed with the TiO2-based sol-gel ink in a …
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Cortical recording with conducting polymer electrodes
… stability. The flexibility of a polypyrrole microwire has the potential to improve the chronic recording stability by minimizing the stiffness mismatch. This thesis shows the fabrication of conducting polymer electrodes and the stability of their impedance in physiological saline. The initial …
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Layer-by-layer assembly of conducting membranes for photoelectrochemical cells
… is used to achieve vertical transfer of silicon microwire arrays into an ion-conducting, ultrathin polymer membrane. The choice of LbL platform and the properties of the silicon surface control the film morphology, generating either a conformal coating around each wire or a bridging film across …
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Designing Planar Silicon Solar Cells for Singlet Fission Sensitization
… interface engineering. Prior work showed that Si microwire cells sensitized with tetracene (Tc) and a zinc phthalocyanine (ZnPc) donor layer can boost photocurrent and external quantum efficiency (EQE). Planar devices are simpler to fabricate than microwire devices and reproduce the planar …
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Fabrication of novel sensors from nanomaterials
… silver nanowires assembled into a microwire and encapsulated within agarose gel has also been fabricated. This sensor showed sensitivity to streptavidin when the response was measured parallel to the formed microwire, but gave a much lower signal when the response was measured …
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Design and Development of Emerging Platforms for Personal Healthcare
… study focused on the development of an enzymatic microwire biosensor for detecting metabolic biomarkers associated with neurodegenerative diseases. This work introduced novel strategies for addressing non-redox measurable reactions, enabling the detection of malate, fumarate, and succinate at …
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Conducting polymer wires for intravascular neural recording
… techniques used to build them. Polypyrrole microwire electrodes were first built in order to demonstrate the feasibility of an all-polymer neural recording electrode, and were shown to give high-fidelity intravascular recordings. Polyaniline nanowires were then fabricated by coaxial …
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Effects of Dip-coated films on the Properties of Implantable Intracortical Microelectrodes
… receptors, dip-coated onto segments of metal microwire, can simulate localized inflammation around an implanted ICM. We observe elevated activation of glial cells in interface regions, and extending into more distant regions. This elevation in glial responses is not accompanied by a decrease …
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From elastic electrodes to fabric systems
… elasticity (> 10%), through buckling of a metal microwire within a cavity, or through twisting of a fiber to yield helical metal electrodes. We later examine the mechanical constraints involved in weaving and knitting, and enrich the list of principles for fiber design, to limit friction and …
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Fabrication and characterization of conducting polymer microwires
Flexible microwires fabricated from conducting polymers have a wide range of potential applications, including smart textiles that incorporate sensing, actuation, and data processing. The development of garments that integrate these functionalities over wide areas (i.e. the human body) requires the …
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Scalable Bundle Design for Massively Parallel Neuronal Recordings <i>In Vivo</i>
… I propose the combined use of glass ensheathed microwire bundle electrodes and an infrared camera readout integrated circuit to collect massively parallel neuronal recordings <i>in vivo</i>. This design will allow for the recording of high quality signals because of the non-intrusive dimensions, …
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Metal-organic nanowires
… using an integrated microfluidic system. Au-TTF microwires were formed and immobilized inside the microchip. Then, different surface modification protocols were applied to modify Au-TTF wires which were used for sensitive label-free detection of catecholamines and human IgG by Raman spectroscopy. …
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Controlled electrodeposition of metal nanocentres for catalysis
… substrates such as microdisc, microband and microwire electrodes were used for the study of controlled electrodeposition. Their smaller surface area provides a better tool for the study of nucleation and growth of nuclei. The effect of mass transport was studied with microdisc and rotating …
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Nanoscale magnetometry with a microcontroller-based magnetometer using a single nitrogen-vacancy defect in nanodiamond
… magnetic field profile of a magnetized steel microwire, and a spatial magnetic field gradient of 13 µT/63 nm was measured. Besides, its usefulness in nanoscale imaging of magnetic fields, the present work can be of interest in development of compact nanodiamond based magnetometer.
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The role of the periaqueductal gray in modulation of acute and chronic pain: Actions of drugs with analgesic properties on periaqueductal gray neuronal network
… single unit activity using 8 channel microwire electrodes chronically-implanted in the PAG of unrestrained awake rats and examining responses to noxious thermal stimulation (Peltier device). The results indicate the presence of the three types of neuronal populations in the PAG that …