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(a) Molecular structure of the Cy5 containing co-polymer 13 reported by Lin et al. to form poly(ethylene glycol)2k-block-poly(D,L-lactide)zk (PEG-PLA) based nanoparticles (105); (b) PAI of a HeLa-tumor-containing mouse administered intratumorally with nanoparticles derived from 13. Reproduced with permission from ref. 105. Copyright 2016 American Chemical Society.
