Materials Literature
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The challenge for structural biology is to understand atomic-level macromolecular motions during enzymatic reaction. X-ray crystallography can reveal high resolution structures; however, one perceived limitation is that it reveals only static views. Here we use time-dependent soak-trigger-freeze X-ray crystallography,…
The economic development of any region, state or country, depends not only on its natural re‐ sources and productive activities, but also on the infrastructure that account for the exploita‐ tion, processing and marketing of goods. Irrigation systems, roads, bridges, airports, maritime, land and air transport, school…
Red ox power! DFT calculations have been used to analyze the adsorption energy of gold on high-valent doped CaO in terms of iono-covalent, redox, and Coulomb contributions (see picture). Surprisingly, the dominant energy contribution originates from redox processes between the dopant and the adsorbate Au, not from the…
We report the syntheses and characterizations, in the solid state and in solution, of three new cyclic polyoxothiomolybdates self-assembled around 2,5-dimethylterephthalate (DMT) and 2,5-bis(trifluoromethyl)terephthalate (DFMT) ligands, namely [Mo12DMT](2-), [Mo12DFMT](2-) and [Mo16DFMT](2-). A series of these two Mo1…
The synthesis and application of a dibenzyl-functionalized bispidine, in combination with 1-(3,5-bis(trifluoromethyl)phenyl)-3-cyclohexylthiourea (TU) co-catalyst, has been demonstrated to be an excellent catalyst for the controlled ring-opening polymerisation (ROP) of lactide and cyclic carbonate monomers. Notably, t…
Single-phase GIS-NaP1 zeolite particles were hydrothermally synthesized from inorganic precursor solutions. The as-synthesized GIS-NaP1 zeolite particles have spherical morphology similar to Myrica rubra fruit. These knobby surfaced GIS-NaP1 zeolite spheres of size 0.8 to 1.8 μm were composed of crystalline nanopartic…
Increasing the temperature variation rate is a useful method for enhancing the response of pyroelectric devices. A three-dimensional ZnO film was fabricated by the aerosol deposition (AD) rapid process using the shadow mask method, which induces lateral temperature gradients on the sidewalls of the responsive element,…
Lanthanide ions, Ln(III), are of interest in the treatment of bone density disorders because they are found to accumulate preferentially in bone (in vivo), have a stimulatory effect on bone formation, and exhibit an inhibitory effect on bone degradation (in vitro), altering the homeostasis of the bone cycle. In an eff…
Surface properties, dispersion state, and sorption behavior of carbon-based nanomaterials will change after being released into the environment. To study these processes, five different scenarios were considered to probe the impact of changes in surface properties of dispersed fullerenes (nC60) on their sorption poten…
Although polymeric nanoparticles (NPs) and dendrimers represent some of the most promising cancer-targeting nanocarriers, each of them has drawbacks such as limited tissue diffusivity/tumor penetration and rapid in vivo elimination, respectively. To address these issues, we have designed a multiscale hybrid NP system…
Manganese–zinc ferrites were obtained through combined coprecipitation and sol–gel autocombustion methods. The effect of the precursor used in the sol–gel autocombustion synthesis on the ferrite’s structural and catalytic properties was examined. The ferrite powders were characterized by XRD, BET, SEM, TG/DTA, and TPR…
We study the influence of quantum fluctuations on the electron self-energy in the normal state of iron pnictide superconductors using a five-orbital tight-binding model with generalized Hubbard on-site interactions. Within a one-loop treatment, we find that an overdamped collective mode develops at low frequency in ch…
The optical response of metallic nanoparticle arrays is dominated by localized surface plasmon excitations and is the sum of individual particle contributions modified by interparticle coupling that depends on specific array geometry. We demonstrate a so far unexplored distinct oscillatory behavior of the plasmon peak…
The gold nanocrystals supported over CeO 2 -containing mixed-metal oxides were synthesized by a reduction–deposition approach followed by calcination. The zerovalent Au 0 was obtained from the reduction of Au 3+ ion by the hydrolysis of sucrose in an aqueous solution. The thermal post-treatment led to supported gold c…
Here we demonstrate, for the first time, the fabrication of Au nanostructures on polyaniline (PANI) membrane surfaces for surface enhanced Raman spectroscopy (SERS) applications, through a direct chemical reduction by PANI. Introduction of acids into the HAuCl(4) solution leads to homogeneous Au structures on the PANI…
Long-range electron tunneling is a fundamental process that is critical to the performance of oxide materials in microelectronics, energy generation, and photocatalysis, but extremely challenging to probe experimentally. Here we devise a computational approach that allows one to probe the mechanism and calculate the r…
Glasses in the ternary system (70 - x)NaPO(3)-30WO(3)-xBi(2)O(3), with x = 0-30 mol %, were prepared by the conventional melt-quenching technique. X-ray diffraction (XRD) measurements were performed to confirm the noncrystalline nature of the samples. The influence of the Bi(2)O(3) on the thermal, structural, and opti…
Acrylated epoxidized soybean oil was chemically grafted with difunctional flame retardants carrying phosphorus, double bonds or biphenyl groups, and then copolymerized with styrene to produce bio-foams with high mechanical properties and intrinsic flame resistance. Owing to the introduction of rigid comonomer, phospho…
A series of mono-functionalized 3-pyrrolyl boron-dipyrromethenes containing functional groups such as bromo, formyl, cyano, nitro and trimethylsilylacetylene groups at the α-position of the uncoordinated pyrrole group were synthesized. Further to show the use of functionalized 3-pyrrolyl BODIPY, we treated α-bromo BOD…
The influence of the addition of 1 mol% Tm 2 O 3 on the nanocrystallization of LaF 3 in a glass of composition 55 SiO 2 –20 Al 2 O 3 –15 Na 2 O –10 LaF 3 (mol%) has been studied. Tm 2 O 3 affects the phase separation in the glass and delays the onset of crystallization with respect to the undoped glass. Additionally,…