Materials Literature
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Oxyfluogermanate glasses with good thermal stability were prepared by melt-quenching method. The investigation of 2.7 μm fluorescence spectra and energy transfer mechanism was performed pumped by an 808 nm laser diode. The 2.7 μm radiative transition probability and emission cross section are 32.62 s−1 and 12.88 × 10−…
Objective : The study mainly focuses on the preparation and characterization of Zinc oxide nanoparticles using an aqueous stem extract of Tinospora cordifolia. Methods : Zinc Oxide nanoparticles were synthesized by a biological method using the stem extract of Tinospora cordifolia using Zinc acetate dehydrate in the p…
Structural, optical, and surface potential properties of CdSe nanoparticles (NPs) prepared on ZnS thin-films have been investigated. CdSe NPs/ZnS thin-films with varying CdSe NPs diameters are synthesised by sequential radio frequency magnetron sputtering technique. A blue shift in the optical absorption edge and enha…
The "tailor effect" of fluoride, exclusively as a terminal rather than a bridge, was applied successfully to design low-dimensional structures in the system of transition metal germanophosphates for the first time. Two series of new compounds with low-dimensional structures are reported herein. K[M(II)Ge(OH)2(H0.5PO4)…
Synthesis of well-defined, surface-initiated poly( N -octyl- p -benzamide) brushes was demonstrated using a new “grafting from” chain growth technique. A solution-based chain growth polycondensation technique was adopted from literature and modified to form a polyaramid brush by taking advantage of the differences in…
We investigated the antioxidant properties of detonation nanodiamond modified by Fenton's reagent. Diamond nanoparticles functionalized with hydroxyl groups were examined in soybean oil; the aim of this study was to determine their antioxidant properties by examining the effect on the lipid peroxidation process. In or…
The iron based hardfacing alloys were produced using slag free self-shielded flux cored wires with varying niobium contents. The results show that NbC acted as the nucleus of primary M 7 (C, B) 3 (M = Cr, Fe mainly) carbides and decreased the amount of M 7 (C,B) 3 carbides when niobium was added into the alloys. When…
The LytB/IspH protein catalyzes the last step of the methylerythritol phosphate (MEP) pathway which is used for the biosynthesis of essential terpenoids in most pathogenic bacteria. Therefore, the MEP pathway is a target for the development of new antimicrobial agents as it is essential for microorganisms, yet absent…
We employ resonant soft x-ray diffraction to individually study the magnetic ordering of the Mn and the Tm sublattices in single-crystalline films of orthorhombic $(o\text{\ensuremath{-}})\phantom{\rule{0.16em}{0ex}}\mathrm{TmMn}{\mathrm{O}}_{3}$. The same magnetic ordering wave vector of $(0\phantom{\rule{0.16em}{0ex…
The hollow core of a carbon nanotube (CNT) provides a unique opportunity to explore the physics, chemistry, biology, and metallurgy of different materials confined in such nanospace. Here, we investigate the nonequilibrium metallurgical processes taking place inside CNTs by in situ transmission electron microscopy usi…
Two-dimensional (2D) layered materials receive a lot of attention because of their outstanding intrinsic properties and wide applications. In this work, the structural, electronic and magnetic properties of nickel hydroxides (Ni(OH)2) and nitrides XN (X = B, Al, and Ga) heterostructures are studied by first-principles…
The influence of the micro topology on the solid/water wetting and adhesion behaviors is studied in this work. By simply tailoring the morphology, superhydrophobicity can be achieved on a weak hydrophobic surface. And the further fine‐tuning of the surficial geometry realizes the conversion of superhydrophobic states,…
ABSTRACT Graphene/epoxy nanocomposite coatings were formulated by applying different dispersion and preparation methods to determine whether the coatings might be a potential gas barrier material for irradiated graphite waste which is known to release radioactive gases like tritium ( 3 H 2 ). Helium was used as a subs…
Abstract An integrated experimental and computational investigation reveals that surface lattice oxygen of copper oxide (CuO) nanoleaves activates the formyl CH bond in glucose and incorporates itself into the glucose molecule to oxidize it to gluconic acid. The reduced CuO catalyst regains its structure, morphology,…
Protons dynamics in borosilicate glasses of various compositions (SiO 2 /B 2 O 3 /NaO/CaO/X, with X = Al 2 O 3 or ZrO 2 ) at various stages of alteration have been characterized at a picosecond scale using quasielastic neutron scattering (QENS). The results obtained were compared to the one from porous silica-based ma…
The evolution equation derived by Xiang (SIAM J. Appl. Math. 63:241–258, 2002) to describe vicinal surfaces in heteroepitaxial growth is (1) where h denotes the surface height of the film, and H is the Hilbert transform. Existence of solutions was obtained by Dal Maso et al. (Arch. Rational Mech. Anal. 212: 1037–1064)…
ABSTRACT Multiwalled carbon nanotubes (MWCNTs), both oxidized and amine functionalized (triethylenetetramine—TETA), have been used to improve the mechanical properties of nanocomposites based on epoxy resin. The TGA and XPS analysis allowed the evaluation of the degree of chemical modification on MWCNTs. Nanocomposite…
Abstract Ultrastable foams are made very simply by adding salt (NaCl or KCl) to sodium dodecyl sulfate. The addition of high concentrations of salt leads to the precipitation of the surfactant on the bubble surfaces and as crystals in the interstices between the bubbles. As a consequence, the ageing of the foams is st…
Abstract Multitopic organic linkers can provide a means to organize metal cluster nodes in a regular three‐dimensional array. Herein, we show that isonicotinic acid N ‐oxide (HINO) serves as the linker in the formation of a metal–organic framework featuring Dy 2 single‐molecule magnets as nodes. Importantly, guest sol…
The Doppler effect has well-established applications in astronomy, medicine, radar and metrology. Recently, a number of experimental demonstrations of the inverse Doppler effect have begun to appear. However, the inverse Doppler effect has never been observed on an electronically reconfigurable system with an external…