Materials Literature
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In the present work protonic forms of layered n = 1, 3 Ruddlesden‐Popper oxides HLnTiO 4 and H 2 Ln 2 Ti 3 O 10 (Ln = La, Nd) were used as the starting point for soft chemistry synthesis of two series of perovskite‐like compounds by acid leaching and exfoliation, promoted by vanadyl sulfate. The last route leads to th…
TiO 2 nanoball films of nitrogen doping and no doping were prepared by anodic oxidation method. The nitrogen-doped samples exhibited significant enhanced absorption in visible light range, narrowing band gap from 3.2 eV to 2.8 eV and the smaller nanoball diameter size. The concentrations of methyl blue reduce to nearl…
Recent advances in synthesis, characterization and application of the selected conducting/semiconducting and redox-active oligomers and polymers of arylamines are reviewed. A brief historical background of the selected topics is given. The overview of the preparation, structure and properties of polyaniline, substitut…
Low dielectric constant of organic semiconductor materials gives rise to the high binding energy for photoinduced excitons, typically one order of magnitude higher than the thermal energy at room temperature [1]. This results in the relatively poor performance of organic solar cells (OSCs). A p-n junction interface is…
In this work, for the first time, size-controllable preparation of Pd nanoparticles assembled on graphene was realized through UV reduction by TiO2. Firstly, a hybrid nanocomposite of graphene/TiO2 (GT) was synthesized via a reported one-pot water-phase approach. It was interesting to find that when altering the addit…
Here we evaluated the inhibitory effects of bergenin analogues (2-10), prepared from naturally occurring bergenin, (1) on β-secretase (BACE1) activity. All the bergenin analogues that were analyzed inhibited BACE1 in a dose-dependent manner. 11-O-protocatechuoylbergenin (5) was the most potent inhibitor, with an IC₅₀…
Method for deposition of layers of the organic semiconductor polyaniline onto various kinds of supports was developed. The method enables control over the layer thickness and morphology. It is based on formation of a polymeric layer on the support in the course of a heterophase in situ polymerization of aniline. Proce…
A methodology to increase the device purpose yield of a KDP crystal is reported in this paper. The method is based on increasing the cross-section of the prismatic sector {100} of the growing KDP crystal at the expense of the unusable pyramidal cap portion by restricting the growth of the crystal up to a particular he…
Bismuth potassium titanate, (Bi1/2K1/2)TiO3 (BKT), ceramics were fabricated using KHCO3 as a starting material to control K amount precisely. Then, we fabricated (Bi1/2K(1+x)/2)TiO3 [BKT-10000x] ceramics to clarify an effect of poor or excess K ions in BKT ceramics for physical and electrical properties. The BKT-10000…
The hybrid structure of nanoparticle-decorated highly porous nanotubes combines the advantages of large specific surface areas of nanoparticles and anisotropic properties of highly porous nanotubes, which is desirable for many applications, including batteries, photoelectrochemical water splitting, and catalysis. Here…
We present the physical and biochemical effects of extracellular matrixes (ECMs) on HL-1 cardiomyocytes. ECMs play major roles in cell growth, adhesion and the maintenance of native cell functions. We investigated the effects of 6 different cell culture systems: 5 different ECM-treated surfaces (fibronectin, laminin,…
Inspired by the recent rapid development of graphene-based work, a reduced graphene oxide–vanadium phosphate (RGO–VPO) composite material is synthesized under visible light irradiation and its catalytic application is evaluated towards the direct formation of adipic acid.
Using molecular dynamics (MD) simulations and density functional theory (DFT) calculations, we systematically study the effective pair potential between two particles induced by unconnected monomers and by polymers at various polymer concentrations (above the overlap), particle sizes, and polymer–particle interactions…
The effect of additive on crystallization and mechanical properties of poly(lactic acid) (PLA) and poly(butylene succinate-co-adipate) (PBSA) blend was studied. PLA and PBSA were blended in a twin screw extruder, which incorporated poly(butylene adipate-co-terephthalate) (PBAT) as an additive in PLA/PBSA blend. The ra…
This paper presents the visible optical absorptivity enhancement of SiO2 thin films by Ti and Ag additive. SiO2 thin films were prepared on glass substrate by sol-gel technique. Methacryloxy propyl trimethoxysilane (MAPTMS), Titanium isopropoxide (TiP) and Silver nitrate were used as precursors. MAPTMS was dissolved i…
Parametric studies were conducted using a recent computational glass model to assess its ability to replicate the rate and extent of damage resulting from ballistic impact of borosilicate glass. Penetration and the position of the failure front were determined as a function of time in experiments using long and short…
We report on atomic force microscopy (AFM) and near-field scanning optical microscopy (NSOM) investigations of single crystals of the spin crossover complex {Fe(pyrazine)[Pt(CN)4]} across the first-order thermal spin transition. We demonstrate for the first time that the change in spin state can be probed with sub-mic…
We report a facile design method for constructing multiple-input and visible-output logic gates by combining signal-converting DNA machines and the gold nanoparticle aggregation-based foundational AND gate.
The aim of this study is to investigate the influence of sterilization process using γ -ray radiation on the melting behavior, crystallization behavior, thermal stability, and mechanical properties of nanohydroxyapatite/polyamide66 (nHA/PA66) scaffolds for bone tissue engineering. The results show that the melting tem…
Molecular dynamics simulations were conducted for the liquid wetting phenomena on a solid surface with a nanometer-scale slit pore using the Lennard-Jones potential. The objective was to investigate qualitatively how the width of the slit pore and the liquid–solid interactions influence the dynamic phenomena of the li…