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Design and fabrication of the mold: (a) CAD image of the mold; (b) higher magnification of the CAD image of individual pillars with 61 micropillars; (c) image of the fabricated mold as it is removed from the printing machine; (d) image of the actual mold; ((e), (f)) closer views on the individual pillars. Scale bar: 5 mm (e), 2 mm (f).
