Graduate

Wireless, Battery-Free Intraoral Deep Brain Stimulation for Trigeminal Neuralgia

This paper presents the design, development, and experimentation of a wireless, battery-free neural stimulation system utilizing an intraoral pathway for power delivery to deep brain targets for the treatment of trigeminal neuralgia. Traditional neuromodulation systems require implantable pulse generators and wired leads. This introduces surgical risks and hardware complications. To address these limitations, a resonant…

Quantifying the Impact of Cognitive Fatigue on Visual Attention and Decision-Making Performance

Several studies have demonstrated that certain types of noise exposure have a significant impact on an individual’s cognitive performance. This study aims to quantify the effect of different noise exposures on cognitive performance. A total of 15 young subjects participated in the study in a calm, relaxing environment, to prevent other stress factors from interfering…

Optimizing the Design of Ultrasound Emitters for Energy Transfer to Millimeter-Scale Implantable Devices

Wearable ultrasound emitters are used to power implanted devices or modulate neuronal function. Variation in placement of an external wearable can result in reduced efficiencies, improper stimulation of a biotarget, or inaccurate sensor readings. Using the K-Wave Toolbox in MATLAB a 10 kHz pulse was simulated to test different linear ultrasound emitter configurations were tested…

Flexible Dipole Coil Array Design for Efficient Performance of Head and Neck Imaging at 7T MRI

Dipole antennas are being widely used in ultra-high field (UHF) MRI systems due to their deeper penetration depth of the transmit magnetic field (B1). However, traditional rigid dipole designs do not conform well to the highly curved anatomical regions such as neck, wrist, shoulder, etc., resulting in reduced electromagnetic coupling in tissues, increased localized electric-field…

Immune-Active Ionic Liquid (HistaGE) for Transdermal Delivery of Histamine in Diabetic Wound Healing

Diabetic foot ulcers are difficult to heal due to impaired blood circulation, chronic inflammation, and the strong barrier function of the stratum corneum, which limits the effectiveness of topical therapies. Histamine is a vasodilatory and immune-active molecule with potential to enhance local perfusion and support tissue repair, but its therapeutic use requires a formulation capable…

Endoscopic Next Generation Tissue-Adhesive Tattoo (TAT2) Ink Delivery System

Tissue marking, or tattooing, is used during endoscopic procedures to identify lesions for follow-up and surgical resection. However, existing tattoo inks diffuse extensively, reducing the accuracy of later localization. Tissue-Adhesive Tattoo, Generation 2 (TAT2) is a novel mucoadhesive ink that improves spot containment by more than 90% compared with current clinical inks. Although TAT2 enables…

Emotion Aware Tactile Feedback for Deaf Users in Live Acoustic Environments

Individuals with profound hearing impairment often face difficulty experiencing the emotional richness of live acoustic environments such as concerts. Although assistive technologies improve communication, they frequently fail to reproduce the subtle, emotional characteristics of sound essential for a deeply immersive experience. Current haptic feedback devices typically convert sound into vibrations using a unidirectional transformation of…

Effects of Varying Spatial Disparities on Multisensory Integration During Movement Planning

Proprioception is essential for body awareness and motor planning; however, its role in multisensory integration during movement planning remains poorly understood. Most existing tests only assess conscious proprioception through position-matching and localization tasks, overlooking the role of proprioception in movement planning, which occurs at a largely unconscious level. We recently developed a method to reverse…

Development of a Multi-Point Foot Pressure Sensing System for In-Home Rehabilitation Monitoring

Home-based rehabilitation post orthopedic lower-extremity interventions is difficult to monitor objectively, as clinic-based gait labs are expensive, inaccessible for frequent use, and impractical for everyday settings. Patients also often have no clear feedback on whether they are performing prescribed exercises correctly, which may slow recovery and increase the risk of re-injury. This study aims to…

Decision Making Under Uncertainty with Information Overload

Information overload is a growing concern in manufacturing environments where operators must make rapid decisions under conditions of uncertainty, ambiguity, and escalating task demands. This study investigated how progressively degraded instructions and increasing informational load affect cognitive performance and physiological stress during a simulated assembly task. Ten participants completed a 49-step digital LEGO assembly set…