Ke Xu Group


Principal Investigator

Ke Xu
xuk at

Ke Xu is an assistant professor of Chemistry and the Chevron Professor of Chemistry at U.C. Berkeley.

Ke graduated from Tsinghua University in 2004. He earned his PhD at the California Institute of Technology in 2009 with Prof. Jim Heath, where he worked on nanoscale surface science, superconductivity, and molecular electronics. Ke performed his postdoctoral work with Prof. Xiaowei Zhuang at Harvard University, where his newfound interests in biological applications of physical methods led to fascinating work on super-resolution microscopy. Ke joined the College of Chemistry at U.C. Berkeley in the summer of 2013.

Post-doctoral Researchers

Wan Li
wl285 at

Wan obtained her bachelor and master degrees in physics from Tsinghua University, working on spin-transport theories. She obtained her Ph.D. degree from Cornell University in 2013, where she worked with Prof. Dan Ralph on graphene electrochemistry and spintronics. After a 2-year postdoc in Prof. Jay Groves’ lab at UC-Berkeley, where she integrated graphene with bio-mimicking supported lipid bilayers, she joined Xu lab in 2015. She currently works on high-contrast visualization of graphene on transparent substrates, but also has broad interests in integrating graphene with biological studies.

Limin Xiang
lxiang2 at

Limin graduated from Peking University in 2010 with a Bachelor degree of Science in Chemistry. He obtained his Ph.D in Chemistry in 2016 from Arizona State University where he worked in Prof. Nongjian Tao's group. During his Ph.D study his researches mainly focus on single molecular electronics especially for DNA using STM break junction technique. He joined the Xu Group in 2016 and his current research interests involve combining STORM technique with electric and force measurements, to study the interplay between optical, electric and mechanic properties on the single molecular level.

Kun Chen
chenk at

Kun obtained his bachelor degree in optoelectronic science from Nankai University in 2013 working on optical clearing and laser-tissue interaction with Prof. Yanmei Liang. He earned his Ph.D at Tsinghua University in 2017 under the supervision of Prof. Yan Li, where he explored femtosecond optical frequency lasers and developed novel ultra-speed and broadband coherent anti-Stokes Raman spectroscopy and microscopy for label-free molecular detection. In 2017, he joined the Xu Group at Berkeley and his current researches focus on development of innovative optical and single-molecule spectroscopy.

Graduate Students

Michal Wojcik
mwojcik at

Michal graduated from Cornell University in 2013. He started his graduate studies as Prof. Xu's first student during the summer of 2013.

Michal did his undergraduate research with Prof. Jiwoong Park, a pioneer in graphene and semiconductor nanoscience. His interests include the combination of nanoscience with biology as well as biophysical method development to better understand dynamic processes in cells at the nanometer scale.

Sam Kenny
sjkenny1 at

Sam graduated from the University of Minnesota in 2013. He joined the Xu group in Fall 2013.

Sam did his undergraduate research with Prof. Ken Leopold, where he designed and built an apparatus to study nonlinear behavior in coupled chemical oscillators. He also studied inorganic synthesis with Prof. Connie Lu, with the goal of creating novel ligand-stabilized heterobimetallic bonds. He is interested in studying mitotic spindle structure and dynamics with super-resolution microscopy.

Meg Hauser
meg.hauser at

Meg graduated from Brown University in 2013. She joined the Xu group in Fall 2013.

Meg did her undergraduate research with Prof. Sarah Delaney, where she analyzed the structure and thermodynamic properties of DNA hairpins, as well as their role in trinucleotide repeat expansion events in the course of DNA repair. Her current interests involve studying immune cell ultrastructures using super-resolution microscopy.

Seonah Moon
seonah.moon at

Seonah graduated from Korea Advanced Institute of Science and Technology in 2014.

Seonah did her undergraduate research with Prof. Hyotcherl Ihee, where she investigated ultrafast exciton dynamics of polymer solarcell materials.

Rui Yan
rui.yan at

Rui graduated from Peking University in 2015. He joined the Xu group in Fall 2015.

Rui did his undergraduate research with Prof. Yongfen Qi, where he studied inflammatory response of macrophages in sepsis. He also did protein purification and yeast genetics. His interests include the dynamics of cytoskeletal architecture during neuronal development and biological applications of super-resolution microscopy.

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.


Yennie Shyu
yshyu at

Yennie joined the group in Spring 2015. She is a sophomore and a member of U.C. Berkeley's Class of 2018. Yennie plans to major in Molecular and Cellular Biology and minor in Chemistry.

Manni He
mannihe at

Manni joined the group in Summer 2016. She majors in Chemical Biology and is a member of UC Berkeley's Class of 2018.

Shirley Chen
s.chenxy at

Shirley joined the group in Summer 2016. She is a member of the U.C. Berkeley College of Chemistry Class of 2019 and is majoring in Chemical Biology.


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.

Leiting Pan
peterpan at

Leiting Pan was a visting scholar in Xu Lab from December 2015 to December 2016. He is an associate professor of Nankai Univerisity, China. His current interests involve investigating ultrastructure of membrane skeleton in blood cells (erythrocytes, neutrophils) using super-resolution microscopy.

Zhengyang Zhang
zhengyang at

Zhengyang was a postdoc in Xu Lab from 2014 to 2016, where he led the development of spectrally resolved STORM super-resolution microscopy [Link].

Albert Chiu
achiu17 at

Albert joined the group in Spring 2014. Albert is originally from Macau, China. He is a member of the U.C. Berkeley class of 2017 and plans to major in chemical biology.