Fig. 2
From: Delivery of nanoparticles to brain metastases of breast cancer using a cellular Trojan horse
Cellular uptake of gold-silica nanoshells and red fluorescent microspheres by monocytes/macrophages. a Transmission electron micrograph of monocytes/macrophages incubated with nanoparticles reveals intracellular localization of gold conjugates (arrow 1 in inset) as well as the ingested red fluorescent microspheres located in the vacuoles in the cytoplasm (arrow 2 in inset). b Fluorescence microscopy imaging shows significant intensity of red fluorescence (580/605 nm) indicating the presence of intracellular red fluorescent microspheres