Study of Structural and Photoluminescent Properties of Ca8Eu2(PO4)6O2

Silva, C. C.; Filho, Fuad Pereira Nogueira; Sombra, A. S. B.; Rosa, Ieda L. V.; Leite, E. R.; Longo, Elson; Varela, José Arana

doi:10.1007/s10895-007-0242-9

Cited by 24 publications

(19 citation statements)

References 36 publications

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“…Patients in this study were stratified by their baseline statin or dose/type used at the time of hospitalization (that is, low-, intermediate- and high-potency statin), since different types and doses of statins are known to vary with respect to their LDL-C-lowering efficacies [25]. Furthermore, while statin therapy is generally well tolerated when used at moderate doses, the risks of liver- and muscle-related AEs are known to increase with higher statin doses [26, 27]. As a result, patients were stratified by statin potency tertiles to allow for balanced between-group comparisons of efficacy, safety and tolerability endpoints.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of Ezetimibe/Simvastatin 10/40 mg Compared to Doubling the Dose of Low-, Medium- and High-Potency Statin Monotherapy in Patients with a Recent Coronary Event

Brudi

Reckless²,

Henry³

et al. 2008

Cardiology

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Objective: The aim of the study was to compare the efficacy/safety of doubling the dose of low-, medium- and high-potency statins on lipids/lipoproteins versus ezetimibe/simvastatin (EZE/SIMVA) 10/40 mg in patients with a recent coronary event. Methods: In this open-label study, patients were stratified by baseline statin therapy (low, medium and high potency) and randomized equally to statin dose doubling or EZE/SIMVA 10/40 mg for 12 weeks. Primary analysis concerned change in low-density lipoprotein cholesterol for the whole population. Treatment-by-stratum interaction evaluated the consistency of treatment effect across statin potency strata. Post hoc analysis of between-group efficacy within strata was performed using ANCOVA. Results: Within each stratum, EZE/SIMVA produced significantly greater reductions in low-density lipoprotein cholesterol, total cholesterol, apolipoprotein B and non-high-density lipoprotein cholesterol (HDL-C) compared to statin doubling. Numerical trends toward smaller between-group reductions were observed with higher-potency statins and reached statistical significance for apolipoprotein B and non-HDL-C. No significant between-group differences in HDL-C and C-reactive protein were observed within each stratum. EZE/SIMVA produced larger reductions in triglycerides versus low-potency statin, whereas it was similarly effective compared with intermediate-/high-potency statins. The safety/tolerability profiles of the treatments were similar across the strata. Conclusions: EZE/SIMVA 10/40 mg produced greater improvements in lipids with a similar safety profile compared to doubling the dose of low-, medium- and high-potency statins.

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Section: Discussionmentioning

confidence: 99%

Efficacy of Ezetimibe/Simvastatin 10/40 mg Compared to Doubling the Dose of Low-, Medium- and High-Potency Statin Monotherapy in Patients with a Recent Coronary Event

Brudi

Reckless²,

Henry³

et al. 2008

Cardiology

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“…9, usually confirms the formation of apatite [35]. Bands observed at 564, 565, 601, 602 cm -1 are attributed to asymmetric and symmetric bending of PO 4 3-(m 4 ). Bands observed at 965, 966 cm -1 are assigned to symmetric stretching of PO 4 3-(m 1 ).…”

Section: Ft-ir Studymentioning

confidence: 72%

“…2 A 1g (G), 2 T 1g (G) and 2 A 1g (F) respectively. In O h symmetry theoretically the ratios of energies of transitions 4 T 1g (F) ? 4 A 2g (F): m 2 and 4 T 1g (F) ?…”

Section: Optical Absorption Studymentioning

confidence: 99%

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Structural and photoluminescence studies of Co2+ doped Ca–Li hydroxyapatite nanopowders

Koutavarapu

Babu

Rao

et al. 2015

J Mater Sci: Mater Electron

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Co 2? doped Calcium-Lithium Hydroxyapatite (CLHA) nanopowders were prepared by mechanochemical synthesis and characterized by different techniques. From Powder XRD data, the crystal system belongs to hexagonal structure and lattice cell parameters, average crystallite size were evaluated. The morphologies of prepared samples were analyzed by using SEM and TEM studies. Optical and EPR data confirms that the doped Co 2? enter into host material as distorted octahedral site symmetry. PL studies of Co 2? doped CLHA nanopowders exhibit UV, blue and yellow emission bands. CIE chromaticity coordinates were also calculated from emission spectra of Co 2? doped CLHA nanopowders. Vibrational bands related to phosphate molecules, P-O-H and hydroxyl ions are observed in FT-IR spectra.

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“…Europium in its trivalent state is one of the most studied among rare earth ions by luminescence spectroscopy due to the simplicity of its spectra and wide application as red phosphor in color TV screens. This ion has also attracted significant research attention due to its potential application as biological sensors, phosphors, electroluminescent devices, optical amplifiers or lasers when used as doping in a variety of materials 10,11 . Dutta et al 12 showed Indium hydroxides with different morphology such as spheres 13 , flowers 14,15 , cubes [16][17][18][19][20][21][22] , rods 23,24 , etc., have been synthesized by several synthesis methods.…”

Section: Introductionmentioning

confidence: 99%

Optical characterization of europium-doped indium hydroxide nanocubes obtained by Microwave-Assisted Hydrothermal method

et al. 2014

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Crystalline europium-doped indium hydroxide (In(OH) 3 :Eu) nanostructures were prepared by rapid and efficient Microwave-Assisted Hydrothermal (MAH) method. Nanostructures were obtained at low temperature. FE-SEM images confirm that these samples are composed of 3D nanostructures. XRD, optical diffuse reflectance and photoluminescence (PL) measurements were used to characterize the products. Emission spectra of europium-doped indium hydroxide (IH:xEu) samples under excitation (350.7 nm) presented broad band emission regarding the indium hydroxide (IH) , but the luminescence is drastically quenched for the IH matrix.

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Study of Structural and Photoluminescent Properties of Ca8Eu2(PO4)6O2

Cited by 24 publications

References 36 publications

Efficacy of Ezetimibe/Simvastatin 10/40 mg Compared to Doubling the Dose of Low-, Medium- and High-Potency Statin Monotherapy in Patients with a Recent Coronary Event

Efficacy of Ezetimibe/Simvastatin 10/40 mg Compared to Doubling the Dose of Low-, Medium- and High-Potency Statin Monotherapy in Patients with a Recent Coronary Event

Structural and photoluminescence studies of Co2+ doped Ca–Li hydroxyapatite nanopowders

Optical characterization of europium-doped indium hydroxide nanocubes obtained by Microwave-Assisted Hydrothermal method

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