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Fig. 2 | Journal of Nanobiotechnology

Fig. 2

From: Biomedical applications of 2D monoelemental materials formed by group VA and VIA: a concise review

Fig. 2

a, b Crystal structure of few-layer phosphorene. a Perspective side view of few-layer phosphorene. b Side and top views of few-layer phosphorene. Reprinted with permission [48], Copyright 2014 American Chemical Society. c–h Antimonene flakes on SiO2 substrates. c Top left, millimeter-size crystals of antimony. Middle right, adhesive tape with sub-millimeter crystals of antimony. Bottom left, polymer on glass slide with micrometer antimony flakes. d Optical microscopy image where up to three large flakes of antimony can be seen. e AFM topographic image showing two flakes of anti-monene located inside the marked region in d. f AFM topography of the ≈ 0.2 μm2 antimonene flake inside the blue square in e showing terraces of different heights. g High-resolution TEM image of a few-layer antimonene flake. The inset is a digital magnification of the area inside the blue rectangle. h AFM topography acquired on the bilayer terrace marked with a green arrow in f showing atomic periodicity. Reprinted with permission [50], Copyright 2016 Wiley

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