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Guangjun Cheng

Guangjun Cheng is a guest researcher in the Physical Measurement Laboratory at the National Institute of Standards and Technology (NIST). He is working in the Biophysics Group with Angela Hight Walker to synthesize nanoscale materials, including nanoparticles, nanotubes, and nanowires, and to characterize their properties using transmission electron microscopy (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), x-ray diffraction (XRD), superconducting quantum interference device (SQUID), Raman spectroscopy, synchrotron x-ray (EXAFS and XANE), and neutron scattering. 

Research projects:

• Magnetic nanoparticles

• Colloidal copper nanoparticles and their chemical reactivity

• Chemically modified graphene




Guest researcher
Radiation and Biomulecular Physics Division
Biophysics Group

Employment History:

2003-present, NIST, Gaithersburg, MD


Ph.D. Chemistry, University of California, Davis, Davis, CA

M.S. Peking University, Beijing, China

B.S. Northeast Normal University, Changchun, China


Phone: 301-975-5209