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. 2018 Sep 27;23(10):2473. doi: 10.3390/molecules23102473

Figure 1.

Figure 1

Figure 1

Field emission scanning electron microscope (FESEM) images of S0′ (a′), S1′ (b′), S2′ (c′), S3′ (d′) and S4′ (e′); S0 (a), S1 (b), S2 (c), S3 (d) and S4 (e) (the scale bar is 10 μM).