A paper in Proceedings of the National Academy of Sciences of the United States of America entitled “Nanovesicles displaying functional linear and branched oligomannose self-assembled from sequence-defined Janus glycodendrimers” was published recently by our group and highlighted by E. K. Brockmeier “A new tool for cell biologists” in Penn Today. This work is a collaboration between Penn, Temple University, the Max Planck Institute, the Leibniz Institute for Interactive Materials, RWTH Aachen University, and Freie Universität Berlin, This story demonstrated how our research on synthetic vesicles coated with oligomannose can do for coronavirus.