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. 2014 Sep 15;4:6362. doi: 10.1038/srep06362

Figure 1. Fabrication of the magcup.

Figure 1

(a) Schematic images of the fabrication. First, Ni and SiO2 were sequentially deposited on the polystyrene beads at thicknesses of 2 and 15 nm 3 and 2 times, respectively. Next, the deposited polystyrene beads were burned in an electric furnace to remove polystyrene casts from the particles. Then, the magcups composed of Ni and SiO2 layers were fabricated. (b, c) FE-SEM images of fabricated magcups at low (b) and high (c) magnifications. Cup size, 10 μm. Bars are 10 μm (b) and 1 μm (c).