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Theses and Dissertations

MEMS

Lehigh University

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Grain Size Effects On Viscoelastic Relaxation Of Sub-Micron Thickness Fcc Metallic Films, Jeffrey Smyth Aug 2018

Grain Size Effects On Viscoelastic Relaxation Of Sub-Micron Thickness Fcc Metallic Films, Jeffrey Smyth

Theses and Dissertations

Sub-micron thickness metallic thin films are known to exhibit mechanical size effects, where the thin film mechanical behavior can differ significantly from that of a bulk version of the same material. One such mechanical behavior, and the focus of this work, is the unique thin film viscoelastic deformation response to sub-yield, low-strain stimuli in near-ambient temperature environments. In engineering components using bulk materials, strains within the elastic regime are generally considered instantaneous. It is only at higher operating temperatures that temporal deformation processes, such as creep, are considered in bulk component design. However, in Micro-Electro-Mechanical Systems (MEMS), specifically Radio Frequency ...


Development Of A Multi-Electrode Array (Mea) Based On Active Recruiting Of Cells And Formation Of Mechanically Confined Neural Networks, Tianyi Zhou Jan 2016

Development Of A Multi-Electrode Array (Mea) Based On Active Recruiting Of Cells And Formation Of Mechanically Confined Neural Networks, Tianyi Zhou

Theses and Dissertations

Multi-Electrode Array (MEA) systems have been widely used, for decades, in neuroscience research, such as the detection of neuroactive compounds and the study of neuronal electrophysiology and communication. Accurate positioning of neurons on electrodes enables the recording from and stimulation of specified individual neurons on a MEA. Various cell patterning techniques, integrated with MEAs, have been developed to ensure neuron-electrode correspondence, which is the capability that most conventional MEAs lack, because of the random distribution of neurons with respect to electrodes.A novel multi-electrode array system has been designed and developed for active recruitment of neurons on electrodes and the ...


Microelectromechanical Actuator And Sensor System For Measuring The Mechanical Compliance Of Biological Cells, Markus Hans Gnerlich Jan 2012

Microelectromechanical Actuator And Sensor System For Measuring The Mechanical Compliance Of Biological Cells, Markus Hans Gnerlich

Theses and Dissertations

No abstract provided.