Transactions on Neural Systems and Rehabilitation Engineering

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Multi-directional Ankle Impedance During Standing Postures
In this study, we estimated the multi-directional ankle mechanical impedance in two degrees-of-freedom (DOF) during standing, and determined how the stiffness, damping, and inertia vary with ankle angle and ankle torque at different postures... Read more
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On-Chip Impedance Quantification of Parasitic Voltages During AC Electrokinetic Trapping
Monitoring the effectiveness and location of cell or particle trapping under microfluidic force fields is currently achieved by cumbersome imaging methods that require extensive microscopy to be conducted by a trained operator, with limited ability to rapidly trigger downstream decisions. We present an embedded circuit for an impedance sensor that directly interfaces to a microfluidic chip for the monitoring of cell or particle trapping based on the level and frequency response of parasitic voltage drops measured during AC electrokinetic manipulation, to enable assessment of trapping efficacy of the device geometry and to rapidly inform downstream cell separation decisions... Read more
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Validation of Polymer-Based Screen-Printed Textile Electrodes for Surface EMG Detection
      In recent years, the variety of textile electrodes developed for electrophysiological signal detection has increased rapidly. Among the applications that could benefit from this advancement, those based on surface electromyography (sEMG) are particularly relevant in rehabilitation, training, and muscle function... Read more
Articles, Published Articles
Transcranial Impedance Changes during Sleep: a Rheoencephalography Study
      Abstract Objective: To demonstrate the utility of rheoencephalography (REG) for measuring cerebral blood flow and fluid dynamics during different stages of sleep. Methods: Anteroposterior cranial electrical impedance was measured with concurrent polysomnography in a group of healthy subjects during sleep. Transcranial... Read more
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Impedance and Magnetohydrodynamic Measurements for Label Free Detection and Differentiation of E. ColiandS. AureusUsing Magnetic Nanoparticles
In this paper, we used the distinguishable surface charge and mass of different bacterial strains for label free detection and differentiation of pathogen through impedance and magnetohydrodynamic analysis. For isolation of Escherichia coli and Staphylococcus aureus, functionalized magnetic nanoparticles (MNPs) were used. Proposed method is... Read more
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Flexible Bioimpedance Sensor for Label-Free Detection of Cell Viability and Biomass
We introduce a flexible microfluidic bioimpedance sensor that is capable of detecting biomass and cell viability variations in a cell suspension. The sensor is developed on Indium Tin Oxide (ITO) coated Polyethylene terephthalate (PET) substrate and is devoid of gold,... Read more
Articles, Published Articles
μ-Foil Polymer Electrode Array for Intracortical Neural Recordings
We have developed a multichannel electrode array, termed μ-foil, that comprises ultrathin and flexible electrodes protruding from a thin foil at fixed distances. This study is an early evaluation of technical aspects and performance of this electrode array in acute... Read more