As shown in Figure3A,B and Figure S11 (Supporting Information), the tumor accumulation of Cy7‐labeled antibody in anti‐CD47‐PCM@NP was over two times greater than the anti‐CD47 group on the observed time points, confirmed by fluorescent imaging of tissue (tumor, heart, lung, liver, spleen, and kidney) slices (Figure S12, Supporting Information) and tissue distribution analysis (Figure 3C). Here, CD47 is linked to neoplasm.