Conroy Sun, a postdoctoral fellow in the Image Guided Intervention Laboratory, has received a Breast Cancer Research Program (BCRP) Fellowship Award from the Department of Defense to support the development and research of x-ray luminescent nanophosphors for use in breast tumor detection and treatment.
When cubic NaGdF4:15%Eu3+ was compared with BaYF5:10%Eu3+ and BaYF5:10%Eu3+55%Ce, the X-ray luminescent intensity of the NaGdF4:15%Eu3+ was the highest.
X-ray luminescent nanoparticles (NPs), including lanthanide fluorides, have been evaluated for application to deep tissue in vivo molecular imaging using optical tomography.
Their crystal structures have been determined by X-ray crystallography and solid state luminescent properties have been measured at room temperature.
Magnesium borate can be used as thermo-luminescent phosphor [9], antiwear and friction reducing additive [10], ferro-elastic material [11], which is a candidate for tunable laser applications [12], and can be used as a luminescent material for fluorescent discharge lamps, cathode ray tube screens, and X-ray screens [13].
Other uses are in phosphors for displays and TV screens that use cathode-ray tubes, in special luminescent and infrared-absorbing glasses, in inorganic and organic catalysis, and in the electronics and ceramics industries.
This paper presents measurement results of x-ray dosimetry using thermo luminescent detectors (TLD) along 12 months of regular working in the High Voltage Laboratory of Institute of Energy and Environment (IEE) of the University of São Paulo (USP).
One new compound, [Ag p-bix)]3[Ag p-bix2]·2H2O (H3[Ag=1,2,4-benzenetricarboxylate, p-bix=1,4-bis(imidazol-1-ylmetH3btc=1,2,4-benzenetricarboxylate H3btc=1,2,4-benzenetricarboxylatend characterized by elemental analysis, IR, p-bix=1,4-bis imidazol-1-ylmethyl -benzenestal p-bix=1,4-bis imidazol-1-ylmethyl -benzene
A novel inorganic organic hybrid compound based on mixed-valence Wells Dawson arsenotungstate and mixed-ligand Cu(I) units, Cu8I imi 4 bpy 6(H2O)[As2VW2VW16VlO62]·2H2O (1) (bpy=4,4′-bipydine; imi=imidazole), has been hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, thermal gravimetric analysis, luminescent spectrum and single crystal X-ray diffraction.
Figure 5 Wide-angle X-ray diffraction pattern of luminescent mesoporous Tb(OH) 3 @SiO 2 core-shell nanosphere.
He thus confirmed his view that something very similar to X rays was emitted by this luminescent substance at the same time it threw off visible radiation.
