Figure 2.

Demonstration of different structures that can be found upon drying of a) a buffer (Hepes, NaCl, α‐Dodecyl Maltoside); various water soluble polymers: b) poly‐(N,N‐dimethylacrylamide (mw 39 kD),35 c and d) polystyrene sulfonate sodium salt (mw 220 kD) and e) polyethylene oxide (mw 97kD); and f) a molecular motor in dichloromethane/acetonitrile.36 These patterns and structures are not representative for these samples in solution, because none of them form aggregates. Different types of drying patterns can be found for different materials, but also on different areas of the grid (c and d), and when varying the polarity of the surface. Black and white scale bars represent 50 nm and 1 µm respectively.