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. Author manuscript; available in PMC: 2019 Sep 5.
Published in final edited form as: Int J Pharm. 2018 Jul 3;548(1):443–453. doi: 10.1016/j.ijpharm.2018.07.010

Figure 2.

Figure 2

Representative scanning electron microscopy images of: (A) Meropenem-SD; (B) Colistin:Meropenem_1:3; (C) Colistin:Meropenem_1:1; (D) Colistin:Meropenem_3:1; and (E) Colistin-SD. Red arrows point out smooth particles (hollow or flake).