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John Seymour

PI, Assoc. Prof. at UTHealth in Neurosurgery, Adjunct Assoc. Prof at Rice in Electrical & Computer Eng

john.p.seymour at

TBBL is laser focused on the translation of implantable sensory technology in humans including brain-computer interfaces. More broadly, my interests are in the area of advanced neurotechnology for clinical use or neuroscience. My research has addressed topics including reduced tissue reactivity and improved electrical, mechanical, and optical characteristics of bioelectronic devices. I earned my B.S. with Honors in Engineering Physics from (the) Ohio State University and my M.S. and Ph.D. in Biomedical Engineering from the University of Michigan. My industry experience includes working at Battelle Memorial and later NeuroNexus as a Principal Scientist. My other academic experience includes serving as research faculty in the Department of Electrical Engineering at the University of Michigan.

Outside work and family, I’m trying to improve my mountain biking, fishing, photography, gardening skills. A long way to go!


Amada Abrego Mancilla

Lab Manager, Lab Engineer

Amada.M.AbregoMancilla at

I joined the lab in January 2020 as a lab Engineering Assistant. During my Master’s in Science in Electrical and Computer Engineering from Rice University, I studied the vestibular contributions to the navigational circuit at Dora Angelaki and David Dickman’s labs. I also received a Master’s in Bioengineering from Rice University and a BS in Biomedical Engineering from Monterrey Tech, Mexico.

When not doing science, I love to bake and pamper my dogs.


Wasif Khan

Postdoctoral Fellow

Wasif.Khan at

Hello! I come from Bangladesh, a small and very beautiful green country in Asia, where I completed my BS from Military Institute of Science and Technology in 2011. Later, I got my MS and Ph.D. in Electrical and Computer Engineering from Michigan State University in 2016 and 2020, respectively. As a graduate student, I developed neural interfaces for optogenetic applications. As a postdoc at UTHealth, I am focused on implementing a translational approach for a novel Brain-Computer Interface towards the potential treatment of neurodegenerative diseases such as epilepsy.

I am a huge fan of movies of all languages! In addition, my interest dives deeper into photography, music, and cooking!


Mohammad Ghajar

Postdoctoral Fellow

My research area of interest is wearable and implantable biodevices and flexible bioelectronics. Flexible neural electrodes is a cutting-edge technology that can improve human life significantly. I joined TBBL to generally develop long-term, high-density recording and stimulation electrodes for the treatment of diseases. More specifically, I'm here to extend electrode sensor longevity when implanted. I am excited about to make my impact on human life and play my role in health promotion by relying on my background coming from a wide range of interdisciplinary fields such as mechanical engineering, chemical and material science, robotics and control, and computational modeling with both theoretical and practical perspectives.


Rabiul Islam

Postdoctoral Fellow

I received my Bachelor of Science (B.Sc) and the Master of Science (M.Sc) degree in computer science and engineering from the University of Rajshahi, Bangladesh, in 2010 and 2011, respectively. From October, 2014 to September 2015, I was a research student at the dept. of Electrical and Information Engineering, Tokyo University of Agriculture and Technology (TUAT), Tokyo, Japan. I received my PhD degree in 2018 from the Tokyo University of Agriculture and Technology, Tokyo. From October, 2018 to March, 2019, I joined as a Visiting Researcher at the Tokyo University of Agriculture and Technology. In April 2019, I joined as an assistant Professor (Research) in the Institute of Global Innovation Research, Tokyo University of Agriculture and Technology. My research expertise focuses on biosignal (especially electrophysiological monitoring methods) processing, which unify various concepts, including signal processing, machine learning, mathematical engineering, and method of statistics. The goal of my research is to identify engineering solutions in biosignals based on advanced AI techniques for precision treatment of brain diseases.


Xiaokang Bai

Research Engineer

I completed my BS in Physics from China and later came to the US to finish my MS study in Bioengineering from Northeastern University. Before joining TBBL, I had multiple research and working experiences from university labs, medical device company, and hospital. With the strong interests in developing novel BioMEMS devices and systems by adopting microfabrication and nanotechnology approaches, I feel excited to conduct scientific demonstrations and engineering realizations in nascent brain science areas with animal models and clinical trials. I am applying my physics modeling and simulation, data analytics, signal processing, and other computing skill to achieve the above goals.


Chris Wright

I earned my B.S. in Electrical Engineering with Honors from Texas A&M University, and am currently working on my M.S. in Bioengineering from Rice University. I came to TBBL with two years of research experience, with a year in wireless optogenetics and a year in materials engineering for glucose biosensors. After graduating from TAMU, I spent two years at NI (National Instruments) designing RF test hardware, such as our 6 GHz VST, 20 GHz VSG, and 26.5 GHz Switch/VNA. My research interests include RF trace integrated tests, EM simulation of neural devices, and wireless data interfaces.


When I'm not working, I'm kept busy by my wife and three pets, all with lots of energy! I enjoy playing chess, going to the movies, and light physics reading.

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Neela Prajapati

Research Engineer

I come from Bhaktapur -“ The City of Devotees”, too close to Kathmandu, the Capital of Nepal. I graduated with a PhD degree in Biomedical Engineering from Louisiana Tech University, May 2021, with core research focus on cellular neuroscience. I also have a BS and MS degree in Biomedical Engineering (BME) and two  years of teaching experience with undergrad BMEs and technicians. As a PhD student I was a part of Neuronal Network in Epilepsy and Memory Research(NeuroNEM). At TBBL, I am excited to lead a translation project on neurological tools applied to epileptogenesis diagnosis in a rodent model of refractory epilepsy.

 When I am not in lab, I play tennis or table tennis to keep my muscles and senses active. I am trying to add swimming to my new list of skill sets.