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.
Results
Showing 1 to 20 of 145 for “"microelectrode"”.
-
Brain microelectrode array systems
New methods for manufacturing microelectrode array assemblies, passive devices designed for intracortically recording brain activity in nonhuman primates, were developed and explored. Wire electrical discharge machining (EDM), chemical etching, micromilling, parylene deposition, and laser ablation …
-
MICROELECTRODE ARRAY FOR CAPACITIVE TRANSDUCTION OF RETINAL RESPONSES
… of information by networks of neurons, microelectrode arrays (MEAs) have been developed and applied, but evolving scientific questions and biomedical applications require higher density sampling and wider spatial coverage. The integration of 3D electrodes can provide closer contact with …
-
Three-Dimensional Microelectrode Array for Recording Dissociated Neuronal Cultures
… and fluidically active three-dimensional microelectrode array (3D MEA). The 3D MEA consists of a stack of individually patterned thin films that form a cell chamber conducive to maintaining and recording the electrical activity of a long-term three-dimensional network of rat cortical …
-
Alternating Current Electroosmotic Micropumping Using A Square Spiral Microelectrode Array
… computer simulation model. The device SP-1 is a microelectrode array which uses the principal of AC electroosmosis (EO), ions driven along microelectrode surfaces by coulomb forces produced by tangential electric fields. These ions, when driven, induce a net fluid motion due to viscous drag …
-
Functional and Categorical Analysis of Waveshapes Recorded on Microelectrode Arrays
… cell cultures grown on substrate integrated microelectrode arrays (MEAs) generate spontaneous activity that can be recorded for up to several weeks. The signature wave shapes from extracellular recording of neuronal activity display a great variety of shapes with triphasic signals …
-
Improved Fabrication and Quality Control of Substrate Integrated Microelectrode Arrays
… neuronal networks cultured on photoetched multimicroelectrode plates (MMEPs) offer great potential for use in studying neuronal networks. However, there are many problems associated with frequent, long-term use of MMEPs. The major problems include (1) polysiloxane insulation deterioration and …
-
Listening to neurons - development and understanding of microelectrode arrays (MEA's) systems
This thesis is about the development of microelectrodes array system (MEAs), the simulation of the neuron and the recording to the living neural network. We cultured the nerve cells of rat inside a container called 'neural bathtub' and guided them to form predetermined network (Jude pattern) with …
-
Design, fabrication, and evaluation of a carbon fiber polarographic oxygen microelectrode
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
-
Optimization of Cell Culture Procedures for Growing Neural Networks on Microelectrode Arrays
… updated and complete procedures for use with microelectrode array (MEA) recording technology. Specific cell culture protocols, contamination prevention and control, as well common problems encountered within the cell culture facility, are discussed. This volume offers value and utility to the …
-
Graphene Microelectrode Arrays to Combine Electrophysiology with Fluorescence Imaging of Amyloid Proteins
… to be combined, a transparent graphene microelectrode array (MEA) was designed, fabricated and characterised. The active electrode site was graphene since it is electrically conductive, optically transparent and biocompatible. The graphene MEA was characterised using Raman spectroscopy …
-
Characterizing the material properties of polymer-based microelectrode arrays for retinal prosthesis
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2003.
-
Flexible microelectrode probes for scanning electrochemical microscopy – from concept to high-throughput applications
Weiche lineare Arrays aus acht individuell adressierbaren C, Au oder Ag Mikroelektroden wurden als neue Elektrochemische Rastersondenmikroskop (SECM)-Sonden entwickelt um ein Hochdurchsatz-Abrastern und -Modifizieren flacher, gekippter und gebogener Oberflächen durchzuführen. Die Arrays wurden auf …
-
Long-term characterization of the chronic dopamine microelectrode and effect of electrical conditioning
… of polyimide fused silica-encased FSCV microelectrodes have made the technique more suitable for chronic DA monitoring (months) in vivo. Methods: In this study, electrically stimulated DA signals were evoked weekly in an effort to characterize the recovery time and stability of DA …
-
Optimising Recording & Stimulation Performance of Neuronal Microelectrode Arrays through Macroporous Conducting Polymer Modification
Microelectrodes are commonly used to interface with electrically active cells, such as neurons (typically as an array of microelectrodes) allowing for their monitoring (recording) and manipulation (stimulation). Recent trends towards smaller electrodes for improved spatial resolution have revealed …
-
Technologies for and Electrophysiological Studies of Structured, Living, Neuronal Networks on Microelectrode Arrays
We also recorded neurons patterned by photoresist image transfer and found patterned neurons capable of firing action potentials. Their firing depended on neuronal communication as action potentials were suppressed by high magnesium media. In addition, we found that network activity depended on …
-
Surface recordings of evoked field potentials from the cerebellum with a flexmea microelectrode array
… field potentials were recorded with a FlexMEA microelectrode array from the pial surface of the paramedian lobule. The peripheral stimulation showed that the mossy and climbing fiber field potentials evoked through intramuscular stimulation were consistent with those of the literature. These …
-
Microelectrode Array Modeling of Genetic Neurological Disorders in the Era of Next Generation Sequencing
… of the intact brain. CNNs plated onto multi-well microelectrode arrays (CNN-MEAs), which capture extracellular activity of electrically active cells, therefore offer a particularly appealing cellular system for the investigation of genetic variants that cause neurological disorders. </p><p>In …
-
A novel polymeric microelectrode array for highly parallel, long-term neuronal culture and stimulation
… we developed a scalable, all-organic 3D microelectrode array technology. The cheap, disposable arrays would be integrated into a fixed stimulation and imaging setup, potentially amenable to automated handling and data analysis. A combination of activity-dependent plasticity, made possible …
Page 1 of 8