Fig. 6From: Remote-controllable bone-targeted delivery of estradiol for the treatment of ovariectomy-induced osteoporosis in ratsThe cell uptake capability and cytotoxicity of NPs in Raw264.7 cells. CLSM images (a) and fluorescence intensity (b, c) of Raw 264.7 cells incubated with coumarin 6-loaded NPs (n = 3). Scale bar = 10 µmBack to article page