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L M Formosa et al.
International endodontic journal, 45(4), 326-336 (2011-11-03)
To investigate the physical properties of tricalcium silicate (TCS) with and without the addition of a radiopacifier and compare them with that of Portland cement (PC) and radiopaque PC in an mineral trioxide aggregate-like system. Tricalcium silicate, PC and radiopacified
Hang Zhang et al.
Optics express, 19(13), 12039-12044 (2011-07-01)
We investigated the generation of frequency up-converted femtosecond laser pulses by nondegenerate cascaded four-wave mixing (CFWM) in a bismuth-oxide glass (BI glass). Broad-bandwidth light pulses with different propagation directions were simultaneously obtained by using two small-angle crossing femtosecond laser pulses
Xinjuan Liu et al.
Journal of nanoscience and nanotechnology, 13(7), 5044-5047 (2013-08-02)
Bi2O3 was successfully synthesized via microwave-assisted reaction of Bi2O3 precursor in aqueous solution using a microwave system. Their morphologies, structures and photocatalytic performances in the degradation of methylene blue (MB) were characterized by scanning electron microscopy, transmission electron microscopy, energy
V S Kopp et al.
Acta crystallographica. Section A, Foundations of crystallography, 68(Pt 1), 148-155 (2011-12-22)
X-ray diffraction from films consisting of layers with different thicknesses, structures and chemical contents is analysed. The disorder is described by probabilities for different sequences of layers. Closed analytical expressions for the diffracted X-ray intensity are obtained when the layers
L M Formosa et al.
Dental materials : official publication of the Academy of Dental Materials, 28(5), 584-595 (2012-03-14)
Tricalcium silicate is the major constituent phase in mineral trioxide aggregate (MTA). It is thus postulated that pure tricalcium silicate can replace the Portland cement component of MTA. The aim of this research was to evaluate the microstructure and surface
Luonothar Antunes Schmitt Dreger et al.
Journal of endodontics, 38(3), 324-329 (2012-02-22)
Mineral trioxide aggregate (MTA) and Portland cement have been shown to be bioactive because of their ability to produce biologically compatible carbonated apatite. This study analyzed the interaction of MTA and white Portland cement with dentin in vivo. Seventy-two human dentin
Nurul Z Noor Azman et al.
Journal of synchrotron radiation, 20(Pt 5), 741-748 (2013-08-21)
The characteristics of the X-ray attenuation in electrospun nano(n)- and micro(m)-Bi2O3/polylactic acid (PLA) nanofibre mats with different Bi2O3 loadings were compared as a function of energy using mammography (i.e. tube voltages of 22-49 kV) and X-ray absorption spectroscopy (XAS) (7-20 keV). Results
Shuhong Xie et al.
Nanoscale, 4(2), 408-413 (2011-11-22)
Piezoresponse force microscopy (PFM) has emerged as the tool of choice for characterizing piezoelectricity and ferroelectricity of low-dimensional nanostructures, yet quantitative analysis of such low-dimensional ferroelectrics is extremely challenging. In this communication, we report a dual frequency resonance tracking technique
I N Leontyev et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 23(33), 332201-332201 (2011-07-22)
A Nd-doped BiFeO(3) thin film deposited on MgO substrate was studied by synchrotron diffraction. The ferroelectric nature of the film is proven by in-plane remanent polarization measurement. The highest possible symmetry of the film is determined to be orthorhombic, within
Junfeng Niu et al.
Chemosphere, 93(1), 1-8 (2013-05-28)
Photodegradation of tetracycline (TC) was investigated in aqueous solution by visible-light-driven photocatalyst Sr-doped β-Bi2O3 (Sr-Bi2O3) prepared via solvothermal synthesis. The decomposition of TC by Sr-Bi2O3 under visible light (λ>420nm) irradiation followed pseudo-first-order kinetics, and the removal ratio reached 91.2% after
Hagit Aviv et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 101(1), 131-138 (2012-10-24)
Bismuth oxide nanoparticles of 12.1 ± 3.0 nm diameter were prepared by thermal decomposition of bismuth acetate dissolved in ethylene glycol in the presence of an oxidizing agent. Functionalization and stabilization of the hydrophobic Bi(2)O(3) nanoparticles was accomplished by coating
Dirk Mansfeld et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(52), 14805-14810 (2011-11-29)
The reaction of [Bi(22)O(26)(OSiMe(2)tBu)(14)] (1) in THF with salicylic acid gave [Bi(22)O(24)(HSal)(14)] (2) first, which was converted into [Bi(38)O(45)(HSal)(22)(OH)(2)(DMSO)(16.5)]·DMSO·H(2)O (3·DMSO·H(2)O) after dissolution and crystallization from DMSO. Single-crystal X-ray diffraction analysis and ESI mass spectrometry associated with infrared multi-photon dissociation (IRMPD)
Parvez A Shaikh et al.
Physical chemistry chemical physics : PCCP, 15(14), 5091-5096 (2013-03-02)
Complex (multivalent/mixed valent) oxides involving two or more cations (e.g. ABO3, AB2O4 and A2B2O7) exhibit the most fascinating range of physical and chemical properties amongst the family of materials systems. There is growing interest in nanoscale forms of such oxides
Yanyan Guo et al.
Optics letters, 37(2), 268-270 (2012-08-03)
The 2.7 μm emission properties in Er3+-doped bismuthate (Bi2O3-GeO2-Ga2O3-Na2O) glass were investigated in the present Letter. An intense 2.7 μm emission in Er3+-doped bismuthate glass was observed. It is found that Er3+-doped bismuthate glass possesses high spontaneous transition probability A
Lu You et al.
ACS nano, 6(6), 5388-5394 (2012-05-18)
The novel strain-driven morphotropic phase boundary (MPB) in highly strained BiFeO(3) thin films is characterized by well-ordered mixed phase nanodomains (MPNs). Through scanning probe microscopy and synchrotron X-ray diffraction, eight structural variants of the MPNs are identified. Detailed polarization configurations
S Sanghi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 83(1), 94-99 (2011-09-06)
Glasses with composition 20CdO·xBi(2)O(3)·(79.5-x)B(2)O(3) (15≤x≤35, x in mol%) containing 0.5 mol% of Er(3+) ions were prepared by melt-quench technique (1150°C in air). The amorphous nature of the glasses was confirmed by X-ray diffraction. The spectroscopic properties of the glasses were
Nathan T Hahn et al.
ACS nano, 6(9), 7712-7722 (2012-08-16)
Bismuth oxy-iodide is a potentially interesting visible-light-active photocatalyst; yet there is little research regarding its photoelectrochemical properties. Herein we report the synthesis of BiOI nanoplatelet photoelectrodes by spray pyrolysis on fluorine-doped tin oxide substrates at various temperatures. The films exhibited
Rifath Sharmin et al.
Journal of the Air & Waste Management Association (1995), 62(9), 1032-1039 (2012-10-02)
Photocatalytic oxidation (PCO) is a promising technology for indoor air purification due to low operating cost, potentially long service life, and low maintenance. Ultraviolet light-emitting diode (UVLED) is a new concept in the field of PCO, which has several advantages
Xiantao Jiang et al.
Optics letters, 37(20), 4260-4262 (2012-10-18)
Near-infrared and mid-infrared (MIR) ultrabroad emission bands were observed in as-grown and annealed Bi(2)O(3)-GeO(2) binary glasses, in the wavelength ranges of 1000-1800 nm and 1800-3020 nm, respectively. The MIR emission band could appear through high doping ratio of Bi(2)O(3) or
C Nageswara Raju et al.
Luminescence : the journal of biological and chemical luminescence, 27(5), 334-340 (2011-09-21)
This article reports on the optical properties of Er3+ ions doped CdO-Bi2O3-B2O3 (CdBiB) glasses. The materials were characterized by optical absorption and emission spectra. By using Judd-Ofelt theory, the intensity parameters Ω(λ) (λ = 2, 4, 6) and also oscillatory strengths were
Atsushi Satsuma et al.
Sensors (Basel, Switzerland), 11(2), 2155-2165 (2012-02-10)
Mixed potential sensors were fabriated using yttria-stabilized zirconia (YSZ) as a solid electrolyte and a mixture of Au and various metal oxides as a sensing electrode. The effects of calcination temperature ranging from 600 to 1,000 °C and acid-base properties
Marco Antonio Hungaro Duarte et al.
Journal of endodontics, 38(3), 394-397 (2012-02-22)
The aim of this study was to evaluate the pH, calcium ion release, setting time, and solubility of white mineral trioxide aggregate (WMTA) and white Portland cement (WPC) combined with the following radiopacifying agents: bismuth oxide (BO), calcium tungstate (CT)
So-Youn Lee et al.
Journal of endodontics, 38(3), 405-410 (2012-02-22)
We previously reported that bismuth oxide containing Portland cement (BPC) showed similar biocompatibility to Portland cement (PC) in periodontal ligament cells. However, the bioactivity of simvastatin and Emdogain (Biora AB, Malmö, Sweden) on BPC was not reported. The aim of
Arun Prakash Periasamy et al.
Talanta, 87, 15-23 (2011-11-22)
In this work, preparation and characterization of a novel nanocomposite containing bismuth oxide (Bi(2)O(3)) nanoparticles and multiwalled carbon nanotubes (MWCNTs) was presented. Powder X-ray diffraction (XRD) studies revealed that as-synthesized Bi(2)O(3) nanoparticles are crystalline and belong to α-phase with monoclinic
Mechanosynthesis of the metallodrug bismuth subsalicylate from Bi2O3 and structure of bismuth salicylate without auxiliary organic ligands.
Vânia André et al.
Angewandte Chemie (International ed. in English), 50(34), 7858-7861 (2011-07-09)
Shuxing Wu et al.
Photochemistry and photobiology, 88(5), 1205-1210 (2012-04-26)
In this paper, Bi(2)O(3) and rare earth (La, Ce)-doped Bi(2)O(3) visible-light-driven photocatalysts were prepared in a Triton X-100/n-hexanol/cyclohexane/water reverse microemulsion. The resulting materials were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area, photoluminescence spectra
Sean P Berglund et al.
Physical chemistry chemical physics : PCCP, 15(13), 4554-4565 (2013-02-20)
A new dispenser and scanner system is used to create and screen Bi-M-Cu oxide arrays for cathodic photoactivity, where M represents 1 of 22 different transition and post-transition metals. Over 3000 unique Bi : M : Cu atomic ratios are screened. Of the 22
Gourav Singla et al.
Environmental technology, 35(9-12), 1520-1524 (2014-04-08)
Bi2-xTixO3+x/2 (x = 0.05, 0.10 and 0.15) photocatalysts are prepared by solid-state technique. The band gap of the prepared sample was estimated from the onset of UV-Vis absorption spectra. The photocatalytic activities of as prepared samples are investigated under UV
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