Materials Literature
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Thermoresponsive PIPAAm-brush-grafted glass beads are prepared through siATRP and their physicochemical properties are characterized by micro-nitrogen analysis, XPS, and contact angle measurements. The amount of grafted PIPAAm on glass bead surfaces can be controlled by varying the ATRP reaction time, leading to a mod…
An adapted simulation method is used to systematically study grain boundary motion at velocities and driving forces across more than five orders of magnitude. This analysis reveals that grain boundary migration can occur in two modes, depending upon the temperature ($T$) and applied driving force ($P$). At low $P$ and…
Cl-BODIPYs, synthesized in high yields from dipyrrins under air- and moisture-free conditions, are extremely facile to substitution at boron compared to their corresponding F-BODIPYs, opening up a new route to BODIPYs functionalized at boron.
CO dissociation: Three most probable pathways to CO dissociation on the Fe (100) surface exist: a) direct, CO→C+O (-) and H-assisted b) H+CO↔HCO→CH+O (-) or c) CO+H↔COH→C+OH (-). Under high hydrogen pressure conditions and highly occupied surfaces the formation of HCO and subsequent dissociation to CH+O may at best co…
A continuum theory is formulated to describe dislocations within graphene. The bending modes and defect formation energies predicted by the theory are in good agreement with atomic scale total energy calculations. Dislocations induce out-of-plane buckling that screens their strain fields and enables the identification…
The Cr/SiO 2 system is investigated using periodic DFT. The model represents the amorphous character of the silica surface and allows the investigation of the effect of hydration on the Cr(VI) monomers. First, the geometry and energetics are discussed and compared with experimental data. The phase diagram plotted from…
In this paper, we propose a new method for an online electric parameters identification of an induction motor (IM). This method is carried out in the IM standstill configuration and uses adaptive linear neuron (ADALINE) networks. In order to simplify the identification process, the IM model is approximated by two firs…
Poly(ethylene imine) (PEI) has been adsorbed onto the surface of Laponite clay nanoparticles from aqueous solution at pH 9 in order to produce an efficient hybrid Pickering emulsifier. This facile protocol allows formation of stable sunflower oil-in-water Pickering emulsions via homogenization at 12,000 rpm for 2 min…
We investigated the effects of various fillers such as carbon nanotube (CNT), synthetic diamond (SND), boron nitride (BN), and copper (Cu) on the properties of polypropylene (PP) composites. The thermal conductivity and stability of PP were enhanced upon the addition of thermally conductive fillers. Young’s modulus in…
UNLABELLED: Nanomaterials have been widely evaluated for potential use as efficient delivery carriers for cancer diagnosis and therapy. To translate these nanomaterials to the clinic, their safety needs to be verified, particularly in terms of genotoxicity and cytotoxicity. We investigated changes in gene expression p…
Abstract Water‐blown rigid polyurethane foams from soy‐based polyol were prepared and their structure–property correlations investigated. Cellulose microfibers and nanoclays were added to the formulations to investigate their effect on morphology, mechanical, and thermal properties of polyurethane foams. Physical prop…
In this work, polyhedral oligosilsesquioxane (POSS) was functionalized by direct sulfonation, and the porous and ordered hierarchical nanostructure of polyaniline/sulfonated polyhedral oligosilsesquioxane (PANI/SOPS) was subsequently fabricated by in situ polymerization. The morphologies of the PANI/SOPS nanocomposite…
Ultrasmall monodisperse 2.3 nm CeO 2 nanoparticles have been synthesized by simple ammonia precipitation of cerium nitrate in a mixed glycol–water solvent and phase transferred into apolar solvents. Cerium oxide crystal surfaces were passivated with oleic acid (OA) by reflux under ambient pressure conditions. OA molec…
Gold nanoparticles (AuNPs) with excellent resistance to phagocytic uptake by macrophages are achieved via a facile mixed charged zwitterionic self-assembled monolayers (SAMs) surface modification. A series of AuNPs with good dispersity against high salinity, strong resistance to plasma adsorption, persistent stability…
Stretch MeH: Methane activated by adsorption on small platinum clusters is characterized by the vibrational fingerprint of the cluster complex. The CH bond activation is distributed over two bonds, which corresponds with a decreased activation of each of the bonds but should lead to improved control over the reactiv…
Citric acid is a widely used surface-modifying ligand for growth and processing of a variety of nanoparticles; however, the inability to easily prepare derivatives of this molecule has restricted the development of versatile chemistries for nanoparticle surface functionalization. Here, we report the design and synthes…
Aromatic amino acids strongly promote cross-β amyloid formation; whether the amyloidogenicity of aromatic residues is due to high hydrophobicity and β-sheet propensity or formation of stabilizing π-π interactions has been debated. To clarify the role of aromatic residues on amyloid formation, the islet amyloid polypep…
A combined density-functional theory and functional-renormalization-group method is introduced which takes into account orbital-dependent interaction parameters to derive the effective low-energy theory of weakly to intermediately correlated Fermi systems. As an application, the competing fluctuations in LiFeAs are in…
We report a consistent set of ab initio calculations of the electronic structures and electrical transport properties of $p$-type thermoelectric compounds $R$Fe${}_{4}$Sb${}_{12}$, where $R$ is a rattling filler selected from alkali metals (Na, K), alkaline earths (Ca, Sr, Ba), and rare earth metals (La, Ce, Pr, Yb).…
The decoherence of quantum objects is a critical issue in quantum science and technology. It is generally believed that stronger noise causes faster decoherence. Strikingly, recent theoretical work suggests that under certain conditions, the opposite is true for spins in quantum baths. Here we report an experimental o…