
JEFF MARTELL
ASSISTANT PROFESSOR
B.A. 2009, Northwestern University
Ph.D. 2015, Massachusetts Institute of Technology
Poctdoctoral Researcher at University of California, Berkeley, 2015 – 2019
Jeff was born and raised in Chicago, and he was an undergraduate at Northwestern, where he did research in the group of Rick Silverman on organic chemistry, medicinal chemistry, and enzymology. Jeff did his PhD in Chemistry at MIT in the group of Alice Ting, where he used protein engineering and directed evolution to create new tools for studying cell biology. Inspired by the idea of creating protein-mimicking cavities in synthetic materials, he did postdoctoral research at UC Berkeley in the group of Jeff Long, where he studied diamine-appended metal–organic frameworks (MOFs) for cooperative CO2 capture and developed a chiral MOF for enantioselective recognition. At UW-Madison, Jeff is excited to build a team of interdisciplinary researchers that draws from biochemistry, organic chemistry, inorganic chemistry, and materials to create enzyme-mimicking catalysts.
POSTDOCTORAL RESEARCHERS
Minjong Lee
Position title: Joined 2025
Email:
mlee539
Minjong received both his B.S. and Ph.D. in Materials Science and Engineering from Pohang University of Science and Technology (POSTECH). His Ph.D. research focused on enhancing the synergistic interplay between two distinct sequence-controlled biopolymers—peptides and nucleic acids—along with their biomedical applications. Outside of the lab, Minjong enjoys working out, exploring nature, and discovering good restaurants.
GRADUATE STUDENTS
Caleb Cox
Position title: Joined 2020
Email:
cacox2
Caleb has a B.S. in Chemistry and Mathematics from the University of North Carolina at Chapel Hill. As an undergraduate, he worked with Professor Abigail Knight synthesizing peptide-polymer amphiphiles and studying structural changes due to self-assembly. In his free time, Caleb enjoys cooking, playing video games, and hiking.
Ethan Hartman
Position title: Joined 2021
Email:
emhartman
Ethan received his B.S. in chemistry from Washington and Lee University. His undergraduate research focused on examining the process of RNA translation in yeast. He also spent a summer REU at University of Illinois Urbana-Champaign doing organic synthesis. Outside of lab, Ethan enjoys going to various Badgers sporting events on campus especially wrestling.
Eli Mertick-Sykes
Position title: Joined 2022
Email:
merticksykes
Eli received his B.S. in Biochemistry and Molecular Biology from the Pennsylvania State University. His undergraduate research focused on phase-separating proteins and methods to detect liquid-liquid phase separation in cells. Outside of the lab, he enjoys rock climbing, listening to music, writing, and exploring the surrounding area.
Jingfei Qiu
Position title: Joined 2024
Email:
jqiu86
Jingfei has a B.S in Chemistry from Southern University of Science and Technology. She has previously worked under professor Xumu Zhang in developing ligands for gold-catalysis and optimizing the synthetic route for anti-virus drug production. When Jingfei is not in the lab, she enjoys painting and reading books.
Zach Ziolkowski
Position title: Joined 2022
Email:
zbziolkowski
Zach has a B.S. in Chemistry from The College of New Jersey. As an undergraduate, he worked with Dr. Levi Ekanger designing an inhibitor assay for a key bacterial stress response metalloprotein and synthesizing model complexes to study the iron coordination chemistry of cysteine analogues. In his free time, Zach likes to play video games, make music, and spend time with friends.
UNDERGRADUATE STUDENTS
Ruda Lee
Position title: Joined 2025
Email:
rlee77
Ruda is an undergraduate majoring in Chemistry and Data Science. In his free time, he spends time playing the drums and hanging out with his friends.
Mia Lor
Position title: Joined 2023
Email:
mdlor
Mia is an undergraduate working towards her B.S. in biochemistry and computer science. During her free time, she loves playing her viola, baking, and (making very poor attempts at) playing tennis.
Kimaya Soin
Position title: Joined 2026
Email:
ksoin
Kimaya is an undergraduate majoring in chemistry and biochemistry with a certificate in health policy. She enjoys rock climbing, fundraising for celiac disease, and teaching others organic chemistry in her free time.
Zhaoyang Xiang
Position title: Joined 2025
Email:
zxiang39
Zhaoyang Xiang (Young) is a biochemistry undergraduate and currently working with Zach Ziolkowski on the project of enzyme evolution. When he’s not in the lab, Young loves to spend some time playing saxophone and video games.
Nano Young
Position title: Joined 2025
Email:
lyoung32
Nano is an undergraduate majoring in biochemistry and working with Eli Metrick-Sykes. Outside of the lab, Nano enjoys acting and illustration.
FORMER POSTDOCTORAL RESEARCHERS
Xu Zhou
Position title: Former Postdoc, 2024
Email:
xzhou459
Current Position: Assistant Professor, Nanjing University
PH.D. PROGRAM ALUMNI
Mario Cribari
Position title: Former Graduate Student, Ph.D. 2024 Scientist III, Clinical Research Group at Thermo Fisher (PPD)
Ashley Ogorek
Position title: Former Graduate Student, Ph.D. 2024
Current Position: Postdoc, University of Chicago
Edward Pimentel
Position title: Former Graduate Student, Ph.D. 2024
Current Position: Postdoc, Stanford University
MASTERS PROGRAM ALUMNI
Leslie Acevedo
Position title: Former Graduate Student, 2025. Current position: ThermoFisher, Scientist II
Kailey Komnick
Position title: Former Graduate Student, 2024. Current Position: PhD student, Bolling lab
Lizzy Sielaff
Position title: Former Graduate Student, 2024. Current Position: Research Specialist, UW-Madison Cognitive-Communication in Aging and Neurogenic Disorders Lab
FORMER UNDERGRADUATE STUDENTS
Hassan Alkhunaizi
Position title: Former Undergraduate Student, B.S. 2022
Current Position: PhD student, Duke University, Department of Chemistry
Elliot Delfosse
Position title: Former Undergraduate Student, B.S. 2024
Current Position: Graduate Student, University of Washington
Christian Gomez
Position title: Former Undergraduate Student, B.S. 2023
Current Position: Associate Scientist, Bioconjugation at Arrowhead Pharmaceutical
Annika Hansen
Position title: Former Undergraduate Student, B.S. 2024
Current Position: MD student at Medical College of Wisconsin
Chloe Hu Pesh
Position title: Former High School Student Researcher
Current Position: Undergraduate student at Caltech
Justice Merrifield
Position title: Former Undergraduate Student (B.S. 2022) and Research Intern (2023)
Current Position: DVM/PhD student at UW-Madison
Max Unger
Position title: Former Undergraduate Student, B.S. 2023
Current Position: PhD student at University of Michigan in the Department of Chemistry
Hang Yin
Position title: Former Undergraduate Student, B.S. 2023
Current Position: Assistant scientist at Thermo Fisher Scientific
