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Surface fabrication. (A) Molds produced using photolithography as explained in Figure 1 are (B) coated in a 5-nm-thick layer of PMMA (PURPLE) and allowed to dry (C) before a layer of PMDS is spun onto the surface, baked at 150°C for 30 minutes, and peeled to produce a (D) PDMS imprint of the original mold.
