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. 2022 Jul 4;14(7):1404. doi: 10.3390/pharmaceutics14071404

Figure 2.

Figure 2

Characterization of MNs. (A) Preparation scheme of a drug NP-loaded MN. (B) SEM images of MNs. Scale bar: 300 μm. (C) SEM images of MNs. Scale bar: 100 μm. (D) Laser confocal microscopy image of MNs. Scale bar: 300 μm. (E) Mechanical strength of MNs and photograph after compression.