Ke Xu Group


Principal Investigator

Ke Xu
xuk at

Ke Xu is an associate professor of Chemistry and a Chan-Zuckerberg Biohub Investigator at UC-Berkeley. Ke received his B.S. from Tsinghua University, did Ph.D. work with Prof. Jim Heath at Caltech, and performed postdoctoral research with Prof. Xiaowei Zhuang at Harvard University. Ke joined UC-Berkeley in 2013. His current research develops new physicochemical tools to interrogate biological, chemical, and materials systems at the nanoscale with extraordinary resolution, sensitivity, and functionality. To this end, his lab takes a multidimensional approach that integrates advanced microscopy, spectroscopy, cell biology, and nanotechnology. Ke has been named a Sloan Research Fellow, a Packard Fellow for Science and Engineering, a Beckman Young Investigator, a Pew Biomedical Scholar, and the C&EN Talented 12, and has received an NSF CAREER Award and an NIH Director's New Innovator Award.

Postdoctoral Researchers & Research Scientists

Wan Li
wl285 at

Wan obtained her bachelor and master degrees in physics from Tsinghua University. She obtained her Ph.D. degree from Cornell University, where she worked with Prof. Dan Ralph on graphene electrochemistry and spintronics. After a brief postdoc in Prof. Jay Groves' lab at UC-Berkeley, where she integrated graphene with supported lipid bilayers, she joined Xu lab and is currently a Research Scientist. She currently works on the optical characterization and chemistry of 2D materials, as well as their integration with biological samples.

Changdong He
hecd at

Changdong obtained his bachelor degree and Ph.D. degree from Peking University. He joined Ke Xu group in Fall 2021. Changdong did his Ph.D. research with Prof. Suwei Dong where he investigated the glycopeptide assembly and glycoprotein phase separation. His current interests involve investigating protein phase separation using super-resolution microscopy in vitro and in vivo.

Graduate Students

Bowen Wang
bowenwang.bioeng at

Bowen graduated from University of California, Berkeley in 2017. He joined Ke Xu Group in Fall 2017.

Bowen did his undergraduate research with Prof. Adam Arkin and Prof. Luke P. Lee, where he investigated bacterial genomic engineering and ultrafast photonic PCR. His current interests involve investigating nano-scale cellular structure using super-resolution microscopy and developing novel imaging method for biological science.

Yunqi Li
yunqili at

Yunqi graduated from Tsinghua University in 2017. She joined the Xu lab in Fall 2017.

Yunqi did her undergraduate research with Prof. Jinghong Li, where she studied graphene oxide hydrogel materials for the adsorption of water pollutants. Her current interests involve studying graphene materials using optical microscopy.

Bret Unger
b.unger at

Bret graduated from West Chester University in 2018. He joined the Xu group in Fall 2018.

Bret did his undergraduate research with Prof. Kurt Kolasinski where he investigated the formation of novel silicon nanostructures using electrochemical and laser-assisted processes. His current research interests include improving the capabilities of super-resolution microscopy as well as biological applications of super-resolution microscopy.

Ha Park
ha.park at

Ha graduated from Seoul National University in 2018.

Ha did his undergraduate research with Prof. Jwa-Min Nam, where he studied behaviors of nanostructures on supported lipid bilayers. In his work on developing logic computing platform, he established an image analysis pipeline for the system.

Alex Choi
achoi45 at

Alex graduated from the Georgia Institute of Technology in Spring 2019 with a B.S. in Chemistry. He joined the Xu Lab in Fall 2019.

Alex worked with Prof. Ronghu Wu in the Department of Chemistry and Biochemistry developing methods to study low-abundance glycoprotein using mass spectrometry. His current research interests are the development and application of microscopy techniques to study the physics of biological systems.

Sinyoung Jo
syhu7948 at

Sinyoung graduated from the Penn State University in 2021 with a B.S. in Biochemistry and Molecular Biology. She joined the Xu Group in Fall 2021.

Sinyoung worked with Cremer’s lab, where she studied the bioinorganic chemistry of lipid bilayers, and with Bull’s lab, where she studied mushroom bacterial pathogens with phage therapy. Her current research interest is the high-resolution imaging of live cells.


Michael Xiong
michael.xiong at

Michael is part of the College of Chemistry class of 2023 and is studying chemical biology. He joined the group spring of 2020.


Rui Yan
rui.yan at

Rui was a graduate student in the Xu group from 2015 to 2021, focusing on the development of functional super-resolution microscopy and its applications in biophysics and cell biology. He also studied the mechanisms of intracellular membrane trafficking and cytoskeletal organization using various fluorescence microscopy techniques. Upon graduation, he moved to Boston for a Helen Hay Whitney postdoctoral fellowship in the lab of Dr. Clifford Tabin at Harvard Medical School, investigating embryonic gut patterning through quantitative live imaging.

Kun Chen
chenk at

Kun was a postdoc in the Xu Lab from 2017 to 2021, where he led the development of single-molecule displacement/diffusivity microscopy and excitation spectral fluorescence microscopy, and their applications in cell biology. Kun is starting his new lab at University of Electronic Science and Technology of China.

Limin Xiang
lxiang2 at

Limin was a postdoc in the Xu Lab from Aug 2016 to Mar 2021. He developed single-molecule displacement/diffusivity mapping (SMdM) technique, extended spectral SMLM to surface systems, witnessed Ke’s tenure promotion, and became a father in the meantime. He is now a professor at Wuhan University in China. Limin left the lab during the COVID-19 pandemic, and he hopes to come back to say a “true” goodbye to everyone soon in the future!

Jeongmin Kim
jmk at

Jeongmin was a postdoc in the Xu Lab from 2019 to 2020, where he led the development of oblique-plane single-molecule localization microscopy. Jeongmin is starting his new lab at Seoul National University [Link].

Seonah Moon
seonah.moon at

Seonah was a graduate student in the Xu group from 2014, and graduated in 2019 with her Ph.D. In the Xu group, her research focused on implementing new methods for spectrally-resolved super-resolution microscopy and applying them to biological systems. She also took part in a few graphene-related projects. She is now a Yield Engineer at Intel Corporation in Hillsboro, Oregon.

Meghan Hauser
meg.hauser at

Meghan joined the Xu group in Fall 2013, graduated with her Ph.D. in 2017, and then briefly stayed as a postdoc. Her research focused on the development of correlative microscopy methods and the application of super-resolution microscopy to both biological and inorganic materials systems. She is now an analyst at the boutique consulting firm, Clark Street Associates, in Mountain View, where she works with companies in the technology industry to optimize their businesses.

Sam Kenny
sjkenny1 at

Sam was a graduate student in the Xu group from 2013 to 2018. His research encompassed the development of multicolor super-resolution microscopy and image analysis methodologies, as well as their application to cellular membranes and other biological systems. He is now a data scientist at Faire, a San Francisco-based wholesale retail company.

Michal Wojcik
mwojcik at

Michal started his graduate studies as Prof. Xu's first student during the summer of 2013, and graduated with his Ph.D. in 2018. In the Xu Lab, he played a key role in the development and application of multiple novel microscopy techniques to biological and materials systems. He is currently a Life Sciences Specialist at L.E.K. Consulting in Los Angeles.

Doory Kim
kim33 at

Doory was a postdoc in the Xu Lab from 2016 to 2017, where she extended spectrally resolved STORM to single-molecule reactions. She is starting her new lab at Hanyang University [Link].

Leiting Pan
peterpan at

Leiting Pan was a visting scholar in the Xu Lab from December 2015 to December 2016, where he led super-resolution microscopy work on erythrocytes. He is currently professor at Nankai Univerisity [Link].

Zhengyang Zhang
zhengyang at

Zhengyang was a postdoc in the Xu Lab from 2014 to 2016, where he led the development of spectrally resolved STORM super-resolution microscopy. Zhengyang is now starting as a lecturer in the Department of Chemistry at Nanyang Technological University [Link].

Undergrad Alumni

Min (Helen) Yang Franklin Aviles Xuyan (Shirley) Chen
Zhiheng Zhao
Manni He Yennie Shyu Albert Chiu