The effect of Eu3+ ion doping concentration in Gd2O3 fine spherical particles

Synthesis of Eu3+-doped Gd2O3 in hollow nanoparticle structures by controlled chemical etching with poly(acrylic acid)

“…27 The thermal annealing processes were carried out at different temperature to find out the lowest temperature to effectively generate 18,28 From the XRD measurements of annealed products at different temperature as shown in Figure 2, the optimum annealing condition was selected as heating to 550 ºC within 1 h and maintaining at that temperature for 2 h. ºC for 12 h, the turbidity of the solution decreased significantly and the dispersion stability seemed to be enhanced a lot. Transmission electron microscope (TEM) and scanning electron microscope (SEM) images revealed that the resulted material had a hollow structure as shown in Figure 4.…”

A wavelet-based single-view reconstruction approach for cone beam x-ray luminescence tomography imaging

“…The main propose of this paper is not about efficient solver of Eq. (12). Considering the time consumption of reconstruction, in this paper, we use a standard orthogonal least squares (OLS) method for the solver Eq.…”

“…Considering the time consumption of reconstruction, in this paper, we use a standard orthogonal least squares (OLS) method for the solver Eq. (12). The details of the process can be found in [20].…”

“…In addition, XLCT has the ability to image deeper since it use high-energy x-ray photons to excite the nanophosphors in tissues, which provides the potential for clinical applications. Further, with the advances in the x-ray-excitable nanophosphors [11][12][13], more applications can be expected in fundamental researches, preclinical and clinical experiments.…”

Highly Efficient Fluorescence of NdF3/SiO2 Core/Shell Nanoparticles and the Applications for in vivo NIR Detection

“…[21] While recent literatures have demonstrated that in some NPs, fluorescent RE ions have unusual thresholds (even near 50 mol %) for the concentration effect. [22][23][24] This provides new possibility for improving fluorescent RE materials, however, it is still unclear whether there exists some RE NPs which are free from the concentration quenching effect. In this work, we developed NdF 3 /SiO 2 core/shell NPs, which demonstrated highly efficient fluorescence in vivo due to the successful suppressions of these two energy-loss effects as well as satisfying the above-mentioned spectral requirements.…”