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. 2021 Mar 12;22(1):218–233. doi: 10.1080/14686996.2021.1883406

Figure 1.

Figure 1.

Cryogenic-TEM images of coated nanospheres. (a) CuO-NPs@H-PLGA/PDA/PEG and (b) CuO-NPs@L-PLGA/PDA/PEG in water. Scale bar denotes 100 nm. The asterisk denotes perforated carbon film supported on a TEM copper grid