Materials Literature
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The reaction mechanism of the Mitochondrial Processing Peptidase enzyme (MPP) was investigated by using hybrid density functional theory. This enzyme removes the NH(2)-terminal targeting signals of nuclear-encoded mitochondrial protein precursors in the mitochondrial matrix. The catalytic process was studied using a m…
The photophysics of 2,5-bis(5-tert-butyl-benzoxazol-2-yl)thiophene (BBT) were investigated for assessing its limitations for use as a universal fluorophore and as a viable sensor for both polymeric and solution studies. This is of importance given the limitations of currently used materials. BBT's steady-state and tim…
The synthesis and energy-transfer properties of a series of oligo(p-phenylene ethynylene)-BODIPY (OPEB) cassettes are reported. A series of oligo(p-phenylene ethynylene)s (OPEs) with different conjugated chain lengths as energy donor subunit in the energy-transfer system were capped at both ends with BODIPY chromophor…
Four new neutral copper-azido polymers [Cu(4)(N(3))(8)(Me-hmpz)(2)](n) (1), [Cu(4)(N(3))(8)(men)(2)](n) (2), [Cu(5)(N(3))(10)(N,N-dmen)(2)](n) (3) and [Cu(5)(N(3))(10)(N,N'-dmen)(5)](n) (4) [Me-hmpz = 1-methylhomopiperazine; men = N-methylethylenediamine; N,N-dmen = N,N-dimethylethylenediamine and N,N'-dmen = N,N'-dim…
The clustering of helium in bcc (body centered cubic) iron and the growth of a helium bubble are simulated at the atomistic level for the helium-rich vacancy-poor condition. It is shown that a ½ <linear span>111<linear span> dislocation loop is formed as a sequential collection of <linear span>111<linear span> crowdio…
A ternary thin film electrode was created by coating manganese oxide onto a network composed of single-walled carbon nanotubes and single-walled carbon nanohorns. The electrode exhibited a porous structure, which is a promising architecture for supercapacitors applications. The maximum specific capacitances of 357 F/g…
Zinc oxide nanoparticles (NPs) with the size of ∼100 nm were prepared via a facile biomineralization process in the template of silk fibroin (SF) peptide at room temperature. These ZnO NPs have shown the remarkable behavior of low toxicity to gram-positive bacteria (Staphylococcus aureus, Staphylococcus agalactiae), g…
Abstract This research work has concerned a study on relationship between structure and properties of maleated thermoplastic starch (MTPS)/plasticized poly(lactic acid) (PLA) blend. The aim of this work is to investigate the effects of blending time, temperature, and blend ratio on mechanical, rheological, and thermal…
Many materials which could cause a real threat of a catastrophe due to fatigue, exceeding stress limits or plastic strain have magnetic properties that could affect the local magnetic field. Though active magnetic methods of condition monitoring are quite well-known and widely applied however, passive techniques which…
In this study, we investigated interfacial charge transfer dynamics in water-soluble perylenediimide (WS-PDI) dye sensitized p-type semiconductor NiO nanoparticle films to better understand how molecular interactions influence photoconversion processes involved in solar cells by means of ensemble-averaged and single-m…
The reactions of octacyanometallates [M(CN) 8 ] 3- (M = Mo, W) and lanthanide ions Ln 3+ (Ln = Pr, Sm, Eu) through the solution diffusion method in the presence of chelated aromatic ligands 1,10-phenanthroline (phen) or 3,4,7,8-tetramethyl-1,10-phenanthroline (tmphen) have yielded five new [M(CN) 8 ] 3– -based bimetal…
We derive an expression for the nonequilibrium segregation coefficient of colloidal particles near a moving solid-liquid interface. The resulting kinetic phase diagram has applications for the rapid solidification of clay soils, gels, and related colloidal systems. We use it to explain the formation of bandlike defect…
iPr tips the scales: Simple introduction of an iPr group to the Cp ligand in titanocene alkyne complexes of the type [Cp′2Ti(η2-Me3SiC2SiMe3)] (Cp′= cyclopentadienyl) gives a highly active catalyst for dimethylamine borane dehydrogenation. In this communication, a detailed study of the scope of this complex and the re…
A sufficient cell source and minimal invasiveness in obtaining human adipose stromal cells (hASCs) hold great promise for their utilization in wound repair. However, little is known about how cell-residing microenvironments regulate the cellular response. In this study we explored the effects of polycaprolactone (PCL)…
A multitechnique physicochemical comparative investigation involving TDDFT theoretical calculations, steady-state and time-resolved electronic absorption spectra, and electrochemical and photoelectrochemical investigations was carried out on a family of push–pull porphyrinic sensitizers ([5-(4′-carboxy-phenylethynyl)-…
The present work deals with the preparation of magnetic mesoporous nanocomposites with potential application for cancer treatment. The supramolecular mechanisms that govern the incorporation of γ-Fe2O3 nanoparticles into mesoporous silica spheres have been deeply analyzed. The modification of γ-Fe2O3 nanoparticles dur…
We have determined the growth mode of graphene on SiC(0001) and SiC(0001¯) using ultrathin, isotopically labeled Si(13)C "marker layers" grown epitaxially on the Si(12)C surfaces. Few-layer graphene overlayers were formed via thermal decomposition at elevated temperature. For both surface terminations (Si face and C f…
Considerable recent research interest has focused on mapping the structural phase diagrams of anisotropic VO(2) nanobeams as model systems for elucidating single-domain behavior within strongly correlated electronic materials, to examine in particular the coupling of lattice and orbital degrees of freedom. Nevertheles…
The present work reports the fabrication and detailed electrical properties of n-TiO 2 /p-ZnO heterojunction diode. We have determined the electrical characteristics of the device such as current–voltage ( I – V ) and capacitance–voltage ( C – V ) at room temperature. This structure showed a good rectifying behavior w…
Photoinduced effects of GeSe 2 and Ge 2 Se 3 films illuminated in air and in vacuum are investigated by in situ transmission spectra measurements. Both compositions exhibit photobleaching (PB) when exposed to bandgap laser for a prolonged time in air. By comparing with the photoinduced effects in vacuum, we conclude t…