Dr. Xiaodong Zhang, PhD at Tianjin University (2012), and Postdoc at Stanford University (2015). Research interests include fluorescence clusters, NIR-II imaging (1,000-1,700 nm) and nanomedicine. We published 60 peer reviewed papers, such as Adv. Mater., ACS Nano, and Adv. Funct. Mater. The total citations times are more than 1800, and 6 papers are elected as ESI Highly Cited Paper.