2D materials (IMAGE)

Penn State

2D materials

Caption

A molecule of the cancer medication doxorubicin (foreground), detected using the van der Waals vertical heterostructure biosensor (background). The background is an actual nanoscale scattering scanning near-field optical microscopy image (sSNOM) of the heterostructure and the large triangle is a single-layer MoS2 island (ca. 3.7 micron wide), the smaller triangle is a partially oxidized MoOS island, and the whole sample is covered with the monolayer graphene, with several wrinkles clearly seen in the map. The darker graphene area corresponds to the region of extra charge doping.

Credit

Elizabeth Flores-Gomez Murray/Jennifer McCann/Slava Rotkin, Penn state

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