(a) A schematic illustrating (i) microfabricating scaffolds, (ii) patterning of proteins inside scaffolds, and (iii) the combination of both scaffold microfabrication and protein patterning. (b) The optical setup used for performing MPP. FR = Faraday rotor, EOM = electro optic modulator, SM = x-y galvanometer scanning mirrors, SL = scan lenses, DM = dichroic mirror, PZ = piezo objective mount for z-axis motion.