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A-nanoceria characterization by (A) UV-Vis (yellow: nanoceria, blue: A-nanoceria, green: ICG, purple: A-nanoceria-ICG); (B) FT-IR (yellow: nanoceria, blue: A-nanoceria, black: albumin); (C) XPS results, confirming the mixed valence states of Ce3+ and Ce4+ (59.37% of Ce3+ on 882.25 eV, 40.63% of Ce4+ on 885.9 eV). Full band description for (A) and (B) can be found in Supplementary Materials (Table S1). Full XPS spectra for (C) can be found in Figure S2C.
