Materials Literature
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We describe a Hg2+-selective sensing film based on the incorporation of a spirocyclic phenylthiosemicarbazide rhodamine 6G derivative (called FC1) into a novel hydrophilic water-insoluble copolymer synthesized by Reverse Atom Transfer Radical Polymerization. It is demonstrated that the chemodosimeter preserves its sen…
Carbon nanotubes (CNTs) are promising building blocks for nanodevices owing to their superior electrical, thermal and mechanical properties. One of the key issues for their study and application is the efficient location, transfer and manipulation of individual CNTs. In this contribution, we show that the manipulation…
Chatter in rolling mills is the undesirable vibration observed in most of the rolling mills operating at high speed and rolling thin strip. In this work the authors discuss some problems relative to the vibrations occurring in a S6-high cold rolling mill. It can result in not good surface finish for some applications…
Ordered, extra-large mesopores with highly loaded gold nanoparticles (AuNPs) exhibits unique sintering- and coking-resistant properties in gas-phase, cyclohexanol selective aerobic oxidation.
One-dimensional multiferroic nanostructures have received a great deal of recent attention. This paper presents the synthesis of Ba0.7Sr0.3TiO3 (BSTO) and Ni0.8Zn0.2Fe2O4 (NZFO) co-reinforced Bi0.9La0.1Fe0.95Mn0.05O3 (BLFMO) nanotubes with one closed end. The aim was to obtain one-dimensional multiferroics with higher…
Electro or chemical oxidation of ferrocenylmethylenepyran gave an ethanediferrocenylbispyrylium salt through the dimerization of a ferrocenylpyran radical-cation (C–C bond making). Electro or chemical reduction gave back the ferrocenylmethylenepyran (C–C bond breaking). This electrochemical reverse system constitutes…
Polymeric micelles (∼10 nm) have been prepared from the amphiphilic oligomer comprising oligomeric polystyrene as the hydrophobic inner core and half of EDTA (-N(CH₂COOH)₂) as the hydrophilic outermost shell. After chelating cisplatin with -N(CH₂COOH)₂ in water, polymeric micelles containing Pt on the spherical surfac…
The sensing of lipopolysaccharide (LPS) relies on the synergy of multiple electrostatic and hydrophobic interactions between LPS and the sensor. However, how non-covalent interactions are coordinated to impel the recognition process still remains elusive, and the exploration of which would promote the development of L…
Diatoms represent an important class of aquatic phototrophs. They are not only one of the major contributors to global carbon fixation, but they also play a key role in the biogeochemical cycling of silica. Molecular identification methods based on conserved DNA sequences, such as internal transcribed spacer (ITS) hav…
Combined lignocellulose fractionation technology (LFT) and separate hydrolysis fermentation (SHF) for the production of ethanol from bamboo residues and corn stover were investigated by using Zymomonas mobilis. In this process, the highest ethanol concentration reached 4.72 g/l from pretreated bamboo shoots shell fibe…
We demonstrate the fabrication of n-GaN:Si/p-GaN:Mg nanowire arrays on (111) silicon substrate by metal organic chemical vapor deposition (MOCVD) method .The nanowires were grown by a newly developed two-step growth process. The diameter of as-grown nanowires ranges from 300-400 nm with a density of 6-7 × 10(7) cm(-2)…
In magnetorheological fluids, the viscosity usually increases with the field and the non-Newtonian character of these complex fluids may vary significantly. We provide a new method to measure the relative viscosity of a superparamagnetic colloid, by applying a magnetic field during a spin-coating process, which involv…
In today’s market place, the selection of material for a particular application is a challenging task, as the selected material directly determines the visible quality and the cost of the product. The large number of available materials, together with the complex relationships between various selection parameters, oft…
Novel porphyrin derivatives bearing additional pyrene or ferrocene units as light harvesting antenna systems were synthesized and fully characterized. Following a covalent functionalization approach for single-walled carbon nanotubes (SWCNTs), stable SWCNT suspensions in common organic solvents were produced. Subseque…
The activity concentrations of natural radionuclides 226Ra, 232Th and 40K in bauxite ore, alumina, dross tailing, aluminium scraps and soil samples collected from an aluminium industry in Nigeria were determined by gamma ray spectroscopy method. The mean values of 226Ra, 232Th and 40K content of the samples ranged fro…
We obtained amorphous thin films by evaporation and condensation in three component systems based on As, Se and Ag. The aim was to investigate the influence of the third component on the thin film structure and optical properties. The refractive index and the film thickness were determined from the upper and lower env…
A facile method to deposit continuous Au shells on Fe3O4 colloidal superparticles was developed by introducing Tween-20 as a surface modification agent to maintain the colloidal stability of the Fe3O4 superparticles and provide nucleation and growth sites for the Au shells. The Fe3O4–Au core–shell particles showed exc…
Finite Element Modeling for Cathodic Protection of Pipelines under Simulating Thermocline Environment in Deep Water Using a Dynamic Boundary Condition, Li, Chengjie, Du, Min, Sun, Jixing, Li, Yan, Liu, Fuguo
Three ethanedithiol-linked bisquinoline derivatives with a different number of methoxy substituents on the aromatic ring exhibit a significant fluorescent response toward mercury(II) and iron(III) ions. Fluorescence enhancement (OFF–ON), ratiometric and fluorescence quenching (ON–OFF) responses were achieved with the…
Superabsorbent hydrogels based on poly (acrylamide-co-acrylate) and different kaolins, were prepared by free-radical aqueous copolymerization. FTIR and WAXS techniques were employed for characterization of a series of hydrogels, obtained by varying the percentage of clay, crosslinking and constitution of kaolin. The w…