Figure 1.

A) The printing platform combines a digital micromirror device, piezoelectric stage, and microfluidics to perform photochemical surface reactions. B) The surface density is manipulated by varying mole fraction, χ, of α-Man (green circles) to allyl alcohol spacer (blue triangles). C) The three molecules involved in the surface functionalization. D) Thiol-ene photochemical surface chemistry is used for immobilization of α-Man and allyl alcohol. E) Image from the RCSB PDB (rcsb.org) of PDB ID 3QLQ⁴² shows the ribbon structure of ConA in its tetrameric form; each monomer binds two metal ions and one glycan (mannoside). Spacing between each glycan binding site is approximately 7 nm. F) The bonding interactions presumed to occur between an immobilized mannoside and ConA.