Materials Literature
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Cyclic molecules provide better stability for their aggregates. Typically in nature, the unique cyclic cell membrane lipids allow thermophilic archaea to inhabit extreme conditions. By mimicking the biological design, the robustness of self-assembled synthetic nanostructures is expected to be improved. Here we report…
Exploiting the emulsification properties of low cost, environmentally safe Gum Arabic we demonstrate a high yield process to produce a few layer graphene with a low defect ratio, maintaining the pristine graphite structure. In addition, we demonstrate the need for and efficacy of an acid hydrolysis treatment to remove…
Cellulosic fibers in Oil Palm Empty Fruit Bunches (OPEFB) are tightly packed with lignin, hemicelluloses, small depositions of wax, and inorganic elements. In the present work, eco-friendly reagents with low concentrations of 20% (v/v) formic acid and 10% (v/v) of 30% hydrogen peroxide were employed at 85 ºC for the e…
Graphene/polyaniline (PANI) nanocomposites were prepared by reducing graphene oxide with hydrazine in the presence of different amounts of polyaniline nanoparticles. In situ cryo-transmission electron microscope (TEM) images of a graphene oxide (GO)/PANI solution revealed that the PANI nanoparticles were anchored on t…
Mg alloys are among the lightest alloys but they are usually weak. Here we report a new mechanism to make them ultrastrong while maintaining good ductility. Stacking faults with nanoscale spacing were introduced into a Mg–8.5Gd–2.3Y–1.8Ag–0.4Zr (wt%) alloy by conventional hot rolling, which produced a yield strength o…
“Photothermometer”: A PAOF system was constructed using a diode laser as the energy source, an aqueous suspension of plasmonic nanostructures as the photothermal transducer, and a glass capillary for measuring the volumetric expansion of the suspension (see picture). The suspension could be driven to move up the capil…
As an alternative to polymer membranes, ultrathin free-standing single-walled carbon-nanotube network films are used to realize oil/water separation with ultrahigh flux. The films with tunable thickness of the tens of nanometer scale can effectively separate both micrometer and nanometer-sized surfactant-free and surf…
Since its debut in 2004, graphene has attracted enormous interest because of its unique properties. Chemical vapor deposition (CVD) has emerged as an important method for the preparation and production of graphene for various applications since the method was first reported in 2008/2009. In this Account, we review gra…
Silver nanoparticles and polymethylmethacrylate (PMMA) nanocomposite was prepared in situ by photo-induced thermal reduction method. The interfacial interaction of Ag nanoparticles and PMMA polymer is investigated using Fourier transform infrared spectroscopy (FTIR). Optical properties of Ag/PMMA films were characteri…
Ductile iron discovery in 1948 gave a new lease on life to the cast ironfamily. In fact these cast irons are characterised both by a high castability and by hightoughness values, combining cast irons and steel good properties. Ductile cast ironsare also characterised by high fatigue crack propagation resistance, altho…
The propagation behaviour of short cracks under cyclic loading is simulated.Short cracks determine up to 90% of fatigue life and exhibit substantially non-uniform propagation kinetics as compared to the growth of long cracks due to their strong interactions with microstructural features.Experimental investigations on…
Volume is indexed by Thomson Reuters CPCI-S (WoS).The focus of this special collection was set on materials properties and testing techniques, it covers most aspects of testing techniques on mechanical, chemical, physical properties and microstructures of ceramics, glass and concrete. It is hoped the collection will p…
The collection of peer reviewed papers C-MRS 2012 meeting includes 102 papers selected from Symposium P: Advanced processing of materials, Symposium V: Materials modeling and simulation, and Symposium W: Materials surface and interface.
The reaction of an arabinogalactan (AG) and its oxidized forms with the antituberculosis preparation isonicotinic acid hydrazide (INAH) was investigated. The chemical composition and certain physicochemical properties of the modified compounds were studied. A correlation was found between the concentration of carboxyl…
Tetramethyldivinyldisilazane-(triphenylphosphine)platinum(0) was prepared, characterized in solid state by X-ray crystallography and in solution by multinuclear magnetic resonance spectroscopy ((1)H, (13)C, (15)N, (29)Si, (31)P and (195)Pt NMR). Numerous signs of spin-spin coupling constants were determined by two-dim…
Complex permeability spectra of polycrystalline ferrites are analyzed on the basis of the model accounting for the effects of their grain size distribution (GSD). The model allows for explicit relation for absorption component. It shows, that by change of only one parameter (related with GSD) it is possible to turn fr…
Anomalous left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital anomaly present in approximately one in 300,000 live births. Here, we present a unique ALCAPA variant identified in a neonate. The left anterior descending artery originated posterolaterally on the main pulmonary artery, and the cir…
Aluminum (Al) doped Zinc Oxide (ZnO) thin films were prepared using sol-gel spin-coating method at different doping concentrations. The effects of Al doping concentration at 0~5 at.% on the Al doped ZnO thin film properties have been investigated. The thin films were characterized using Current-Voltage (I-V) measureme…
The measurements of the coercive force (Hc) of magnets are very difficult to determine as a function of the true effective fields in samples with arbitrary shapes. In this study, we tried to obtain the exact coercive force, M-H curve in high and high pulsed magnetic fields up to 20T by using a double-core pick-up. The…
Glass ceramic activated by rare earth ions are nanocomposite systems that exhibit specific morphologic, structural and spectroscopic properties allowing to develop interesting new physical concepts, for instance the mechanism related to the transparency, as well as novel photonic devices based on the enhancement of th…