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. Author manuscript; available in PMC: 2020 Jan 15.
Published in final edited form as: Coord Chem Rev. 2017 Oct 21;379:65–81. doi: 10.1016/j.ccr.2017.09.007

Fig. 1.

Fig. 1

(a) TEM image and (b) high-resolution TEM image of DBP-Hf. (c) Singlet oxygen generation of DBP-Hf, H2DBP, and H2DBP+HfCl4 with SOSG assay. (d) In vitro PDT cytotoxicity of DBP-Hf and H2DBP. (e) In vivo tumor growth inhibition curve of DBP-Hf and H2DBP. Black and red arrows refer to the time of injection and light irradiation, respectively. Reprinted with permission form ref. [127]. Copyright 2014 American Chemical Society.