Search results for " Borosilicate"

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MZ-35, a new layered pentasil borosilicate synthesized in the presence of large alkali cations

2013

Abstract A new layered borosilicate has been synthesized in the presence of cesium and sodium cations and its structure has been solved by a combination of automated diffraction tomography (ADT) and X-ray powder diffraction (XRPD). MZ-35 has a composition NaCs 2 [BSi 7 O 16 (OH) 2 ](OH) 2 ·4H 2 O and features space group P-4m2. The unusually small unit cell ( a 7.3081 A, c 10.7520 A) is shared by two random-stacked configurations of the structure: a network of connected pentasil units related to the layer of RUB-18 and a bidimensional checkerboard of intersecting ladders of 4-membered rings. The two configurations are related by the simple face-sharing inversion of a hydroxyl-bearing tetrah…

Automated electron diffraction tomography; Rietveld structure refinement; Layered borosilicate; 4-MR ladders; Face-sharing terahedraMaterials science4-MR laddersSodiumchemistry.chemical_element02 engineering and technology010402 general chemistry01 natural sciencesDiffraction tomographyFace-sharing terahedraGroup (periodic table)General Materials ScienceRietveld structure refinementLayered borosilicateBorosilicate glassAutomated electron diffraction tomographyGeneral Chemistry4-MR ladders; Automated electron diffraction tomography; Face-sharing terahedra; Layered borosilicate; Rietveld structure refinement[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnologyCondensed Matter PhysicsAlkali metal4-MR ladders; Automated electron diffraction tomography; Face-sharing terahedra; Layered borosilicate; Rietveld structure refinement;0104 chemical sciencesCrystallographychemistryMechanics of MaterialsCaesiumTetrahedron0210 nano-technologyPowder diffraction
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Synthesis and Characterisation of Functionalized borosilicate nanoparticles for boron neutron capture therapy applications

2012

Boron Neutron Capture Therapy (BNCT) is a promising therapy for the cure of diffuse tumors. The successful clinical application of BNCT requires finding new boron-based compounds suitable for an efficient 10B delivery to the cancerous tissues. The purpose of this work is to synthesize borosilicate nanoparticles by a sol–gel recipe, and to functionalize them with folic acid in order to promote their capture by the tumor cells. Whereas sol–gel is a promising technique for the synthesis of nanoparticles, in case of borosilicate systems this approach is affected by significant boron loss during preparation. Here we show that functionalization of borosilicate nanoparticles with folic acid can re…

inorganic chemicalsMaterials scienceBiocompatibilityFolic acidNanoparticles Borosilicate Folic acid BNCTchemistry.chemical_elementNanoparticleNanotechnologyBiomaterialsNanoparticleBorosilicateMaterials ChemistryReactivity (chemistry)BoronBorosilicate glassGeneral ChemistryCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsNeutron capturechemistryFolic acidCeramics and CompositesBNCTSurface modificationNanoparticlesNuclear chemistry
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