Skip Navigation

BBDL Members

Skip Side Navigation

Graduate Students

Devin Laurence


Devin Laurence is a mechanical engineering Ph.D. student in the BBDL at the University of Oklahoma. His research involves integrating computational and experimental methods for understanding the tricuspid heart valve function. After completing his Ph.D., Devin plans to pursue a post-doctoral position and eventually become a faculty member with an emphasis in cardiovascular biomechanics. In his free time, he enjoys spending time with Bob, his new kitten.

Sergio Pineda Castillo


Sergio Pineda is a Ph.D. student with experience in tissue engineering research and data management for oncology clinical trials. He obtained his bachelor’s degree in Biomedical Engineering at Universidad Manuela Beltrán (Bogotá, Colombia). Sergio seeks to perform translational research in tissue engineering and wants to pursue a career in industry, focused on addressing critical medical needs. In his free time, Sergio enjoys reading, playing the guitar and practicing tennis.

Colton Ross


Colton Ross is a M.S. student studying mechanical engineering in the Accelerated BS/MS program. In the BBDL, Colton’s research involves mechanical characterizations of heart valve structures. Specifically, his research project involves analysis of the chordae tendineae of the atrioventricular heart valves. Upon completing his thesis and receiving his MS, Colton plans to pursue a Ph.D. to continue performing research in the field of biomedical engineering. In his future Ph.D. research and career (in either academia or industry), Colton wants to focus on the development and improvement of medical devices or limb prosthesis. Outside of his coursework and the BBDL, Colton enjoys playing guitar, going to concerts, and playing video games with his friends.

Luke Whitney


Luke Whitney is pursuing his master’s degree in mechanical engineering at the University of Oklahoma. He conducts research under Dr. Chung-Hao Lee in the Biomechanics and Biomaterials Design Lab with a current focus in computer modeling of atrioventricular heart valves. He spent last summer researching this area at Iowa State University through a research internship. Luke enjoys reading in his free time. He plans to graduate in May 2020 and use his design and modeling experience in industry.

UG Students in the Accelerated BS/MS Program

Grace Duginski


Grace Duginski is a senior studying biomedical engineering at the University of Oklahoma. She is a national merit scholar from Oklahoma City. In Dr. Lee’s lab, she is helping with the biaxial testing of atrioventricular heart valves. Outside of classes, she enjoys going to concerts, reading, hanging out with friends, and going on road trips. On campus, she is also involved in the Honors College and the Union Programming Board. Upon completing her bachelor’s degree, she plans to pursue a master’s through the Accelerated BS/MS program at OU.

Luke Hudson


Luke Hudson is undergraduate mechanical engineering student in the Accelerated BS/MS program. His research includes the microstrucutral and mechanical characterization of heart valve leaflets, as well as biomaterials utilized in the fabrication of bioprosthetic heart valves. Luke plans to complete his M.S. in mechanical engineering at the University of Oklahoma before pursuing a Ph.D. in biomedical engineering in hopes to continue his research in academia. He plans to further investigate methods and materials that could improve the functionality and life-cycle of replacement heart valves during his Ph.D. research. Apart from the BBDL and his academic studies, Luke enjoys skiing, hiking, a reading in his free time.

Undergraduate Students

Michael Barber


Michael Barber is a sophomore studying biomedical engineering at the University of Oklahoma.

Katherine Casey


Katherine Casey is an undergraduate student at the University of Oklahoma studying biomedical engineering. She works on biaxial testing of heart valve leaflets in Dr. Lee’s lab. Previously, she has worked in neuroscience labs at UTSW and UAB. Originally from Dallas, Texas, she just moved to Birmingham, Alabama, before attending college. Throughout college, she would like to continue pursuing research. After graduating, she plans to attend medical school. Outside of school, Katherine enjoys spending time with friends, skiing, and watching TV and movies.

Allyson Echols


Allyson Echols is a junior majored in electrical engineering at the University of Oklahoma. She is originally from Houston, Texas and works in the biaxial testing group in Dr. Lee’s Lab. After graduating, Allyson plans to attend medical school to become a surgeon.

Hailey Fisher


Hailey Fisher is a junior majoring in chemical engineering at the University of Oklahoma. In the BBDL, she focuses on the design and construction of an in-vitro flow loop for intracranial aneurysm blood flow replication. She also makes aneurysm phantoms for use with a particle image velocimetry system. Outside of the lab, her hobbies include gardening and birdwatching.

Cortland Johns


Cortland Johns is a junior pre-medicine student majoring in mechanical engineering at the University of Oklahoma. She is a national merit scholar from Bettendorf, Iowa. Cortland is currently working on the heart valve biaxial testing project, specifically assisting the data driven testing project. In the past, Cortland worked on the regional testing, layer testing, and Langendorff teams. Cortland is also a Fall 2018 MRF recipient. She is a member of the Tau Beta Pi and Pi Tau Sigma honor societies, and she is a certified pharmacy technician. Cortland plans to attend medical school and pursue a career in surgery.

Keely Laurence


Keely Laurence is a freshman studying biomedical engineering at the University of Oklahoma. While at college, she would like to be actively involved in research. Keely enjoys spending time with her friends, taking dance classes, and tending to her succulents during her free time. 

Brennan Mullins


Brennan Mullins is a sophomore studying mechanical engineering at the University of Oklahoma.

Scott Ritzmann


Scott Ritzmann is an undergraduate student at the University of Oklahoma studying Chemical Engineering. He is originally from Galveston, Texas where he lived with his parents, brother, and two dogs. In the BBDL, he assists with the in-vitro flow loop design project

Steven Trellis


Steven Trellis is an undergraduate student at the University of Oklahoma studying Aerospace Engineering. He is working on the design and construction on the in-vitro flow loop for intracranial aneurysm blood flow replication. He is planning on pursuing a masters degree and eventually wants to seek a Ph.D. to become a professor at a university. Outside of school Steven enjoys backpacking, reading, and playing guitar. 

Payton Woolard


Payton Woolard is a sophomore pursuing a degree in chemical biosciences at the University of Oklahoma. He conducts research as a part of the Biomechanics and Biomaterials Design Lab under Dr. Chung-Hao Lee. His primary focus is on the development of novel treatment devices for aneurysms in the brain using shape memory polymers. Outside of the lab, he is the historian of the American Indian Science and Engineering Society. Payton plans to graduate May of 2022 and pursue a masters degree at the University of Oklahoma, eventually obtaining a PhD to continue working on biomedical research.

Lab Alumni

Postdoctoral Fellow

Dr. Anju Babu (Assistant Professor, National Institute of Technology Rourkela , 2017-2018 in BBDL)

Graduate Researchers

Devin Laurence (ME M.S. - Spring 2019, now PhD student at BBDL)

Robert Kunkel (ME M.S. - Spring 2019, now at Sandia National Lab)

Samuel Jett (ME M.S. - Spring 2019, now at Modulated Imaging Inc.)

Undergraduate Researchers

Ean Beyer (BME B.S., Spring 2017-Fall 2018 in BBDL)

Ryan Bodlak (ME M.S. Program, Spring 2018 in BBDL)

Lauren Evans (ME B.S., Spring 2018-Spring 2019 in BBDL)

Katherine Kramer (BME B.S., Spring 2017-Spring 2019 in BBDL, now at Virginia Law School)

Jonathan Henck (ME B.S., Spring 2018 in BBDL)

McKenzie Makovec (ChemE B.S., Spring 2017-Spring 2018 in BBDL)

Wyatt Maney (ME M.S. Proram, Spring 2018 in BBDL)

Mark Means (ME B.S., Summer 2017-Spring 2018 in BBDL)

Keaton Mullinex (ME M.S. Program, Fall 2017-Spring 2018 in BBDL)

Jacob Richardson (ChemE B.S., Spring 2018-Fall 2018 in BBDL)

Donnie Robinson (ME B.S., Spring 2017-Spring 2018 in BBDL)

Orhan Roksa (ME M.S. Program, Fall 2016-Spring 2017 in BBDL)

Joshua Scherrer (ME B.S., Fall 2017-Spring 2018 in BBDL)

Zach Scheurmann (ME B.S., Fall 2017-Fall 2018 in BBDL)

Octavio Serrano (ME B.S., Spring 2017-Spring 2018 in BBDL)

Matthew Solcher (ME B.S., Fall 2017-Spring 2018 in BBDL)

Zach Smalling (ME B.S., Fall 2018 in BBDL)

Yung-Te (Daniel) Tsai (ME B.S., Fall 2018-Spring 2019 in BBDL)

Visiting Students

Chia-Lun Chao (ME M.S. from National Taiwan University, Taiwan, Fall 2018 in BBDL)