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. 2019 Jun 19;11(6):288. doi: 10.3390/pharmaceutics11060288

Figure 1.

Figure 1

Selected transmission electron microscopy images: (a) Chitosan-mesoporous silica nanoparticles (CHIT-MSNs) (scale bar = 200 nm) and (b) 5-fluorouracil loaded 5% polyethylene glycol-CHIT-MSNs (scale bar = 500 nm).