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. 2020 Jun 2;12(6):505. doi: 10.3390/pharmaceutics12060505

Figure 2.

Figure 2

TEM micrographs of (a) MSN160 nm, (c) MSN130 nm, (e) MSN100 nm, (g) MSN80 nm, (i) MSN60 nm and corresponding particle size distribution histograms obtained from TEM images (b,d,f,h,j). Scale bar represents 150 nm.