Functional 2D Germanene Fluorescent Coating of Microrobots for Micromachines Multiplexing Tijana Maric, Seyyed Mohsen Beladi-Mousavi, Bahareh Kherzi, Jiri Sturala, Muhammad Zafir Mohamad Nasir, Richard D. Webster, Zdeněk Sofer, and Martin Pumera* Small 2020, 16(27), 1902365