Micro- and nanocrystalline lanthanum-samarium ferrites La1-x Sm x FeO3 with orthorhombic perovskite structure were obtained by using both solid state reactions (x = 0.2, 0.4, 0.6 and 0.8) and sol-gel synthesis (x = 0.5) techniques. Obtained structural parameters of both series of La1-x Sm x FeO3 are in excellent agreement with the "pure" LaFeO3 and SmFeO3 compounds, thus proving formation of co...

Lanthanum zinc penta-borate, LaZnB(5)O(10), was synthesized by flux-supported solid-state reaction. It is a member of the LnMB(5)O(10) (Ln = rare earth ion and M = divalent metal ion) structure type. The crystal shows a three-dimensional structure constructed from two-dimensional {[B(5)O(10)](5-)}(n) layers with the lanthanum (coordination number nine) and zinc (coordination number six) ions fi...

BACKGROUND Chronic kidney disease-mineral and bone disorder (CKD-MBD), a complication of chronic kidney disease, has been linked to reduced quality and length of life. High serum phosphate levels that result from CKD-MBD require phosphate-lowering agents, also known as phosphate binders. The objective of this systematic review is to compare the effects of available phosphate binders on laborato...

Recent advances in understanding the clinical and genetic heterogeneity of Dent's disease. D'mello RG et al. Responsiveness of hyper-calciuria to thiazide in Dent's disease. Acute interstitial nephritis associated with thiazide diuretics. Clinical and pathologic observations in three cases. Effect of hy-drochlorothiazide on urinary calcium excretion in Dent disease: an uncontrolled trial. Sir, ...

A novel activation route for the preparation of carbon-based adsorbents functionalized with lanthanum and their application arsenic adsorption was proposed. This procedure is based on carbon dioxide at room temperature, which could allow to reduce energy consumption adsorbent cost. comparison this approach respect conventional thermal 800 °C under N2 atmosphere performed biochar from avocado se...

A facile spray drying technique has been developed for large-scale and template-free production of nanoporous silica with controlled morphology, large pore size, and high pore volume, using commercially available fumed silica, Aerosil 200, as a sole precursor. This approach can be applied to the preparation of functional nanoporous materials, in this study, lanthanum oxide functionalised silica...

BACKGROUND Hyperphosphataemia is a risk factor for arterial calcification contributing to the high cardiovascular mortality in patients with chronic kidney disease. Calcium-based phosphate binders can induce hypercalcaemia and are associated with progression of vascular calcification. Therefore, the effect of lanthanum carbonate, a non-calcium phosphate binder, on the development of vascular ca...

We present a series of detailed band calculations on the various structural phases of doped lanthanum cuprate: HTT, LTO, and LTT. The LTO distortion is shown to have little effect on the electronic density of states (DOS). A fit to the pressure dependence of the superconducting transition temperature indicates that only 2.5% of the DOS is affected by the HTT→ LTO transition. The LTT distortion ...

An analytical method for the determination of traces of rare earth elements (REE) as impurities in high pure lanthanum oxide (La O ) 2 3 ́ produced in the Instituto de Pesquisas Energeticas e Nucleares (IPEN) and compared with the oxide of commercial lanthanum as a certified reference is discussed in this work. The REE as impurities in the lanthanum oxide were separated from the matrix by a high...