Materials Literature
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Multiferroic ceramics Bi 0.9 La 0.1 FeO 3 are synthesized by solid-state reactions and sintered at various temperatures. The rhombohedral structure with the space group R3c is confirmed by means of x-ray diffraction, and their multiferroic properties are investigated. Bi 0.9 La 0.1 FeO 3 ceramics sintered at 880°C are…
Two new isomeric aminomethyl corrole derivatives of [5,10,15-tris(pentafluorophenyl)corrolato]gallium(III) were synthesized with pyridine (py) molecules as axial ligands. When investigated by electrospray ionization mass spectrometry, in the positive and the negative ion modes, these compounds showed an unusual gas-ph…
A novel pyridostigmine bromide poly (lactic acid) nanoparticles (PBPNPs) was prepared to obtain sustained release characteristics of PB. A central composite design approach was employed for process optimization. The in vitro release studies were carried out by dialysis method and conducted using four different dissolu…
ZnO nanoparticles were synthesized using sol–gel method. The structural and optical properties were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution TEM (HRTEM), Raman spectroscopy, and photoluminescence (PL). XRD analysis demonstrates…
We observed the presence of contaminating NADH oxidation activity in maltose binding protein (MBP) fusion proteins expressed in Escherichia coli and purified using conventional amylose resin-based affinity chromatography. This contaminating NADH oxidation activity was detectable with at least four different enzymes fr…
The effect of Schiff base compounds, namely, ethylenediamine bis-isatin (EDBI), hexane 1,4-diamine bis-isatin (HDBI) and thiocarbohydrazide bis-isatin (TCBI) were investigated by gravimetric, potentiodynamic polarization, electrochemical impedance spectroscopy, atomic force microscopy and scanning electron microscopy.…
Abstract Different dLc coating types are applied at an industrial scale by sulzer Metco thin Film. The coatings are generated with different coating architecture. Deposition methods are: magnetron sputtering, electron beam evaporation and PA‐cVd. Reactive magnetron sputtering is used to deposit metal containing a‐c:h…
The crystal structure of the EuLaCuS 3 complex sulfide synthesized for the first time has been solved by X-ray powder diffraction. Crystals are orthorhombic, space group Pnma , Ba 2 MnS 3 -type structure, a = 8.1297(3) Å, b = 4.0625(1) Å, c = 15.9810(4) Å, V = 527.80(3) Å 3 , Z = 4, and ρ calc = 5.669 g/cm 3 . The La…
Carboxymethyl chitosan (CMCH) from two molecular sizes (oligomer and polymer) and three different sources (shrimp, crab and squid) of chitosan were prepared by carboxymethylation reaction. The CMCH films were cast and their mechanical properties. For molecular sizes, the polymer CMCH films showed higher %elongation (%…
In this work, poly (l-lactic acid) (PLLA) microencapsulated urea as fertilizer was prepared in water in oil in water (W/O/W) system. PLLA used as capsule shell was prepared by polycondensation of l-lactic acid with p-toluene sulfonic acid as a catalyst at 140 °C. The prepared PLLA was used to encapsulate urea. Firstly…
Charge transport processes at the interface of n -GaAs (100) with an aqueous HCl solution are studied by electrochemical impedance spectroscopy. It is found that when open-circuit potential and anodic potentials are applied to the semiconductor the impedance spectra contain two capacitive semicircles corresponding to…
The surface of pristine Fe3O4 nanoparticles is first modified with a silane coupling agent methacryloxypropyltrimethoxysilane (MPTMS), which provides a reactive C = C bond to copolymerize with acrylic acid (AA) by in situ polymerization in scCO2, resulting in the formation of covalently bonded PAA–Fe3O4 nanocomposite.…
Elemental composition and morphology of oxide coatings formed on stainless steel, nickel alloy (nonvalve metals), and titanium (valve metal) by plasma-electrolytic method combined with the extraction-pyrolytic technique are reported. It is shown that combination of these methods is promising for obtaining oxide coatin…
Boron carbides with carbon contents (σ) of 7–24 at. % were prepared by SHS method and their lattice parameters were determined by high-precision XRD analysis. An unusually wide spread in the literature data on lattice parameters of boron carbide as a function of σ was associated with the process of crystal ordering ca…
El objetivo de este trabajo fue la preparacion de acido alfa lipoico inmovilizado en nanopartsculas de quitosano preparadas por la gelificacion ionotropica entre el quitosano y pirofosfato y tripolifosfato de sodio y utilizando poloxamero 188 como estabilizante. Se determino el tamano, distribucion de tamanos, potenci…
In this paper, my experience of over 30 years in carbon materials and carbon nanotube (CNT) researches is reported. Moreover, an overview of the background of the development of CNT synthesis, the present status of CNT science and technology, and the future prospect of CNTs are described.
The present article deals with the configurational probabilities of a smectogen N-n-undecyl-Dgluconamide (GAM11). The complete neglect differential overlap (CNDO/2) method has been employed to compute the net atomic charge and atomic dipole moment components at each atomic center. The modified Rayleigh-Schr¨odinger pe…
Quantum Dots (QDs) for bio-imaging applications need to be water-stable, exhibit high brightness and physico-chemical stability in order to prevent the leakage of toxic ions. In the present work, the direct synthesis of water-soluble CdSe quantum dots and their surface functionalization were achieved through a micro-w…
We propose a bulk negative refractive index (NRI) metamaterial composed of periodic array of tightly coupled metallic cross-pairs printed on the six sides of a cube for applications of superlenses. The structural characteristics of the three-dimensional (3D) metamaterial consist in the high symmetry and the superposit…
A number of novel carbonyl(1,4,8,11,15,18,22,25-octaalkylphthalocyaninato)-ruthenium(II) complexes were prepared by metal insertion with Ru 3 (CO) 12 . The new compounds have been characterized by 1 H NMR, 13 C NMR, IR, UV-vis and mass spectroscopy. This study demonstrated that this type of complexes and specifically…