Self-assembled monolayers of thiols have applications ranging from surface coatings to nanomechanical sensors, where they transmit analyte-induced stress to a cantilever detector. For gold nanocrystals it is now shown that the adsorption of propanethiol alone can induce large chemical stress, with different directionality on curved and flat surfaces.
- Moyu Watari
- Rachel A. McKendry
- Ian K. Robinson