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. 2020 Sep 25;10(10):1913. doi: 10.3390/nano10101913

Figure 4.

Figure 4

TEM images of (a) chitosan functionalized metal oxide microparticles using the microemulsion process (MC1), (b) chitosan functionalized metal oxide microparticles using the suspension cross-linking process (MC2), (c) the crystallinity of the nanoparticles and (d) chitosan functionalized metal oxide nanoparticles using the covalent binding method.