The team

Three Meyerhoff Scholars, three doctorates, one firm

John, Quentin, and Yves met in UMBC's Meyerhoff Scholars Program, went on to doctorates at Johns Hopkins, UC Irvine, and Michigan, and to work at Google X, Walter Reed, George Mason, and JuneBrain. RNS is what happens when they take on a device together.

Trained at
  • UMBC
  • Johns Hopkins
  • UC Irvine
  • Michigan
  • Northwestern
Experience at
  • Google X
  • Walter Reed
  • George Mason
  • JuneBrain
  • UNC–Chapel Hill
John Rattray, PhD

John Rattray, PhD

Senior Wearable Specialist, JuneBrain

A designer, developer, and innovator in the biomedical space, with a particular focus on wearable technology.

John graduated from the University of Maryland, Baltimore County as a Meyerhoff Scholar in 2015 with a B.S. in Computer Engineering, then received the GEM Fellowship and completed both his M.S.E. and Ph.D. in Electrical and Computer Engineering at Johns Hopkins University in 2017 and 2024.

During his doctoral studies he founded and served for two years as CEO of Sparkwear Inc., a company built around his patented wearable technology designed to increase safe interpersonal interaction and engagement in physical spaces. His dissertation research centered on developing a novel multisensor wearable system capable of noninvasively collecting a suite of biosignals and biomarkers and pairing them with AI models for continuous blood pressure estimation. That work led to a pending patent, multiple publications, and is detailed extensively in his thesis, Continuous Health Monitoring with Distributed Networked Wearables.

John currently works at JuneBrain Inc. as their Senior Wearable Specialist, where he designs a next-generation wearable retinal scanner used to measure and monitor retinal tissue for the assessment of neurological diseases. His work integrates advanced sensing, embedded systems, and biomedical engineering to support early detection and continuous monitoring of neurodegenerative conditions.

  • UMBC B.S. Computer Engineering Meyerhoff Scholar
  • Johns Hopkins M.S.E. and Ph.D., Electrical & Computer Engineering GEM Fellow
  • Sparkwear Inc. Founder and former CEO
  • JuneBrain Senior Wearable Specialist
Quentin Sanders, PhD

Quentin Sanders, PhD

Bioengineering & Mechanical Engineering, George Mason University

A roboticist and biomedical engineer working at the intersection of wearable robotics, sensing, and neurorehabilitation.

Quentin holds a joint appointment in the Department of Bioengineering and the Department of Mechanical Engineering at George Mason University’s College of Engineering and Computing.

He received his B.S. in Mechanical Engineering from the University of Maryland, Baltimore County in 2015, then completed his M.S. and Ph.D. in Mechanical Engineering at the University of California, Irvine, in 2018 and 2020. His doctoral research, detailed in his thesis Hand Rehabilitation After Stroke: Understanding and Optimizing the Usage of Wearable Robotic Technologies, focused on the design and application of wearable robotic devices to support hand recovery following stroke.

Prior to joining Mason, Quentin spent a year at X, the moonshot factory (formerly Google X), working on a system combining robotics and textiles to aid individuals with mobility impairments, and completed a postdoctoral fellowship in the Joint Biomedical Engineering Program at the University of North Carolina–Chapel Hill and North Carolina State University, where he developed rehabilitation robotic devices to assess somatosensory function in individuals with neurological injuries.

At George Mason he leads the EMPOWER Laboratory — Enabling Mobility through Patient-Oriented Wearables and Robotics — which develops robotic and prosthetic devices for individuals with neurological injuries or amputations. Alongside his academic research, he co-founded RNS LLC.

  • UMBC B.S. Mechanical Engineering Meyerhoff Scholar
  • UC Irvine M.S. and Ph.D., Mechanical Engineering
  • Google X Robotics and textiles for mobility impairment
  • UNC–Chapel Hill / NC State Postdoctoral fellow Joint Biomedical Engineering Program
  • George Mason Bioengineering & Mechanical Engineering Leads the EMPOWER Laboratory
Yves Nazon II, PhD

Yves Nazon II, PhD

Researcher, Walter Reed National Military Medical Center

An engineer by training and global citizen by choice, with a deep-seated interest in health-related technologies.

Yves received his PhD in mechanical engineering from the University of Michigan, where he focused on identifying properties of the human knee so that those properties could be recreated in wearable robots such as prosthetics and exoskeletons, giving them more human-like behavior. He has also obtained master’s and bachelor’s degrees from Northwestern University and the University of Maryland Baltimore County respectively.

Yves is currently a researcher at Walter Reed National Military Medical Center, where he studies biomechanical-based outcomes for soldiers who have experienced extremity trauma.

He is also a policy fellow at the Open Source Hardware Association, where he creates strategies and policies for standardizing the process of creating open source medical devices.

  • UMBC B.S. Mechanical Engineering Meyerhoff Scholar
  • Northwestern M.S.
  • University of Michigan Ph.D., Mechanical Engineering
  • Walter Reed Researcher, biomechanical outcomes
  • Open Source Hardware Association Policy Fellow

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