Materials Literature
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Inspite of demanding research that has been undertaken for cancer treatment, cancer is a major cause of mortality. Available conventional treatment options of solid tumor are associated with serious side effects. Nanomedicines mediated fascinating approach may be effectively utilized for efficient tumor targeting by a…
Slow relaxation: Exergonic high-spin→low-spin relaxation after photoexcitation has been found to be exceedingly slow in a class of iron(II) complexes with hexadentate imine ligands. The thermal activation barriers that arise between the quintet- and singlet-spin manifolds are the highest ever recorded for spin crossov…
A series of chiral block copolymers (BCPs*), poly(4-vinylpyridine)- block -poly( l -lactide) (P4VP–PLLA), are synthesized through atom transfer radical polymerization and living ring-opening polymerization. Except for typical microphase-separated phases, such as lamellae (L) and hexagonally packed cylinders (HC), a he…
Polyethylene glycol (PEG)-based semi-IPNs have been widely used as hydrogel matrices in tissue engineering applications because of their inherent hydrophilicity and biocompatibility. Today, synthetic scaffolds are being widely used in tissue engineering and allied applications because they offer the ability to precise…
An approach to fabricate large-scale graphene nanoribbons (GNRs) with tunable ribbon widths is presented. Regular steps with variable heights from 1 to 100 nm can be prepared on a SiC substrate by a low-pressure etching process. Graphene can be epitaxially grown only on the side walls of the steps, thereby leading to…
Abstract In‐reactor blends of ultra‐high molecular weight polyethylene (UHMW‐PE) and high‐density medium molecular weight polyethylene (mMW‐PE) were prepared by precise multi‐stage slurry polymerizations. Correlations between polymerization conditions and polymer properties of the reactor powders were investigated by…
The patterning of graphene has gained a great deal of attention for practical applications such as electrical devices and sensors. Here we introduce a facile, versatile, and direct patterning method for the fabrication of electrically conductive graphene patterns on a flexible plastic substrate based on the laser tran…
An amphiphilic amino resorcinarene (T) was modified onto the surface of graphene oxide (GO) through covalent bond forces and non-covalent bond forces to prepare GO–T. The water-soluble graphene–T (GN–T) composite was prepared by the reduction of GO–T. Then, pre-prepared platinum nanoparticles (PtNPs) and different siz…
For the first time, well-dispersed submicrometer-sized YVO(4):Eu(3+) hollow spheres were successfully synthesized though a surfactant-free method by employing Y(OH)CO(3):Eu(3+) colloidal spheres as a sacrificial template and NH(4)VO(3) as a vanadium source. The synthetic process mainly consists of two steps, i.e., hyd…
The application of nanotechnology and nanoscience for medical purposes is anticipated to make significant contributions to enhance human health in the coming decades. However, the possible future mass production and use of these medical innovations exhibiting novel and multifunctional properties will very likely lead…
Gleich und entgegengesetzt: Chirale Tensidmoleküle bewirken die Bildung chiraler Nanokristalle aus der achiralen Phase von Quecksilbersulfid, indem vermutlich die Thiolatgruppen an die Hg-Ionen des wachsenden Kristalls binden. Die Erzeugung chiraler anorganischer Nanokristalle von gewünschter Größe und Form ist für vi…
The effects of agricultural flour content on surface roughness, wettability, and surface hardness of injection molded polypropylene (PP) composites was investigated. Four content levels of the waste sunflower stalk flour (WSF) were mixed with the PP with and without maleic anhydride grafted PP (MAPP) as a coupling age…
The design, analysis and implementation of new metamaterial transmission line (TL) are presented. The proposed metamaterial TL exhibits dual composite right/left-handed characteristics at low/middle-frequency bands and conventional composite right/left-handed characteristics at middle/high-frequency bands. Therefore i…
An analytical expression of the relationship between polarized reflectivities over the planar surface is obtained. A comparison with the reflectivities calculated using the Fresnel equations for a given refractive index and viewing angle demonstrated that the ‘Hong approximation’, which causes erroneous results, is no…
A series of new (1 − x)Pb(Lu1/2Nb1/2)O3–xPbTiO3 (PLN–xPT) binary ferroelectric crystals with high Curie temperature have been successfully obtained firstly by top-seed solution growth technique. A solid-state phase diagram in the low temperature range has been established based on the form of single crystals, which re…
The polycrystalline perovskites La2/3(Ca1−x Sr x )1/3MnO3 (x=0,0.2,0.4,0.6,0.8,1) were successfully prepared by a modified method of solid-state reactions, in which the ingredient mixture with ethanol as a liquid milling medium to form suspension was milled by high-energy ball milling for 10 h and sintered in air at 1…
The interaction between a water–ice bilayer and graphite is investigated by means of standard and van der Waals-corrected density functional theory. The long-range van der Waals attraction proves to be dominant in this context due to the absence of strong chemical bonding between the ice bilayer and graphite. Our calc…
Here, we synthesized the polystyrene/polysilsesquioxane (PS/PSQ) core/shell latex particles via emulsion polymerization, which behave as an amusing morphology. First, the nanosized PSQ particles were prepared by the hydrolysis-condensation reaction of γ-methacryloxypropyl trimethoxysilane (MPTS) in ethanol medium. Sub…
Further improvement of phase change memory devices based on Ge-Sb-Te alloys imposes the reduction of the active cell dimensions to the nanoscale. We investigate the atomic arrangement of Ge(1)Sb(2)Te(4) and Ge(2)Sb(2)Te(5) nanowires. We identify the stacking sequence in each crystal structure by combining the direct o…
A combination of fixed frequency dielectric measurements (10 3 to 10 6 Hz) and impedance spectroscopy reveal evidence of (nonferroelectric) relaxor-like behavior in the temperature range ∼600–750 K for the stoichiometric sillenite phase Bi 12 SiO 20 (space group I 23, a = 10.1034(5) Å). Variable temperature Raman Spec…