Prof. Xiaomei Yan and her team made great progress in the high resolution single particle testing technology of the virus. The achievement titled “Label-Free Analysis of Single Viruses with a Resolution Comparable to That of Electron Microscopy and the Throughput of Flow Cytometry” was published in Angewandte Chemie International Edition (Angew. Chem. Int. Ed., DOI: 10.1002/anie.201603007) and has earned the accolade the “hot” paper because it has received numerous citation.