Bimodal Fluorescence and Magnetic Resonance Imaging Using Water-Soluble Hexagonal NaYF₄:Ce,Tb,Gd Nanocrystals

Figure 4

(a) Brightfield and (b) fluorescence images of C6 glioma cells incubated with folic acid coupled with NaYF₄:Ce,Tb,Gd NCs. The fluorescence image was collected at 500–560 nm. The scale bar is 20 μm.

(a)

(b)