Materials Literature
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The study aim was to investigate how gold nanoparticles (NPs) of different sizes (20 and 100 nm) influence primary hepatocytes, the hepatocyte cell line C3A and macrophage cytokine responses when dispersed in lung or blood relevant fluids. Gold Au NPs induced cytotoxicity in primary hepatocytes at the highest dose of…
In this work, we extend the previous effective medium formulation on phonon transport within a polycrystal to more general cases by further considering partially specular phonon transmission across grain boundaries, in addition to the diffuse grain-boundary scattering of phonons. Such specular phonon transmission norm…
Thermomechanical relaxation events and different water states in cottonseed protein bioplastics are presented whilst investigating the effects of aldehyde cross-linking agents. Thermomechanical relaxation of cottonseed protein bioplastics associated with protein denaturation, moisture absorption and broad glass transi…
The effect of cadmium selenide quantum dots (CdSe QDs) on the dielectric relaxation and material constants of a ferroelectric liquid crystal (FLC) has been investigated. Along with the characteristic Goldstone mode, a new relaxation mode has been induced in the FLC material due to the presence of CdSe QDs. This new re…
ABSTRACT Tris(2‐hydroxyethyl) isocyanurate (THEIC) was used as charring agent and combined with ammonium polyphosphate (APP) to form an intumescent flame retardant (IFR) for polypropylene (PP). The flame retardancy and combustion performance of PP/IFR composite was tested by limiting oxygen index (LOI), UL‐94 vertical…
The present study is aimed at evaluating the use of plant-based polymers and fibres for the production of sustainable biocomposites. For the first time, plasticiser/solvent-free hemp fibre-reinforced wheat gluten and hemp-gliadin and glutenin composites were obtained by compression moulding at different temperatures.…
Photodegradable and biocompatible nano-indoxacarb was prepared successfully by encapsulation of indoxacarb with poly(citric acid)-poly(ethylene glycol)-poly(citric acid) (PCA-PEG-PCA) ABA type linear-dendritic copolymers both with (nano-IND/TiO2) and without (nano-IND) TiO2 nanoparticles via supramolecular interaction…
Poly[2-methoxy-5(2′-ethylhexoxy)- p -phenylenevinylene] (MEH-PPV) has been for the first time prepared and fully characterized in enantiopure ( R ) form. If the polymer molecular weight is sufficiently low, ( R )-MEH-PPV assumes a helical supramolecular structure in the solution aggregates, with consequences on the te…
Graphene substrates have recently been found to generate Raman enhancement. Systematic studies using different Raman probes have been implemented, but one of the most commonly used Raman probes, rhodamine 6G (R6G), has yielded controversial results for the enhancement effect on graphene. Indeed, the Raman enhancement…
In this article, we report on the liquid-crystalline properties of two series of halogen-terminated cyanobiphenyl-based materials. Unlike other rod-shaped, halogen-terminated materials reported, these materials do not exhibit the smectic A phase and instead only exhibit nematic liquid-crystal mesomorphism. Comparisons…
Al 3+ substituted nanoparticles i.e., FeAl x Fe 2-x O 4 (x = 0.2, 0.4, 0.6) have been synthesized by the chemical co precipitation method. Crystalline phase of synthesized particles was confirmed by XRD pattern. Particle size of as obtained samples was found in the range of 24–34 nm. Dielectric loss (tan δ, dielectric…
The reactions from codeposition of laser-ablated chromium atoms with carbon dioxide in excess neon are studied by infrared absorption spectroscopy. The species formed are identified by the effects of isotopic substitution on their infrared spectra. Density functional calculations are performed to support the spectral…
We report a study of the I-V characteristics of 2.5–5.4 nm epitaxial La1−xSrxMnO3 (x = 0.33 and 0.5) and La0.7Ca0.3MnO3 thin films. While La0.67Sr0.33MnO3 films exhibit linear conduction over the entire temperature and magnetic field ranges investigated, we observe a strong correlation between the linearity of the I-V…
Biomimetic replicas of superhydrophobic lotus and taro leaf surfaces can be made using polydimethylsiloxane. These replicas faithfully reproduce the microstructures of the leaves’ surface and can be analyzed using contact angle goniometry, self-cleaning experiments, and optical microscopy. These simple and adaptable e…
Based on atomistic simulations, the elastic moduli and vibration behaviors of fivefold twinned copper nanowires are investigated in this paper. Simulation results show that the elastic (i.e., Young's and shear) moduli exhibit size dependence due to the surface effect. The effective Young's modulus is found to decrease…
The Mg(NH2)2–2LiH composite is a promising on-board hydrogen storage material due to its high reversible hydrogen capacity and suitable thermodynamic properties. However, the severe kinetic barrier inhibits its low temperature operation. In the present work, the additive effects of lithium halides on the Mg(NH2)2–2LiH…
We demonstrate boundary spin polarization at the surface of a Cr 2 O 3 single crystal using spin-polarized low-energy electron microscopy (SPLEEM), complementing prior spin polarized photoemission, spin polarized inverse photoemission, and x-ray magnetic circular dichroism photoemission electron microscopy measurement…
The effect of nanohydroxyapatite (HA) coating on corrosion resistance of 316L stainless steel was investigated. The stainless steel samples were pretreated in different volume concentrations of H 2 SO 4 solution and were electrophoretically coated for various coating time spans and voltages. The coated samples were si…
A catalytic redox reaction involving N2O and CO on size-selected copper cluster anions, Cun(-), was investigated in the gas phase using a guided ion-beam tandem mass spectrometer. When Cun(-) is exposed to a mixture of N2O and CO, CunO(-) is produced via the decomposition of N2O. Increase of the CO partial pressure re…
We study the impact of electron-phonon interactions on the many-body instabilities of electrons on the honeycomb lattice and their interplay with repulsive local and nonlocal Coulomb interactions at charge neutrality. To that end, we consider in-plane optical phonon modes with wave vectors close to the $\ensuremath{\G…