Materials Literature
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Manipulation of particles at the surface of a droplet can lead to the formation of structures with heterogeneous surfaces, including patchy colloidal capsules or patchy particles. Here, we study the assembly and rearrangement of microparticles confined at the surface of oil droplets. These processes are driven by elec…
The mode-splitting phenomenon within finite-size, mini-scale high-index-contrast gratings (HCGs) has been investigated theoretically and experimentally. The high-Q resonance splits into a series of in-plane modes due to the confinement of boundaries but can still survive even on a mini-scale footprint. Q factors up to…
Emerging treatment paradigms like targeting the tumor microenvironment and/or dosing as part of a metronomic regimen are anticipated to produce better outcomes in ovarian cancer, but current drug delivery systems are lacking. We have designed and evaluated paclitaxel (PTX) and rapamycin (RAP) micellar systems that can…
[EtZnP(SiMe 3 ) 2 ] 3 has been identified as a competent intermediate for the growth of stoichiometric α-Zn 3 P 2 nanocrystals from Zn-rich zinc phosphide seeds as determined by powder X-ray diffraction, solid-state nuclear magnetic resonance (NMR) spectroscopy, and transmission electron microscopy analysis. Solution-…
Abstract An asymmetric supercapacitor ( ASC ) was assembled by using an activated carbon as positive electrode and WO 3 nanowire as negative electrode, and its electrical performances were tested in voltage windows ranging from 0 to 1.5 V. A high specific capacitance of 51 F•g −1 could be achieved at the current densi…
The applications of poly (lactide-co-glycolide) acid (PLGA) for coating or fabricating polymeric biodegradable stents (BDSs) have drawn more attention. The fluid shear stress has been proved to affect the in vitro degradation process of PLGA membranes. During the maintenance, BDSs could be suffered different patterns…
Oleic acid-coated Eu3+-doped NaYF4 nanorods were hydrothermally synthesized using a modified liquid-solid-solution synthetic strategy. The Eu3+-doped NaYF4 nanorods constituted a downshifting material (DM). They were then spin-coated onto the front surface of a screen-printed monocrystalline silicon solar cell (SMSSC)…
This article presents a methodology based on genetic algorithms (GA) optimization with a three-dimensional numerical solution to the diffusion model obtained by using the finite volume method (FVM) for determining the effective moisture diffusivity in lumber. The objective or error function between measured and simula…
Catalysts based on pillared clays with Zr and/or Al and Ce–Zr and/or Al polycations have been synthesized from a Tunisian bentonite and tested in catalytic oxidation of phenol at 298 K. The Zr-pillared clay showed higher activity than the Al-one in phenol oxidation. Mixed Zr–Al pillars lead to an enhancement of the ca…
Thermoelectric devices are heat engines, which operate as generators or refrigerators using the conduction electrons as a working fluid. The thermoelectric heat-to-work conversion efficiency has always been typically quite low, but much effort continues to be devoted to the design of new materials boasting improved tr…
Density functional theory is employed to demonstrate how ammonia-derived etchant radicals (H, NH, and NH 2 ) can be used to promote particular ( n, m ) chirality single-walled carbon nanotube (SWCNT) caps during chemical vapor deposition (CVD) growth. We reveal that the chemical reactivity of these etchant radical spe…
In this work, proton exchange membranes (PEMs) based on chitosan (CS) and cellulose (CL) have been prepared using a solution-casting technique with sulfosuccinic acid (SSA) as an ionic cross linker. The characteristics of these CS-CL biocomposite membranes were studied using scanning electron microscopy (SEM), Fourier…
A reorientation of cholesteric liquid crystal with a large helix pitch induced by the electrically controlled ionic modification of the surface anchoring has been studied. In initial state, the cholesteric helix is untwisted completely owing to the normal surface anchoring specified by the cations adsorbed at the subs…
Using molecular dynamics (MD) simulations, the influence of the vacancy defects on the mechanical properties of gallium nitride (GaN) nanosheets is investigated. Two types of defective nanosheets are studied. In one of them, only one atom is removed at the vacancies and in the other, the number of removed atoms is not…
Spider aciniform (wrapping) silk is a remarkable fibrillar biomaterial with outstanding mechanical properties. It is a modular protein consisting, in Argiope trifasciata, of a core repetitive domain of 200 amino acid units (W units). In solution, the W units comprise a globular folded core, with five α-helices, and di…
Piezoelectric ceramics Pb(Ni 1/3 Nb 2/3 )O 3 –Pb(Mg 1/2 W 1/2 )O 3 –Pb(Sb 1/2 Nb 1/2 )O 3 –Pb(Zr 0.39 Ti 0.61 )O 3 with Ba(Cu 1/2 W 1/2 )O 3 sintering aids were fabricated using economical industrial oxide powders and their piezoelectric, dielectric, and ferroelectric properties were investigated in order to develop l…
The mechanism of the room temperature (RT) ferromagnetism in C-doped ZnO and the trend that the higher the C concentration, the smaller the saturation magnetic moment $({M}_{\mathrm{s}})$, have remained controversial and puzzling for a long time. Using density-functional calculations with hybrid functional, we qualita…
This study aimed to investigate the optimal electroless silver plating conditions on poly (ethylene terephthalate) (PET) to develop electromagnetic shielding fabrics by comparison with two different activation agents (silver nitrate mixture and palladium chloride mixture). The add-on yield and thickness of plated fabr…
The Schottky Barrier Heights (SBH) of metal layers on top of monolayer hexagonal X-nitrides (X = B, Al, Ga, and h-XN) are calculated using supercells and density functional theory so as to understand the chemical trends of contact formation on graphene and the 2D layered semiconductors such as the transition metal dic…
A novel three-dimensional binary structure was successfully synthesized with the assist of soluble long-chain tetraalkylammonium carboxylate zinc salt by hydrothermal treatment. The unique binary structure consists of two different crystal structures in one individual, with the head being a layered basic zinc salt (LB…