Figure 2
From: Few-layer bismuth selenides exfoliated by hemin inhibit amyloid-β1–42 fibril formation

Few-layer Bi2Se3 with different layers.
SEM, TEM and AFM images of few-layer Bi2Se3 stock solutions handled at 2000 (a, e, i), 6000 (b, f, j), 10000 (c, g, k) and 13000 rpm (d, h, l), respectively.