Materials Literature
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Pitting corrosion is associated with the distribution and composition of intermetallic (IM) particles. However, quantitatively studying the relationship between alloy corrosion and IM particle property remains a challenging topic. In this paper, a computational method is presented for IM particle characterisation and…
A simplified reaction–diffusion model is proposed to show the origins of inefficient charge transport in dye-sensitized solar cells (DSCs) based on bulky complex redox shuttles. In this model, diffusion length of the oxidized species in electrolyte solution is defined and assumed to depend on the average density of th…
Using the self-consistent charge density functional tight binding (SCC-DFTB) method, C60 molecules physisorbed on an α-quartz slab are shown to display a first hyperpolarizability, whereas, owing to their symmetry, both the α-quartz slab and C60 molecule have no first hyperpolarizabilities. A larger first hyperpolariz…
Cancer has become the leading cause of death worldwide; early diagnosis and treatment of cancers is critical for the survival of the patients. The concentration of cancer markers in easy-to-access biological fluids can provide great assistance in screening for occult primary cancers, distinguishing malignant from beni…
The morphology of stable spherical Ni(0) nanoparticles can be modified to obtain flower-like Ni(0) arrangements by reheating them, retaining their high crystallinity and without oxidation of the nanoparticles.
The work is focused on the dependence of the Raman scattering properties of single GaN nanowires on their size and aspect ratio. We found that, the Raman scattering by optical phonons of hexagonal GaN nanowires evolves with decreasing nanowire diameter. Below 100 nm diameter, strongly polarized Raman scattering is det…
Abstract Density functional calculations along with in situ X‐ray absorption spectroscopy data show that AuPd alloys form unique potential‐controlled surface structures during the hydrogen evolution. We find evidence for surface segregations preferring a gold surface if the surface is free of chemisorbed species, whil…
OBJECTIVE: To evaluate the impact of a device-mediated modification of the injection pressure profile on iodinated contrast volumes during coronary angiography and percutaneous coronary intervention (PCI). BACKGROUND: The development of iodinated contrast-induced acute kidney injury (AKI) is associated with significan…
Cobalt nanoparticles have been prepared by the chemical reduction of [Co(NH3)6]Cl3, [Co(NH3)5Cl]Cl2, and [Co(NH3)5ONO]Cl2 in alcoholic solution. The reaction of these complexes with hydrazine as a reducing agent were carried out at 70 °C and pH = 10–12. The metallic nanoparticles were characterized by using X-ray powd…
A pyrazolyl urea ligand adopts two possible conformations with the urea NH groups directed either outward or inward. Metal coordination enforces the outward conformation resulting in either anion complexation or self-association and hence extended supramolecular assemblies including a hexameric barrel that persists in…
The compound KTi(SO${}_{4}$)${}_{2}\ifmmode\cdot\else\textperiodcentered\fi{}$H${}_{2}$O was recently reported as a quasi-one-dimensional spin-1/2 compound with competing antiferromagnetic nearest-neighbor exchange ${J}_{1}$ and next-nearest-neighbor exchange ${J}_{2}$ along the chain with a frustration ratio $\ensure…
Formation of form I and form II polymorphs and their phase transitions were investigated for poly(3-dodecylthiophene) (P3DDT) films with molecular weights of 5300, 14 800, and 59 000 respectively, using temperature-dependent FTIR spectroscopy in conjugation with X-ray diffraction and differential scanning calorimetry.…
We demonstrate the fabrication of Bi21Pt35Pd44 alloy porous nanoplates by a galvanic replacement method using Bi65Pt35 bimetallic nanoplates as the sacrificial template. Bi65Pt35 nanoplates, prepared by reduction with diol (1,2-hexadecanediol) at low temperature (100 °C), were converted to the porous nanoplate structu…
In this work, we present measurements of the dynamics of photoexcited carriers in GaInN/GaN quantum wells (QWs) grown on ammonothermal GaN, especially thermalization and recombination rates. Emission properties were measured by time-resolved photoluminescence (PL) and electroluminescence spectroscopy. Due to the use o…
High Resolution Image Download MS PowerPoint Slide Solvothermal reactions of the lower-rim functionalized diacid calix[4]arene 25,27-bis(methoxycarboxylic, acid)-26,28-dihydroxy-4- tert- butylcalix[4]arene, ( L H 2 ) with Zn(NO 3 ) 2 ·6H 2 O and the dipyridyl ligands 4,4′-bipyridyl (4,4′-bipy), 12-di(4-pyridyl)ethylen…
The interaction between individual plasmonic nanoparticles plays a crucial role in tuning and shaping the surface plasmon resonances of a composite structure. Here, we demonstrate that the detailed character of the coupling between plasmonic structures can be captured by a modified "circuit" model. This approach is ge…
We present a simple approach to calculate the thermodynamic properties of single Kondo impurities including orbital degeneracy and crystal field effects (CFE) by extending a previous proposal by Schotte and Schotte (1975 Phys. Lett. 55A 38). Comparison with exact solutions for the specific heat of a quartet ground sta…
We consider the Jeffreys-type equation as the foundation in three different models of mass transfer, namely, the Jeffreys-type and two-phase models and the D(1) approximation to the linear Boltzmann equation. We study two classic (1+1)-dimensional problems in the framework of each model. The first problem is the trans…
A theoretical study based on the use of admittance loci method in the design of surface plasmon resonance (SPR) based structure using Ag-Au bimetallic alloy film of different alloy fractions and nanoparticle sizes has been reported along with some interesting performance related simulated results at 633 nm wavelength.…
Abstract In this study, a salt‐leaching using powder (SLUP) scaffold with penetrated macropores was proposed to enhance cell proliferation. A SLUP scaffold is a salt‐leaching scaffold with an arbitrary pore configuration. Although SLUP scaffolds have several advantage over traditional salt‐leaching scaffolds, the cell…