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. Author manuscript; available in PMC: 2016 Dec 15.
Published in final edited form as: Anal Chem. 2015 Dec 4;87(24):11973–11977. doi: 10.1021/acs.analchem.5b03604

Figure 1.

Figure 1

(a) A photograph showing the backside of a 1 inch × 1 inch silicon chip with 16 KOH etched reservoirs visible. (b) A SEM showing 4 arrays milled on the suspended nitride membrane with hole size 600 nm and periodicity 1200 nm.