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. 2022 Mar 22;207:114209. doi: 10.1016/j.bios.2022.114209

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Fig. 1 — TEM image (A), FT-IR spectra (B), EDX analysis (C), and corresponding elemental mapping data of BNQDs (D), (E), FE-SEM images of bare SPCE (F), BNQDs/SPCE (G), FGNs/BNQDs/SPCE in different magnitudes; 2 μm (H) and 1 μm (I).