Materials Literature
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Microwave-assisted syntheses of five new series of rufigallol-based mesogens are reported with branched alkyl chains at the peripheral positions. The chemical structures of these newly synthesised compounds were determined by 1H nuclear magnetic resonance (NMR), 13C NMR, infrared spectroscopy, ultraviolet spectroscopy…
Magnetoelectric properties of layered heterostructures (FM/PZT/FM)n (n≤ 3) obtained by ion-beam sputtering deposition of ferromagnetic metal (FM), where FM is the cobalt (Co) or permalloy Ni78Fe22, onto ferroelectric ceramic based on lead zirconate titanate (PZT) have been studied. The polished ferroelectric plates in…
This study presents the crystalline and luminescence properties of silicon-rich oxide (SRO)/SiO2 superlattices in which the SRO layers were prepared with a low-energy (<60 eV) argon ion-beam treatment. Experimental results evidenced that density of the Si nanocrystals (NCs) in the SRO layer was increased by ion-beam t…
Controlling a spin current by electrical means and eliminating the use of ferromagnetic contacts becomes a focus of research in spintronics, as compared with conventional magnetic control methods, electrical one could reduce the dimensions and energy consumption of integrated devices. Inspired by recent progress of co…
A modification of the contact of graphene with ferromagnetic electrodes in a model of the graphene spin filter allowing restoration of the graphene electronic structure is proposed. It is suggested for this aim to intercalate into the interface between the graphene and the ferromagnetic (Ni or Co) electrode a Au monol…
Collagen thin films consisting of randomly oriented and oriented collagen fibrils/fibers are fabricated by hydrodynamic flow and spin coating, and then they are characterized by atomic force microscopy (AFM). Fibroblasts are cultured on these films in order to correlate their morphology and alignment, which are assess…
The discovery of heterogeneous catalysts capable of direct gas-phase production of propylene oxide (PO) from propylene and molecular oxygen remains a challenge in industrial catalysis. The SnO 2 –CuO–NaCl/SiO 2 system has been shown to produce PO at 55–60% selectivity with propylene conversion of 1% at 250 °C and 1 ba…
In the present study, characterization and morphological study of oil palm ash (OPA) and thermal properties of OPA-filled natural rubber (NR) compounds were carried out. The morphological study revealed that the OPA particle was irregular with rough surface and porous structure. Energy dispersive x-ray analysis and an…
Metamaterial has demonstrated exotic electromagnetic (EM) properties and various applications, for example perfect absorbers. Cascaded perfect absorbers further extend the spectral engineering ability. Perfect alignment of subcells was usually presumed in previous studies. We numerically investigated the effect of lat…
The confined orientational motions of fluorescent dye molecules diffusing along one dimension (1D) within individual silica mesopores are investigated by simultaneous single molecule tracking (SMT) and single molecule emission dichroism (SMED) methods. Four perylene diimide (PDI) dyes of different lengths are employed…
Functionalization of vertically aligned multiwalled carbon nanotube carpets was performed via exposure to CF 4 or Ar:F 2 RF plasmas. Rapid fluorination was observed via X-ray photoelectron spectroscopy (XPS) with surface fluorine concentration, bonding type, and patterning dependent on gas mixture and exposure time. S…
We describe a method for deriving effective low-energy theories of electronic interactions at graphene edges. Our method is applicable to general edges of honeycomb lattices (zigzag, chiral, and even disordered) as long as localized low-energy states (edge states) are present. The central characteristic of the effecti…
In this paper, core-shell semiconductor quantum dots (QDs) CdSeS/ZnS with emission at 490 nm and 450 nm were investigated for their use in luminescent down-shifting (LDS) layers. Luminescent quantum yield (LQY) of the QDs measurements in solution proposed that they were suitable candidates for inclusion in LDS layers.…
Under high pressure high-temperature conditions, namely 8.5(8) GPa and 1373(150) K, γ′-Fe4N (Pm3¯m) is transformed into ϵ-type Fe3N0.75. At ambient temperature, the onset of the transition is observed above 17 GPa by in situ X-ray diffraction data. The nitrogen content of Fe3N0.77(4) deduced on the basis of the observ…
Abstract A range of triphenylene and phthalocyanine‐based discotic liquid crystals (DLCs) can be aligned within micrometer‐scale channels formed from SU8 patterned on silicon or glass surfaces. The channels can be filled with the DLC in its isotropic phase using capillary action. Alignment occurs spontaneously as the…
O-Glycosylation of collagen is a unique type of posttranslational modifications (PTMs) involving the attachment of galactose (Gal) or glucose-galactose (Glc-Gal) moieties to hydroxylysine (HyK). Also, hydroxyproline (HyP) result from the posttranslational hydroxylation of some proline residues in collagen. Here, LC-MS…
Nonagglomerating polylactide (PLA) particles with various interaction forces were designed by covalent photografting. PLA particles were surface grafted with hydrophilic poly(acrylic acid) (PAA) or poly(acrylamide) (PAAm), and force interactions were determined using colloidal probe atomic force microscopy. Long-range…
Based on the high pH-sensing ability of [meso-tetrakis(pentafluorophenyl) porpholactonato]-platinum(II), we investigated the influence of the metal ( M = Zn ( II ), Ni ( II ), Cu ( II ), Pd ( II ), Ag ( II ), Pt ( II )), the aryl group ( Ar = C 6 H 5 , C 6 F 5 ), and the presence of a β- NO 2 group on the pH sensing r…
Solution deposition is widely used for the fabrication of lead zirconate titanate (PZT) thin films on platinized silicon substrates. However, phase and texture evolution during the crystallization process is not well understood, particularly due to the difficulty in tracking changes in the thin films in situ during he…
Pressure-induced structural aspects of ZnS-type ( B 3) to NaCl-type ( B 1) structure in XC (X = Si, Ge, Sn and Pt) compounds are presented. An effective interionic interaction potential with long-range Coulomb, van der Waals (vdW) interaction and the short-range repulsive interaction up to second-neighbor ions within…