Zhiyong Zhang, male, born in 1970, received his PhD from Peking University in 1997 in the field of radiochemistry. Post-doctoral research associate, assistant professor and full professor (since 2006) in Institute of High Energy Physics, the Chinese Academy of Sciences. Areas of Research: Applications of nuclear analytical techniques, rare earth chemistry Achievement and Experience:
Independently developed a new gadolinium-loaded liquid scintillator which has long attenuation length, high light yield and long-term stability. This work has solved a big technical problem in neutrino detection and is regarded as one of the most important breakthrough points of The Daya Bay Neutrino Experiment.
Applied analytical methods based on synchrotron radiation such as soft X-ray microscopy and X-ray absorption spectroscopy and radiotracer techniques in a new field - environmental behavior and toxicology of nanomaterials. Discovered that CeO2 NPs with high stability can undergo biotransformation in plant systems and the released heavy metal ions in biotransformation play important roles in the phytotoxicity of metal based nanomaterials. Prepared radiolabeled rare earth oxide nanoparticles and studied their biological and environmental behavior.
Utilized conventional toxicology methods combined with nuclear analytical techniques and revealed a multi-path, multistep and indirect mechanism of REEs neurotoxicity. Identified much lower aquatic toxicity of REEs than common heavy metal pollutants and ruled out the existence of REEs as the main reason of environmental pollution in the REE ore area. Provided scientific evidence for evaluating bio-safety of REEs and setting related standards.