Five Johns Hopkins doctoral students have been named Siebel Scholars for 2023, an honor that reflects their exceptional academic performance and outstanding demonstrated leadership.
Since its founding in 2000, the Siebel Scholarship has been awarded to 70 Johns Hopkins graduate students. This year's recipients are among 83 honorees from top universities. They join a formidable network of more than 1,700 researchers, scholars, and entrepreneurs. Recipients receive a $35,000 award to support their final year of studies.
The 2023 Siebel Scholars are:
Tatsat Banerjee is a graduate student in the Department of Chemical and Biomolecular Engineering, working in the laboratories of Peter Devreotes and Pablo Iglesias, where he discovered one of the fundamental bases of polarity in cell migration. Banerjee demonstrated that inner membrane surface charge spatiotemporally defines the activation pattern of signal transduction pathways, which in turn regulate the dynamics of membrane protrusions. His work delineates the subcellular-scale coordination mechanism of intricate crosstalks in signaling network whose impairment often result in numerous diseases. This has led to four publications and 10 conference presentations. He previously received the Hay Graduate Fellowship and Drescher Travel Award from the Department of Cell Biology in the School of Medicine.
Banerjee is a passionate educator and strong believer of diversity and inclusion. He has trained seven undergraduate and graduate students, tutored under JHU SARE program, organized a roundtable session at ASCB|EMBO annual meeting, and a co-chaired a platform session at the BPS annual meeting. For two consecutive years, he was elected to the GRO Executive Board where he worked as the funding and administration chair and intercampus chair. Additionally, he served in the University Registrar Search Committee, PAC, ISAH Ambassador team, and Homewood Graduate Board.
As a PhD candidate in the Department of Biomedical Engineering, Savannah Est-Witte is developing next-generation polymeric particles for protein and mRNA drug delivery, with particular focus on designing more effective immunotherapies for cancer. Her research has been highly collaborative, resulting in nine coauthored manuscripts and 14 presentations across multiple institutions and disciplines. She has received several awards for her work including the National Science Foundation Graduate Research Fellowship and the ARCS/MWC Scholarship.
Outside the lab, Est-Witte is an enthusiastic learner and educator, having completed over 18 credit hours of additional coursework in public health as well as developed and instructed her own course for undergraduates. She is passionate about leadership, equity, and service, and has mentored 11 graduate and undergraduate students. She has played a leading role in the JHU BME PHD Equity, Diversity, and Inclusion committee, and is active in multiple organizations dedicated to supporting individuals from underrepresented backgrounds in science.
Justin Lowenthal began the MD-PhD program at Johns Hopkins after graduating summa cum laude from Yale in 2011, where he was awarded the Alpheus Henry Snow Prize, the top honor awarded to an undergraduate. After completing a prestigious Fellowship in Bioethics at the National Institutes of Health Clinical Center and his first two years of medical training, he embarked on collaborative PhD research in the Johns Hopkins laboratories of Sharon Gerecht and Leslie Tung. His work focused on probing the effects of oxygen on early cardiac development and on modeling the genetic heart disease arrhythmogenic cardiomyopathy, combining stem cell differentiation, three-dimensional platforms, and developmental biology techniques. He has co-authored seven book chapters, 10 scientific manuscripts, and 10 manuscripts in bioethics and health policy; has presented at more than 20 meetings; served as an inaugural JCI scholar; and received the AHA Predoctoral Fellowship in 2019.
Lowenthal has demonstrated leadership and commitment to community at every level. He works on health policy, care affordability, health equity, and social justice through national leadership roles with multiple organizations, including the advocacy organization Doctors for America, and has provided testimony in front of the Baltimore City Council, the Maryland legislature, and U.S. congressional committees. He has been a leader among medical and MD-PhD students by co-chairing multiple student groups, coordinating initiatives such as Partnering Toward Discovery, and spearheading the development of policies to improve the medical and graduate student experience, including a committee to address medical student mistreatment. He has also served the local community, particularly during the COVID-19 pandemic, and he has mentored numerous students within the laboratory as well as in medical school.
Zachary Schneiderman began his scientific career at the National Institutes of Health, where he established the first nonaffinity-based purification process for an HIV Trimer vaccine and co-led a high-throughput development team. He then pursued his PhD in the Kokkoli laboratory at the Department of Chemical and Biomolecular Engineering where he works at the forefront of both DNA and lipid nanotechnology, focusing on targeted drug and gene therapy delivery for the treatment of cancer using DNA nanotubes, liposomes, and lipid nanoparticles. This work has led to 13 co-authored publications and two patents and earned him the nanotechnology for cancer research fellowship. Since his first year in the lab, he has been the lab captain, safety captain, and recently led the "green lab" certification process.
Throughout his career, Schneiderman has shown a dedication to mentoring students including several REU and graduate students, as well as many middle school students through his work with the Breakthrough Collaborative, a non-profit dedicated to educational equity.
Melody Shao works under Biomedical Engineering Professor Rachel Karchin. Her thesis focuses on creating computational methods for immuno-oncology, and on identifying biomarkers for cancer therapeutics. She has authored eight peer-reviewed publications and a patent. Additionally, she has been selected to present in multiple conferences—of particular note, she won a Trainee Award for the 2022 Cancer Genomic Consortium Annual Meeting.
Shao's belief in bringing bench solutions to bedside inspire both her research and extracurricular endeavors. Her AI-based computational method is currently being licensed by Genetech, Inc., and she won second place in the 2019 JHGCC case competition by developing a plan for bringing a medical device to market. In BME, Shao served as the Vice-President of BME PhD Council and as a Professional Development Chair for BME EDGE.
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