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Assembly and characterization of tumor pH-responsive bovine serum albumin (BSA)-polyaniline (PANI) assemblies (A) Schematic illustration of the preparation process. (B) SEM and TEM (inset) images of the BSA–PANI assembly. (C) Absorption spectra of BSA–PANI assemblies dispersed in buffer solutions with different pH values [reproduced from (Tian et al., 2019) with permission from John Wiley and Sons].
