Synthesis, characterization and application of luminescent silica nanomaterials
Monodispersed luminescent nanoparticles for ink-jet printing and bioimaging.
Materials Literature
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Synthesis of WS2xSe2-2x alloy nanosheets with composition-tunable electronic properties
Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have recently emerged as a new class of atomically thin semiconductors for diverse electronic, optoelectronic, and valleytronic applications. To explore the full potential of these 2D semiconductors requires a precise control of their band gap and el…
Physical nature of rail strengthening in long term operation
Regularities of changes in structure-phase states and the defect substructure of rail surface layers up to 10 mm along the fillet in long-term operation (the gross tonnage 1000 mln tons) were determined by methods of transmission electron diffraction microscopy and by measuring microhardness. The possible reasons of t…
The formation of H bubbles at small-angle tilt grain boundaries in W films
. According to our calculations, we propose a possible formation mechanism of H bubbles observed in the experiment, which is valuable for improving the service performance of W as a plasma-facing material in nuclear fusion reactors.
Selective Abnormal Growth Behavior of Goss Grains in Magnetostrictive Fe-Ga Alloy Sheets
Selective abnormal growth behavior of Goss grains was investigated by interrupting secondary recrystallization process in magnetostrictive (Fe83Ga17)99.9(NbC)0.1 rolled alloy sheets. The evolution of microstructure and texture was analyzed by electron back-scattered diffraction while ramping the temperature from 1123…
In situ mass spectrometry analysis of chemical vapour deposition of TiO 2 thin films to study gas phase mechanisms
<italic>In situ</italic> mass spectrometry measurements has been used to study as phase intermediates in CVD of TiO <sub>2</sub> thin films.
Corrosion inhibition of mild steel in acidic solution by cow dung extract as an eco-friendly inhibitor
The anti corrosion potential of cow dung was assessed using weight loss, Electrochemical techniques, Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) along with Energy dispersive spectroscopy (EDS), and Atomic absorption spectroscopy (AAS). The results show that cow dung extract (CDE)…
Fabrication of Three-Dimensional (3D) Copper/Carbon Nanotube Composite Film by One-Step Electrodeposition
A three-dimensional (3D) composite film containing copper nanostructures and carbon nanotubes (3DC/CNT composite film) was fabricated by one-step electrodeposition. The 3DC/CNT composite film was formed under galvanostatic conditions using a copper sulfate bath containing CNTs and polyacrylic acid which acts as both a…
Deformation and Damage Accumulation in a Ceramic Composite under Dynamic Loading
Methods of computer modelling were used to investigate the processes of deformation and microdamage formation in ceramic composite materials under intense dynamic loading. It was shown that there was no damage caused by dynamic compression in the vicinity of phase borders of a nanostructured aluminum oxide matrix and…
Structural Characteristics of the Egyptian Clay as a Low-Cost Adsorbent
A study of the characteristics of clay from El-Sheikh Fadl Village, El-Minia governorate in Egypt has been carried out. A crucial factor in the applying clay as a low-cost adsorbent, however, is the understanding of the physical, chemical, mineralogical, and colloidal properties of these clays. The characteristics of…
Applications of synchrotron radiation scattering to studies of plasma facing components at Siberian Synchrotron and Terahertz Radiation Centre
The paper presents an overview of plasma-material interaction studies at the Siberian Synchrotron and Terahertz Radiation Centre. The measurements of recrystallization and surface texturing are demonstrated. The growth of grain size after the exposure by electron beam was detected using two-dimensional diffractometry.…
Enhanced magnetic properties in epitaxial self-assembled vertically aligned nanocomposite (Pr 0.5 Ba 0.5 MnO 3 ) 0.5 :(CeO 2 ) 0.5 thin films
Magnetic properties are strongly enhanced in vertically aligned nanocomposite Pr <sub>0.5</sub> Ba <sub>0.5</sub> MnO <sub>3</sub> :CeO <sub>2</sub> films by introducing CeO <sub>2</sub> into Pr <sub>0.5</sub> Ba <sub>0.5</sub> MnO <sub>3</sub> matrix.
3D reticulate Co x Ni 3−x S 2 nanostructure on nickel foam as a new type of electroactive material for high-performance supercapacitors
3D reticulate Co <sub>x</sub> Ni <sub>3−x</sub> S <sub>2</sub> nanostructures were grown on nickel foam using a simple precursor sulfuration route.
Preparation of pH-responsive hollow poly(MAA-co-EGDMA) nanocapsules for drug delivery and ultrasound imaging
The biocompatible hollow poly(MAA- <italic>co</italic> -EGDMA) nanocapsules with size of 260 nm shown controlled DOX drug delivery and effective ultrasound imaging.
Direct evaluation of CVD multilayer graphene elastic properties
Rolling semiconductor tubes with graphene layers allows the integration of distinct material classes as well as the evaluation of elastic properties.
Chiral polyoxomolybdate-based hybrid compounds obtained by spontaneous resolution: syntheses, structures and non-linear optical properties
By spontaneous resolution, two chiral hybrid 2D architectures [MMo <sub>6</sub> O <sub>21</sub> (glycine) <sub>3</sub> ] <sup>2−</sup> (M = Te <bold>1</bold> , Se <bold>2</bold> ) were obtained, which show an SHG efficiency of about 3.5 and 3.7 × KDP.
Ultrabright organic fluorescent microparticles for in vivo tracing applications
We report the in vivo distribution, toxicity and metabolism of micro-sized fluorescent organic particles and their applications in cerebral blood flow tracing. The fluorescent microparticles exhibit bright fluorescence, good photo-stability and low toxicity; therefore, they are ideal for long-term non-invasive in vivo…
Modeling the reflection of the electromagnetic waves at a diffraction grating generated on a curved surface
This article describes mathematical tools that allow one to simulate the reflection at diffraction gratings generated on an arbitrary surface. To solve this problem an analog of the Kirchhoff method was used. As an example, we considered reflection at a grating generated on a spherical surface. For modelling such syst…
Upconversion nanoparticle arrays for detecting glycated hemoglobin with high sensitivity and good reusability
Lanthanide-doped upconversion nanoparticles (UCNPs) have attracted extensive interest in bio-applications due to their unique optical properties by converting near infrared excitation to visible emission.
Evidence of competition in the incorporation of Co 2+ and Mn 2+ ions into the structure of ZnTe nanocrystals
Glass-embedded Zn <sub>1−x−y</sub> Mn <sub>x</sub> Co <sub>y</sub> Te nanocrystals (with <italic>x</italic> = 0.01 and <italic>y</italic> varying from 0.000 to 0.800) were successfully synthesized using a protocol based on the melting–nucleation synthesis route and herein investigated by several experimental technique…