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(a) PA imaging process of brain tumor in vivo by PDI NPs. Reproduced with permission [98]. Copyright 2015, Wiley-VCH. (b) The preparation of cRGD-PDI NPs. Reproduced with permission [105]. Copyright 2017, American Chemical Society. (c) IRDye800CW-labeled photosensitizer ZnF16Pc-loaded PDI photoacoustic nanodroplet (PS-PDI-PAnD). Reproduced with permission [116]. Copyright 2018, American Chemical Society.
