School of Chemistry and Chemical Engineering, Harbin Institute of Technology, China;Dr. Guanying Chen has been a professor at the School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), since 2013. He also serves as a research faculty at the Institute for Lasers, Photonics and Biophotonics (ILPB), SUNY Buffalo, since 2011. His research interests focus on lanthanide-doped materials, upconversion, nanocrystals and crystals, biophotonics, and nanostructured solar cells. He has published more than 110 peer-reviewed papers in journals such as Chem. Rev., Chem. Soc. Rev., Acc. Chem. Res., J. Am. Chem. Soc., Adv. Mater., ACS Nano, etc. He has an H index of 58 and more than 16,000 total citations. He received the Top-Notch Young Investigator Award from the Department of the Central Committee of China in 2015, Young Changjiang Professor from Ministry of Education China in 2019, Top 100 National Excellent PhD Dissertation Nomination Award of China in 2011, and the Distinguished Young Investigator Career Award of HIT in 2015. He sits on editorial boards for six SCI journals, including Scientific Reports, Nanomaterials, Crystals, and the Journal of Rare Earths.

School of Geography, Earth and Environmental Science, University of Birmingham, UK;I hold a degree in Earth Sciences from the University of Athens (Greece) and a PhD in Geochemistry from the University of Newcastle upon Tyne (UK). I consider my self to be a scientific hybrid with diverse interests. My current research focuses around the mechanisms involved in nanoscale processes in a biological and environmental context. I am interested in chemical species stability and transformations in the environment. I have studied extensively the reactivity and potential toxicity and fate of nanomaterials in the environment. I have pioneered the development of traceable stable-isotope labelled nanomaterials and is currently working on the development of analytical solutions for the improvement in speed and quality of identification of nanoscale objects in complex matrices.