Fig. 4From: Novel nanomedicine with a chemical-exchange saturation transfer effect for breast cancer treatment in vivoToxicity and uptaken studies of nanomedicine. a, b Typical MTT method was used to evaluate the cytotoxicity of PEG-PAM-PAN, free DOX, and PEG-PAM-PAN@DOX. c Cellular uptake of free Dox and NPs using confocal microscope at 2Â h and 24Â h of treatmentBack to article page