Get access

Molecular Camouflage: Making Use of Protecting Groups To Control the Self-Assembly of Inorganic Janus Particles onto Metal–Chalcogenide Nanotubes by Pearson Hardness


  • We are grateful to the Deutsche Forschungsgemeinschaft (DFG) for financial support within the priority program 1165 “Nanowires and Nanotubes”. B.N. is recipient of a Fellowship from the Deutscher Akademischer Austausch Dienst (DAAD). We acknowledge support for the Electron Microscopy Center in Mainz (EZMZ) from the Center for Complex Matter (COMATT).


original image

Hard and soft: Binding of inorganic Pt@Fe3O4 Janus particles to WS2 nanotubes through their Pt or Fe3O4 domains is governed by the difference in Pearson hardness: the soft Pt block has a higher sulfur affinity than the harder magnetite face; thus the binding proceeds preferentially through the Pt face. This binding preference can be reversed by masking the Pt face with an organic protecting group.