Materials Literature
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Zwitterionic polycarboxybetaine (pCB)-based materials have drawn special attention due to their outstanding properties of resisting proteins adsorption, biofilm formation and cell attachment on a variety of substrates and surfaces, reducing the uptake of pCB-coated nanosized materials, as well as providing the capabil…
We report on the thermal conductivity of atomic layer deposition-grown amorphous alumina thin films as a function of atomic density. Using time domain thermoreflectance, we measure the thermal conductivity of the thin alumina films at room temperature. The thermal conductivities vary ∼35% for a nearly 15% change in at…
The exploitation of catalytic promiscuity and the application of de novo design have recently opened the access to novel, non-natural enzymatic activities. Here we describe a structural bioinformatic method for predicting catalytic activities of enzymes based on three-dimensional constellations of functional groups in…
Tungsten and tungsten-based alloys are the primary candidate materials for plasma facing components in fusion reactors. The exposure to high-energy radiation, however, severely degrades the performance and lifetime limits of the in-vessel components. In an effort to better understand the mechanisms driving the materia…
We develop a nontoxic unentangled star-shape poly(ε-caprolactone) (UESPCL) plasticizer with excellent migration resistance for the production of phthalate-free flexible poly(vinyl chloride) (PVC) by means of the ring-opening polymerization of ε-caprolactone, initiated from the multifunctional core, combined with end-c…
Direct current electrical poling of textured hydroxyapatite ( HA p) ceramics is reported here to exhibit weak ferroelectricity and pyroelectricity, but a remarkably higher (six orders of magnitude) piezoelectricity. The piezoelectric strain coefficient is an order higher than that of bone and of the same order as that…
We have prepared polycrystalline R 2 NiMnO 6 (R = Nd , Eu , Gd , Dy , and Y ) samples by conventional solid‐state reaction and all the samples have shown monoclinic structure with P 2 1 / n space group. With the decrease in rare‐earth ionic size (< r R >), the bond angle decreases, correspondingly a decrease in ferrom…
Nisin loaded tripolymeric nanoformulation was prepared using three biocompatible polymers i.e. chitosan, sodium alginate and pluronic F68 which are permitted for use in food. The process variables were optimized to obtain efficient encapsulation and appropriate particle size. Mean particle size of nanoparticles was de…
The single-crystal X-ray structure of Au25(SC2H4Ph)16(pBBT)2 is presented. The crystallized compound resulted from ligand exchange of Au25(SC2H4Ph)18 with pBBT as the incoming ligand, and for the first time, ligand exchange is structurally resolved on the widely studied Au25(SR)18 compound. A single ligand in the asym…
OPINION article Front. Chem., 23 June 2014Sec. Chemical Biology Volume 2 - 2014 | https://doi.org/10.3389/fchem.2014.00040
We compute the Compton profile of Ni using the Local Density Approximation of Density Functional Theory supplemented with electronic correlations treated at different levels. The total/magnetic Compton profiles show not only quantitative but also qualitative significant differences depending weather Hubbard correction…
The CAMEA ESS neutron spectrometer is designed to achieve a high detection efficiency in the horizontal scattering plane, and to maximize the use of the long pulse European Spallation Source. It is an indirect geometry time-of-flight spectrometer that uses crystal analysers to determine the final energy of neutrons sc…
Inspired by the mussel adhesive protein and the lotus leaf, Ag-based double-layer polyester (DL-PET) textiles were fabricated for effective removal of organic pollutants in water. The DL-PET textiles are composed of a top superamphiphilic layer and a bottom superhydrophobic/superoleophilic layer. First, the PET textil…
We present a scanning transmission electron microscopy-electron energy loss spectroscopy (STEM-EELS) investigation of gold nanosphere chains with lengths varying from 1 to 5 particles. We show localized EELS signals from the chains and identify energy-loss peaks arising due to l = 1, 2, 3, 4, and 5 plasmon modes throu…
Hexagonal boron nitride (h-BN) is a prominent member in the growing family of two-dimensional materials with potential applications ranging from being an atomically smooth support for other two-dimensional materials to templating growth of molecular layers. We have studied the structure of monolayer h-BN grown by chem…
Aiming at spherical and monodisperse silver nanoparticles with diameters up to 100 nm, the potential of heterogeneous nucleation of silver particles was explored. Gold seed particles, mainly produced with a spark discharge generator, were carried by nitrogen through a three-zone tube furnace. Silver was evaporated at…
A model based on thermal fluctuations in conductors in random resistor-capacitor (R-C) networks has been shown to generate a 1/f^s noise with s in between 0 and 1, while in many real systems the noise exponent is between 0 and 2. The wider range of noise exponents is shown here to be generated using a model of random…
Using the recently proposed quantum electrodynamical formalism, we calculate the Casimir-Polder free energies and forces between the ground state atoms of Rb, Na, Cs and He${}^{\ast}$ and the plates made of Au, Si, sapphire and fused silica coated with a graphene sheet. It is shown that the graphene coating has no eff…
Metallic transition-metal oxides undergo a metal-to-insulator transition (MIT) as the film thickness decreases across a critical thickness of several monolayers (MLs), but its driving mechanism remains controversial. We have studied the thickness-dependent MIT of the ferromagnetic metal ${\mathrm{La}}_{0.6}$${\mathrm{…
We present measurements of inverse spin Hall effects (ISHEs) in which the conversion of a spin current into a charge current via the ISHE is detected not as a voltage in a standard open circuit but directly as the charge current generated in a closed loop. The method is applied to the ISHEs of Bi-doped Cu and Pt. The…