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. 2021 Sep 18;11(9):344. doi: 10.3390/bios11090344

Figure 4.

Figure 4

Illustration of: (A) the synthesis of the multifunctional DNA polymer-assisted upconversion therapeutic nanoplatform; and (B) the targeted photodynamic nanoplatform for highly efficient photodynamic therapy. Reprinted with permission from [88]. Copyright © 2020 American Chemical Society.