Sarah Buchanan is an undergraduate student in Biomedical Engineering at Texas A&M University who joined the Optical and Bio-Sensing Laboratory in Spring 2025. Her work focuses on the development and use of both human- and phantom-arm/finger systems for testing and validating wearable sensing technologies. She contributes to experimental data collection using wearable biomedical devices and supports the evaluation of sensor performance in controlled testing environments. Sarah also works on integrating Arduino-based sensor systems, fabricating electrodes, and designing molds and experimental components using SolidWorks. Through this work, she is developing hands-on experience in biomedical device prototyping, experimental design, and physiological data collection