Dual-Modality Imaging Probes with High Magnetic Relaxivity and Near-Infrared Fluorescence Based Highly Aminated Mesoporous Silica Nanoparticles

Figure 4

Cellular uptake of Gd/NIR-MSNs in human glioblastoma U87-MG-GFP cells. (a) GFP fluorescent image of U87-MG-GFP cells. (b) NIR fluorescent image of Gd/NIR-MSNs. (c) Nucleus staining of cells with DAPI. (d) The merged imaging of (a–c). (e) TEM image of the U87-MG-GFP cell incubated with the Gd/NIR-MSNs. (f) In vitro viability of human embryo kidney 293T cells incubated with Gd/NIR-MSNs.

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