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. 2017 Aug 28;2(8):5012–5018. doi: 10.1021/acsomega.7b01001

Figure 2.

Figure 2

SEM images of nanoholes in the borosilicate glass substrate. (a) Tilted top-view (25° tilt) SEM image of the nanoholes. The inset shows a side view of the nano holes. The size of the scale bar in both is 250 nm. (b) Top-view SEM image of the nanoholes (scale bar = 2 μm). The inset shows an enlarged image (scale bar = 250 nm).