A Simple Method for Patterning Nanoparticles on Planar Surfaces

Figure 4

Friction force microscopy image of patterns produced by shaving the poly(ethylene glycol)-silane monolayer on titanium oxide: (a) different-sized patterns on the same sample (image size 20 × 20 μm², z range 0-1 V); (b) 150 nm shaved part (image size 15 × 15 μm², z range 0–0.5 V); (c) 50 nm shaved part (image size 5 × 5 μm²); (d) 35 × 35 μm² topographic images of the scratches in (b).

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