Brain Tumor Diagnostics and Therapeutics with Superparamagnetic Ferrite Nanoparticles

Figure 3

³¹P MRS detection of 3-aminopropyl phosphonate (3-APP) and inorganic phosphate () for extracellular pH () and intracellular pH (), respectively. The gradient for different types of tumor (red arrows) and normal tissue (blue arrows). From [16] with permission.