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. 2021 Jun 28;13(7):978. doi: 10.3390/pharmaceutics13070978

Figure 1.

Figure 1

Representative TE micrograph (A) Nanovesicular carrier not containing drug ×135 k, bar 200 nm, and (B) NVS containing 1% Butorphanol tartrate, ×135 k bar 100 nm, Philips TECHNAI CM 120 electron microscope, Eindhoven, The Netherlands.