Interesting- but it may be more useful if the protein binding shape could be milled directly into the metal or plastic surface without need of a sugar coating (giggle factor, anyone?)
Perhaps ion beam milling could cut appropriate pits into the substrate by using the sugar casting of the proteins as a mask- the thinner portions of the mask would ablate away faster and allow etching of the surface below.
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-- Doug Jones, Rocket Plumber Rotary Rocket Company