Materials Literature
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In this paper we present an investigation into the calculation of the Frank elastic constants of hard platelets via molecular simulation and virial expansion beyond second order. Monte Carlo simulations were carried out and director fluctuations measured as a function of wave vector k, giving the elastic constants thr…
A new method for immobilizing horseradish peroxidase (HRP) in the enzymatic synthesis of poly(3,4-ethylenedioxythiophene) (PEDOT) is reported. This method is based on 3,4-ethylenedioxythiophene monomer droplets created due to its poor solubility in water and in the stabilization effect that these monomer droplets show…
Abstract Conducting polyaniline‐polymannuronate (PANI‐PM) composites were synthesized via in situ deposition techniques. By dissolving different weight percentages of polymannuronate (PM) (5, 10, 15, and 25%), the oxidative polymerization of aniline was achieved through the use of ammonium persulfate as oxidant. Struc…
Abstract The development of nanostructured microcapsules based on a biomimetic lipid bilayer membrane (BLM) coating of poly(sodium styrenesulfonate) (PSS)/poly(allylamine hydrochloride) (PAH) polyelectrolyte hollow microcapsules is reported. A novel engineered ion channel, gramicidin (bis‐gA), incorporated into the li…
Measurements as a function of both magnetic field and temperature along with first principles spin polarized calculations explain the remarkable magnetoelastic properties exhibited by GdNi below its Curie temperature. The lattice constants $a$ and $b$ elongate continuously by 0.35% and 0.49%, respectively, while the $…
By using FeCl 3 ·6H 2 O as an oxidant, a novel organic/inorganic complex nanostructure, poly(3,4-ethylenedioxythiophene)/β-akaganeite (PEDOT/β-Fe 3+ O(OH,Cl)) nanospindle, was successfully synthesized in aqueous solution in the presence of cetyltrimethylammonium bromide (CTAB) and poly(acrylic acid) (PAA). The lengths…
A facile route was developed to create surface porous polystyrene/poly(vinylpyrrolidone) (PS/PVP) films, via phase separation in a dip-coating process, for antireflection applications. The film thickness, pore size, and pore depth of the product films can be effectively adjusted with the concentration of the PS/PVP (v…
We report an alternative medium of transparent upconverting colloid containing lanthanide ion doped NaYF(4) nanocrystals for three-dimensional (3D) volumetric display. The colloids exhibit tunable upconversion luminescence with a wide spectrum of colors by adjusting the doping concentrations of the nanocrystals and th…
The high atomic number of bismuth iodide and the high-sensitivity photoluminescence quenching of conjugated polymers are leveraged in their nanocomposites for the detection of high-energy photons. With the introduction of oleylamine, the composites can be processed from solutions in organic solvent into high-quality f…
Multiferroic compound (Bi0.9Pb0.1)(Fe0.9Ti0.1)O3 (BPFTO), having particle size of 15–25 nm, was synthesized by solution combustion method. BPFTO shows the coexistence of ferroelectricity and magnetism at room temperature. Significant enhancement in magnetic moment with moderate value of the electrical polarization is…
The anodic oxide grown on steel in 50% NaOH at different temperatures and applied potentials has many remarkable properties. Optically the appearance of the oxide can vary from black to dichroic, to a light brown color. Field-effect scanning electron microscopy and X-ray diffraction reveal the oxide to be a nanoporous…
Abstract It is demonstrated that a good biomimetic model lipid membrane with dynamic fluidity can be established on optically transparent nanocrystalline diamond (OTND) with surface roughness below 10 nm. Maigainin II, an antimicrobial peptide, is chosen to investigate the permeation of artificial bacterial membranes…
Three-dimensional chitosan self-assembled nanostructures are reported whose morphology can be adjusted by tuning of the processing parameters, including the rate of solvent removal, the surface roughness of the substrate, and the polarity of the solvent used. Upon this, chitosan nanostructures of more interesting morp…
We report reproducible p-type transport properties in nitrogen-doped ZnS nanoribbons (NRs) synthesized by applying ammonia gas as the acceptor source. Field-effect transistors fabricated from individual ZnS NRs revealed the p-type behavior of ZnS NRs and significant enhancement in p-type transport properties upon anne…
Abstract Novel segmented polyurea elastomers containing soft polyisobutylene (PIB) segments were synthesized and characterized. The key ingredient, primary amine‐telechelic PIB oligomers (NH 2 ‐PIB‐NH 2 ) with number average molecular weights of 2500 and 6200 g/mol were synthesized. PIB‐based polyureas were prepared b…
Thin cellulose films were prepared by dissolving carboxymethylated cellulose fibers in N-methyl morpholine oxide and forming thin films on silicon wafers by spin-coating. The adsorption of cationic polyacrylamides and polydiallyldimethylammonium chloride onto these films was studied by stagnation point adsorption refl…
The synthesis of monodisperse nanocrystals is an important topic in the field of nanomaterials not only for practical applications, but also for scientific interest in fundamental research. In this feature article, we mainly focus on synthesis of monodisperse nanocrystals by a two-phase approach without the separation…
The surface chemistry of isocyanate, NCO, and its precursor, isocyanic acid, HNCO, on Pt(111) was studied with the techniques of reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD). Isocyanate is known to form on platinum-group metals in the course of the catalytic reduction…
Protein motors play a central role in many cell functions. Understanding the operating principles of molecular motors is crucial to comprehending intracellular protein transport and cell motility. Due to the small size and the negligible inertia of molecular motors, the motor motion is damped by high viscous friction…
An adapted method of optimization of coated metallic nanoparticles is introduced to perform the optimal choice of material and sizes for better scattering or absorption efficiency. This design of nanoshells, involving plasmon resonance, is achieved to maximize the efficiency factors. The presented method is turned to…