Fig. 1From: Multifunctional nanoplatforms as cascade-responsive drug-delivery carriers for effective synergistic chemo-photodynamic cancer treatmentMass spectrum of a Por-R6-Boc, b Por-R6-NH2, and c Por-R6-CHO. d UV–vis spectrum of cRGD-PEG, PEG, and cRGD. e GPC spectrum of cPRP and cRGD-PEG. f 1H-NMR spectrum of cPRPBack to article page