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. Author manuscript; available in PMC: 2022 Jan 25.
Published in final edited form as: Int J Pharm. 2020 Dec 2;593:120121. doi: 10.1016/j.ijpharm.2020.120121

Figure 2.

Figure 2

Figure 2

Low (left) and high (right) magnification SEM images of the inhalable vaccine candidates T, T20Leu, T10Pul, T20Pul, T3Tri, and T6Tri from top to bottom. SEM images showed that exterior particle morphologies vary based on excipient combination. Images of cracked particles indicate the encapsulation of vaccine nanoemulsion droplets. Scale bars are shown on respective images.