Materials Literature
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BACKGROUND: Template-target sequence alignment and loop modeling are key components of protein comparative modeling. Short loops can be predicted with high accuracy using structural fragments from other, not necessairly homologous proteins, or by various minimization methods. For longer loops multiscale approaches emp…
Myxomycetes, the true slime molds, are highlighted in research and teaching that emphasizes various stages of the life cycle as experimental models. Past and current phylogenetic classifications of Myxomycetes on the tree of life are presented. Life cycle stages are illustrated, described, and discussed. Simple labora…
A new general reaction for the preparation of isomerically pure hydroxyalkylated C(60) monoadducts, via the free radical photochemical addition of alcohols to [60]fullerene, is described.
A comprehensive multinuclear solid-state NMR study of scandium-substituted BaZrO3 is reported. Static low field and MQMAS very high field 45Sc NMR data revealed the presence of both 5- and 6-coordinated scandium atoms, 5-coordinated scandium arising from Sc nearby an oxygen vacancy. 17O NMR spectra showed the presence…
We demonstrate a compact, low crosstalk, low loss, and flat passband demultiplexer based on an echelle grating fabricated in the silicon-on-insulator (SOI) platform. The demonstrated 12 channel demultiplexer has an 8-nm channel spacing, 5.5-nm flat passband, 1.7-dB on-chip loss, and better than 25-dB optical crosstalk…
The corrosion resistance of electrodeposited Cr and Ni-Mo coatings and the influence of heat treatment on the crystallographic structure, morphology and microhardness properties were investigated here. The characterisations were carried out using scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy d…
Rumex obtusifolius L. (Polygonaceae), commonly known as 'broad-leaf dock', is one of the most common Irish wayside weeds, and it also occurs in silage fields, on river banks, in ditches and on waste grounds. The ethnobotanical uses of this species include its use as an antidote to nettle, depurative, astringent, laxat…
Self-assembled tubular silica-based nanostructures can be prepared using a simple, low-energy intensive and benign protocol under mild conditions (<100 °C) using microwave irradiation and conventional heating. These nanotubes were found to contain metal nanoparticles that are catalytically active in the microwave-assi…
We report for the first time an ionic fluid based on hydroxylated fullerenes (fullerols). The ionic fluid was synthesized by neutralizing the fully protonated fullerol with an amine terminated polyethylene/polypropylene oxide oligomer (Jeffamine). The ionic fluid was compared to a control synthesized by mixing the par…
Abstract: Biochemical conversion of lignocellulosic biomass to ethanol provides a sustainable energy production system. Bamboo is a fast growing woody grass that has great potential to be used as a domestic feedstock for fuel ethanol production. It consists of about 40 % cellulose, and 27 % hemicelluloses. In this inv…
Reactions of N-diphenylphosphanylmethyl-4-aminopyridine (dppmapy) with K[Ag(CN)(2)], Ag(dca) (dca = dicyanamide), AgSCN, AgCl, AgBr or AgI gave rise to six [Ag(2)X(2)]-based (X = CN(-), dca, SCN(-), Cl(-), Br(-) and I(-)) compounds, [{Ag(2)(CN)(2)(dppmapy)}.0.5CHCl(3)](n) (1), [Ag(2)L(2)(dppmapy)(2)](n) (2: L = dca; 3…
BACKGROUND: We have evaluated the antimicrobial properties of Ag-based nanoparticles (Nps) using two solid phase bioassays and found that 10-20 μL of 0.3-3 μM keratin-stabilized Nps (depending on the starting bacterial concentration = CI) completely inhibited the growth of an equivalent volume of ca. 103 to 104 colony…
Concrete containing various supplementary cementitious materials (SCMs) such as silica fume, fly ash, and slag has improved properties. Nanomaterials, new SCMs with possible applications in concrete, have the smallest particle size (less than 100 nm). Nanomaterials are reactive because of the small size and large surf…
Problem statement: ANRPC is a refinery based in Alexandria, Egypt.The plant was subjected to several shutdowns due to tripping of large induction motors, either by under voltage or by over current relays, sometimes by the mechanical protection.The main cause for such unplanned shutdowns was voltage sags.The Dynamic Vo…
It is well established that micellar structures can form in non-aqueous solutions. The resulting nanostructures, commonly referred to as ‘reverse micelles’, are characterized by a polar core and hydrophobic shell. Such micelles have typically been generated from hydrophobically-modified polar branched polymers and eva…
The effect of pre-straining in combination with pre-aging on bake-hardening behavior of an Al-0.6 mass%Mg-1.0 mass%Si alloy was investigated by means of Vickers hardness test, electrical conductivity measurement, differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). Hardness change and DS…
In this paper, the equilibrium behavior of an immiscible two phase fluid on a rough surface is studied from a phase field equation derived from minimizing the total free energy of the system. When the size of the roughness becomes small, we derive the effective boundary condition for the equation by the multiple scale…
Two ladder-type conjugated molecules, i.e., 2,2′-(2,7-dihexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene-4,9-diylidene) dimalononitrile (1) and 2,7-dihexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene-4,9-dione (2) were synthesized in high yields, and their electrochemical properties, single crystal structures…
A new prodrug of gemcitabine, based on the covalent coupling of squalene to gemcitabine (GemSQ), has been designed to enhance the anticancer activity of gemcitabine, a nucleoside analogue active against a wide variety of tumors. In the present study, the feasibility of encapsulating GemSQ into liposomes either PEGylat…
The kinetics of the (110)bcc//(111)fcc heterointerface of iron during the fcc–bcc phase transformation has been investigated by molecular dynamics simulation. The various orientation relationships (ORs) between Nishiyama–Wasserman (N–W) and Kurdjumow–Sachs (K–S) ORs, which are experimentally observed, were examined. T…