Our Team

Principal Investigator


Jonathan Schneck, M.D. Ph.D.

Jonathan Schneck (Professor of Pathology, Medicine and Oncology) received his M.D. Ph.D. in Immunology from the Albert Einstein College of Medicine. After completing his degree, Dr. Schneck trained in Pediatrics at the Children’s Hospital National Medical Center in Washington DC. From there he went to the National Institute of Allergy and Immunology at the NIH in Bethesda and did his postdoctoral training at the Laboratory of Immunology. He joined the faculty at JHMI in 1990 as a junior faculty and is currently a Professor in Pathology, Medicine and Oncology. His lab is focused on T cell immunology in the Department of Pathology. When not in lab, Dr. Schneck is a family man with 5 children. Dr. Schneck enjoys skiing and photography.

Research Associates


Joan Glick Bieler, Ph.D.

Joanie received her Ph.D. in hematology from the City University of NY. Next, she did a post-doc in viral oncology investigating early onco-genes at Memorial Sloan Kettering. After a career detour which included teaching, child rearing and baking, Joanie joined the Schneck lab where she concentrated on mechanisms of TCR/MHC/peptide interaction and the dynamics of the immune response and helped develop the protocols used in enrichment and expansion by aAPC. After a short hiatus, Joanie has returned to apply some of the lab’s methodologies to clinical problems of transplant rejection and infection following immune-suppression. Joanie spends most of her time outside of lab either with family or baking. Sometimes the lab benefits from her baked goods production.

Shweta Singh

Postdoctoral Fellows


Shuyi Li, Ph.D.

Shuyi Li is a postdoctoral fellow. She received her Ph.D. in Physical Chemistry from the National Center of Nanoscience and Technology of China. Her research mainly focuses on developing nanoparticle and hydrogel platforms for generating and expanding tissue resident memory T cells for cancer immunotherapy. Outside of the lab, Shuyi likes cooking, baking, and watching movies.

Graduate Students


Natalie Livingston

Natalie Livingston is a sixth year Biomedical Engineering Ph.D. student. She obtained her B.S. in Bioengineering from the University of Maryland College Park. She is interested in developing biomaterials-based systems for the activation of T cells. Outside of the lab, she enjoys hiking, reading, listening to podcasts, and watching classic movies

Mary Omotoso

Mary Omotoso is a sixth year Biomedical Engineering Ph.D. student. For her undergraduate studies she attended North Carolina A&T State University, where she received a B.S. in Bioengineering. Her research focuses on metabolic manipulation of CD8+ T cells for productive expansion. She also studies biomaterial-based platforms for expansion of CD8+ T cells. When she is not in lab or spending time with her family, she enjoys reading, writing music, and trying new outdoor activities.

Joseph Choy

Joseph Choy is a fourth year Materials Science & Engineering Ph.D. student. He obtained his B.A.Sc. in Materials Science & Engineering from the University of Toronto with a minor in Bioengineering. He is interested in T cell mechanotransduction and immunometabolism through biomaterial interactions. In his free time, he enjoys hiking, cooking, and photography.

Sydney Shannon

Sydney Shannon is a fourth year year Biomedical Engineering PhD student. For her undergraduate studies she attended the University of Rochester, where she received a B.S. in Biomedical Engineering and a minor in Chemical Engineering. She is interested in the realm of immunoengineering with a focus on next generation artificial antigen presenting cells (aAPCs). Outside of lab, she enjoys swimming, skiing, and CrossFit!

Si-Sim Kang

Si-Sim Kang is a fourth year Pathobiology Ph.D. student. She obtained her Bachelor’s degree in life science and a Master’s degree in immunology from National Taiwan University. She is interested in T cell-mediated caner immunotherapy. In her free time, Si-Sim enjoys reading, hiking, traveling and playing piano.

Niklas Bachmann

Nik Bachmann is a fourth year Pathobiology PhD student. Before Hopkins, he graduated from the TU Delft and Erasmus University Rotterdam in the Netherlands with a BSc in Nanobiology, and worked as a lab tech in Tokyo and Chicago. Co-mentored by the Schneck and Siliciano labs, he explores possible applications of the nanoparticle platform in the context of HIV infection. Outside of lab, he is usually cooking, hiking or attempting to keep his dog Baloo out of trouble.

Mara Lanis

Mara Lanis is a third year Biomedical Engineering PhD student. She graduated from The University of Rochester in 2017 with a B.S. in Biomedical Engineering and worked as a Research Technologist at Hopkins for 3 years before starting her graduate school education. Her work focuses on manipulating T cell differentiation pathways using engineered nanoparticle platforms. When she isn’t in lab, Mara enjoys listening to podcasts, traveling all around the world with her fiancé, and playing with her two cats.

Emily Ariail

Emily Ariail is a second year Biomedical Engineering PhD student. She previously attended the University of South Carolina where she received a B.S. in Biomedical Engineering. Her interests lie in the field of immunoengineering with a current focus on modulating the immune response through biomaterial and protein engineering strategies. Outside of lab, she enjoys painting, exploring new places, and playing pickle ball.

Manav Jain

Manav Jain is a second year Biomedical Engineering PhD student. He received his B.S. in Biomedical Engineering from Georgia Tech with a minor in Materials Science. He is interested in modulating and engineering T cells by designing hydrogel and nanoparticle-based materials. Outside of the lab, he enjoys running, listening to music, and exploring Baltimore.

Research Associates


Undergraduate Students


Maya Zhang

Lab Alumni


Past Graduate Students

Ariel Isser, Ph.D. – Regeneron
Worarat (Pan-am) Chaisawangwon, Ph.D. – BioNTech
Gary (Hanzhi) Wang, M.S. – University of Pennsylvania
Ami Bessell, Ph.D.
John Hickey, Ph.D. – Stanford University
Yen-Ling Chiu, M.D. Ph.D. – Far Eastern Memorial Hospital
Tarek Fahmy, Ph.D. – Yale University
Alyssa Kosmides, Ph.D. – FDA
Jessica Lee, Ph.D. – Syneos Health Consulting
Yu “Matt” Li, Ph.D. – Beckman Coulter
Karlo Perica, M.D. Ph.D. – Memorial Sloan Kettering Cancer Center
Bo-Yi Sung, M.D. Ph.D. – National Defense University (Taiwan)
Tonya Webb, Ph.D. – University of Maryland School of Medicine

Past Post-Doctoral Fellows

Bracha Erlanger Avigdor Ph.D. – Johns Hopkins University
Malarvizhi Durai, Ph.D. – Mallinckrodt Pharmaceuticals
Christian Shuetz, Ph.D. – Paul-Ehrlich-Institut

Past Fellows

Ted Kouo, M.D. Ph.D.
Joseph Sabatino Jr, M.D. Ph.D. – University of California, San Francisco
Juan Varela, M.D. Ph.D. – NexImmune

Past Research Associates

Hajin Sim
Shannon Storms
Sebastian Salathe – University of Kansas Medical Center
Nkay Uzoukwu
Joby Matthew
Kristy Chu – Miltenyi Biotec
Carl Haupt – The University of Queensland-Ochsner School of Medicine
Aaron Selya – Philadelphia Distillers

Past Assistant Professors

Mathias Oelke, Ph.D. – NexImmune

Past Undergraduate Students

Gohta Aihara
Hajin Sim
Sayantika Roy
Emma Elias
Anna Chen – Johns Hopkins University
Kayla Gee – UC Irvine
Kevin Necochea – Johns Hopkins University
Leah Sibener – 3T Biosciences
Andy Tu – MIT
Fernando Vicente – Johns Hopkins University
Jae Wook Chung – Johns Hopkins University