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 12 of 12 for “"electrical detection"”.
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Electrical detection of atmospheric pollutants and detergents on silicon
… Si-JNT platform to achieve dual-channel NO2 detection (Chapter 3). The simultaneous evolution of multiple electrical parameters in response to varying NO2 concentrations enhances the sensor's sensitivity and selectivity. The extensive parameter space in ambipolar JNTs is leveraged to develop …
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New nitride-based devices for electrical detection of DNA hybridization
… of three new solid state sensors for the detection of DNA hybridization through electrical measurements. The first sensor is a surface acoustic wave device with tapered IDTs capable of giving us a tomographic image of the functionalized sensor surface. We investigated using an array of …
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Multiplexed label-free electrical detection of DNA amplification using field effect transistors
… miniaturized DNA amplification biosensor for the detection and identification of pathogenic bacteria. Using tailored loop-mediated isothermal amplification (LAMP) and field effect transistors, we developed a microchip platform for multiplexed screening of samples querying the presence of multiple …
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Transistor-based biosensing: expanding the functionality of field effect transistors
… heating/cooling, ultra-localized cell lysis, and electrical detection of nucleic acid amplification using an on-chip electrode, this thesis aims to enable the next generation of portable biosensors for primary care and on-site diagnostics. Chapter 2 presents an overview of the current …
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The development of a nanoscale Coulter counter for rapid genetic sequence recognition
… of a nanoscale Coulter counter for the direct electrical detection of specific genetic sequences of deoxyribonucleic acid (DNA); the general approach used to accomplish sequence recognition is a refinement of the resistive pulse technique. Commercial Coulter counters fabricated with …
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Detection of antiferromagnetic domain reversal in epitaxial insulating oxides
… First, we demonstrate the limitation of purely electrical detection of switching of the antiferromagnetic order with spin-orbit torques from electric current pulses. In epitaxial nickel oxide thin-films interfaced with a heavy metal as a source of spin-orbit torque, we show that electrical …
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Time-lapse Geophysical Investigations over Known Archaeological Features Using Electrical Resistivity Imaging and Earth Resistance
Electrical methods of geophysical survey are known to produce results that are hard to predict at different times of the year, and under differing weather conditions. This is a problem which can lead to misinterpretation of archaeological features under investigation. The dynamic relationship …
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Nature of Large Vesicle Exocytosis in Pancreatic β-cells: Release of ATP and GABA
… channel on the cell membrane permitted the electrical detection of minute (amoles) quantities of ATP and thus created a possibility to measure ATP released from a single insulin granule. The release of peptides and low molecular weight substances was explored by combining the detection of …
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Partial Discharge Detection and Localization in High Voltage Transformers Using an Optical Acoustic Sensor
… and insulation breakdown. This is why PD detection is used in power systems to monitor the state of health of high voltage transformers. If such problems are not detected and repaired, the strength and frequency of PDs increases and eventually leads to the catastrophic failure of the …
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Understanding transport processes of organic semiconductors via magnetic resonance methods
… the charge transport processes, including electrical measurements of OFETs, field-induced ESR, and vertical bilayer devices in ferromagnetic / detection configuration for spin current injections. Chapter 3 applies the field-induced ESR methods to triclinic phase rubrene- a bench-marking …
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Electrostatic control of microfluidic systems for enhancement of nanoparticle separations and FET nanobiosensors
… limitation. Our goal has been to explore novel electrical pathways for circumventing the loss of electrostatic effects: towards improving the dielectrophoretic separation of sub-micron colloids, or the mitigation of EDL shielding for improved label-free electrical detection of analyte molecules …
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Molecular Sensors at the Nanoscale: Modeling and Technology
L'abstract è presente nell'allegato / the abstract is in the attachment