Materials Literature
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The Zn inactive class of glyoxalase I (Glo1) metalloenzymes are typically homodimeric with two metal-dependent active sites. While the two active sites share identical amino acid composition, this class of enzyme is optimally active with only one metal per homodimer. We have determined the X-ray crystal structure of G…
Abstract We hypothesized that a nitrogen transportation process mediated by cyanide (CN) ions causes the observed increase in growth rate by carbon addition in the Na‐flux growth of GaN. Using first‐principles calculations, we investigated the probability of the nitrogen transportation process from the viewpoint of ch…
A novel electrochemical sensor was fabricated by immobilizing Cadmium Selenide Quantum Dots (CdSe QDs)-Graphene Oxide (GO) nanocomposite on a paraffin wax impregnated graphite electrode (PIGE) and was used for the simultaneous determination of adenine and guanine. The CdSe QDs-GO nanocomposite was prepared by ultrason…
Kinetic studies of mixed (steam and dry) reforming of methane on Ni/La/Al2O3 and Ni/La-Co (1, 3 wt%)/Al2O3 catalysts were performed in an atmospheric fixed-bed reactor. Kinetic parameters for the mixed reforming over these catalysts were obtained under reaction conditions free from heat and mass transfer limitations.…
The present work was to carry out the development of high performance Ni-based catalyst for Steam-CO2 reforming of methane (SCR) which is suitable for Fischer-Tropsch synthesis of GTL- FPSO (floating, production, storage and offloading) process. The bimetallic Ni-Cr catalysts were prepared by co-impregnation method. T…
Macromolecular brushes with thermo-sensitive coil backbones and pendant poly(γ-benzyl- l -glutamate) side chains were synthesized by reversible addition–fragmentation chain transfer and ring-opening polymerization. Functionalization and self-assembly of the macromolecules were investigated.
Well dispersed platinum nanoparticles (∼2 nm) on carbon nano-onions are accessible using a simple and scalable one-step batch method.
The sorption of selected hydrophilic pH-sensitive dyes (bromophenol blue, bromothymol blue, bromocresol purple, alizarin red, methyl orange, congo red, rhodamine 6G) on films of anodized aluminium oxide (AAO) was investigated in this study. Depth and pore structure of the AAO channels were adjusted by changing electro…
Ultrasound contrast agent (UCA) suspensions contain encapsulated microbubbles with radii ranging from 1 to 10 micrometers. The bubbles oscillate to the driving ultrasound pulse generating harmonics of the driving ultrasound frequency. This feature allows for the discrimination of non-linear bubble echoes from linear t…
Temperature effect on the elastic constants and anisotropy of MgO and CaO are performed via first-principles approach combing the quasistatic approximation to elasticity and the quasiharmonic phonon approximation to thermal expansion. Generalized stacking fault energy curves at different temperature are also computed…
In this work, a new way to fabricate nanoporous TiO2 photoanode by flash light is demonstrated. TiO2 nanoparticles are sintered on FTO glass by flash light irradiation at room temperature in ambient condition, which is dramatically simple, ultrahigh speed and one-shot large area fabrication process compared to a conve…
Nanoparticles (NPs) are typically materials with dimensions less than 100 nm. In this work, silicon nanoparticles (SiNPs) were produced by electrical discharge machining of boron doped Si ingot (resistivity 0.01 Ω cm−1). The “top-down” process used in this work involved vaporizing bulk Si material with spark erosion a…
Single-wall carbon nanotubes (SWNTs) have attractive biochemical properties such as strong cell adhesion and protein absorption, which are very useful for a cell cultivation scaffold. In this study, collagen/SWNT-COOHs nanocomposite films composed of regenerated fish collagen and SWNT-COOHs (0, 0.5, 1.0 and 2.0 weight…
Abstract The control of grain structure, which develops during solidification processes in investment casting of nozzle guide vanes (NGVs), is a key issue for optimization of their mechanical properties. The main objective of this part of the work was to develop a simulation tool for predicting grain structure in the…
A novel polymer of PBDP-IID was synthesized and its HOMO descends to −5.44 eV. Bulk heterojunction solar cells made from PBDP-IID exhibited a high V oc of 0.95 V, which shows the highest value among the PSCs based on the narrow bandgap polymer donors with E g < 1.6 eV.
Indene-C70 derivatives were synthesized, including indene-C70 mono-adduct (IC70MA), indene-C70 bis-adduct (IC70BA) and indene-C70 tris-adduct (IC70TA). All as-prepared fullerene adducts are in fact a mixture of isomers. The IC70BA mixture was further separated by high-performance liquid chromatography (HPLC) and two d…
The influence of different charge carrier concentrations on the recombination dynamics between oppositely charged polarons is numerically investigated using a modified version of the Su-Schrieffer-Heeger (SSH) model that includes an external electric field and electron-electron interactions. Our findings show that the…
The atomic structural stability and electronic properties of Li n Sn 4 –carbon nanotube (CNT) and Li n Sn 4 –graphene nanocomposites were studied by first principles calculations.
Ten silver(I) coordination polymers {[Ag2(PTMP)2(L1)2]·3H2O}∞ (1), {[Ag2(PTMP)2(L2)]·7H2O}∞ (2), {[Ag2(PTMP)2(L3)]·2CH3OH}∞ (3), {[Ag2(PTMP)2(L4)]·5H2O}∞ (4), {[Ag(PTMP)]·0.5(L5)·2H2O}∞ (5), {[Ag(PTMP)(L6)0.5]·H2O}∞ (6), {[Ag3(PTMP)3(L7)]·2.25H2O}∞ (7), [Ag(PTMP)(NO3)]∞ (8), {[Ag(PTMP)]·(BF4)}∞ (9) and {[Ag(PTMP)]·(CF…
/CS was evaluated in aqueous media using sialic acid (SA) as the target molecule in the presence of different monosaccharides and anionic biomolecules as interferents. A significant fluorescence quenching of hybrid NPs was observed in aqueous solutions of SA with interferents, while no significant quenching effect was…