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(A) In vivo and (B) ex vivo NIRF imaging of DiR-loaded POEG15-b-PFTS6 and POEG15-b-PFTS16 micelles (denoted as PF6 and PF16) in prostate cancer PC-3 xenograft-bearing mice. (C) Quantitative fluorescence intensities of tumors and major organs from ex vivo images.
