Materials Literature
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Molecular dynamics simulations are employed to elucidate the important factors in mechanical energy transfer between carbon nanotubes. Our calculations show that sharp resonance effects allow for near complete and highly efficient energy transfer. In addition, the weak coupling between two nanotubes sets the time scal…
Polarization and angle-resolved two-photon photoelectron spectroscopy was employed to determine the adsorption geometry of di-tert-butyl-perylene when anchored via two different acid groups on rutile $\mathrm{Ti}{\mathrm{O}}_{2}(110)$. With the carboxylic acid group as anchor and a rigid bridge group the binding geome…
ADVERTISEMENT RETURN TO ISSUECommunication to the...Communication to the EditorNEXTIn-Situ Formation of CdS Nanoarrays by Pore-Filling Nanoporous Templates from Degradable Block CopolymersKuan-Hsin Lo, Wen-Hsien Tseng, and Rong-Ming HoView Author Information Department of Chemical Engineering, National Tsing-Hua Unive…
We have synthesized a Sr 2 CrReO 6 double perovskite sample with the expected high Curie temperature ≈ 600 K, which shows negligible impurity phases and ≈ 15% Cr/Re structural antisite disorder as shown by X-ray and neutron diffraction. High-field magnetization measurements up to 47 T show that the saturation magnetiz…
Abstract The effect of trihydrated alumina (Al 2 O 3 , 3H 2 O) (ATH) filler in ethylene‐vinyl acetate copolymer (EVA) and silicone rubber blends was investigated by performing a series of laboratory experiments to simulate different natural aging conditions. Samples with varying ATH content in a 50‐50 blend of EVA and…
Diffusion-weighted magnetic resonance imaging provides a vivid description of the little understood role played by interfacial interactions with macroscopic bodies in the cooperative self-assembly of clay nanoplatelets suspended in water. The interfacial interaction between hydrophilic glass walls and clay platelets i…
We report on the fabrication of micropatterned polymer surfaces that allow the reversible inversion of surface topography, charge, and wettability. Micropatterned surfaces were prepared by grafting two oppositely charged polyelectrolytes (poly(acrylic acid) and poly(2-vinylpyridine)) using a combination of photolithog…
The deleted in liver cancer 2 (DLC2) is a tumor suppressor gene, frequently found to be underexpressed in hepatocellular carcinoma. DLC2 is a multidomain protein containing a sterile alpha-motif (SAM) domain, a GTPase-activating protein (GAP) domain, and a lipid-binding StAR-related lipid-transfer (START) domain. The…
The addition of molecular oxygen across two rings of the armchair surface of a model graphite has been studied using density functional theory at the B3LYP/6-31G( d ) level of theory. Chemisorption, desorption, rearrangement, and surface migration pathways were characterized and kinetic parameters were computed in ord…
Abstract— A new optical rewritable (ORW) liquid‐crystal‐alignment technology has been developed to create a display and to demonstrate its maturity and potential. ORW displays have no electrodes and use polarizers as substrates. The display requires no photolithography on plastic. Its simple construction secures durab…
The reaction of the dinuclear peroxotungstate, [(n-C4H9)4N]2[{WO(O2)2}2(mu-O)] (II), with H2O2 gives the novel mu-eta1:eta1-peroxo-bridging dinuclear tungsten species, [(n-C4H9)4N]2[{WO(O2)2}2(mu-O2)] (I), which has been characterized by X-ray crystallography, elemental analysis, IR, Raman, UV-vis, and 183W NMR. Only…
We present kinetics data of O2, n/iso-butane, CO2, and CO adsorbed at ultrahigh vacuum conditions on TiO2 nanotube (TiNTs) arrays produced by electrochemical anodization; amorphous and polycrystalline (anatase and mixed anatase/rutile) TiNTs have been studied addressing structure-activity relationships. Oxygen distinc…
By employing Monte Carlo simulations for various tube diameters and preferences of the tube surface for the A, B, and C segments, the morphologies of A(5)B(5)C(5), A(5)B(10)C(5), and A(5)B(5)C(10) triblock copolymer melts confined in nanocylindrical tubes were examined. The interaction parameters between different seg…
Gyroid-to-cylinder transition in a diblock copolymer melt under an electric field is studied by real-space dynamical self-consistent-field theory. Starting from an equilibrium gyroid structure, we apply an electric field along [111], [11̄0], and [112̄] directions of the conventional unit cell of the gyroid structure.…
Within the Landau-de Gennes phenomenological theory, we study the influence of an applied electric field with average strength E{a} on the position of a nematic line defect with topological charge M=+/-1/2 in a hybrid cell. We explore the biaxial structure of the defect core and we describe its expulsion from the cell…
The synthesis of poly(pyrrole), poly(terthiophene), and poly(3,4-ethylenedioxythiophene) with unusual fibrillar morphologies has been achieved by chemical polymerization in a biphasic ionic liquid/water system. Use of aqueous gold chloride as the oxidant, with the monomers dissolved in a hydrophobic ionic liquid, allo…
One of the important routes for the production of zirconia is by chemical treatment and removal of silica from zircon sand (ZrSixOy). We present here a completely green chemistry approach toward enrichment of zirconia in zircon sand; this is based on the reaction of the fungus Fusarium oxysporum with zircon sand by a…
The electrical response of an individual multiwalled carbon nanotube (MWNT) and its contacts, welded to a coplanar waveguide (CPW), was measured up to 24 GHz using a technique that removes environment effects. This is the first time MWNT contact effects have been systematically isolated from the CPW. Each contact resp…
Sheared self-assembled lamellar phases formed by symmetrical diblock copolymers are investigated through dissipative particle dynamics simulations. Our intent is to provide insight into the experimental observations that the lamellar phases adopt parallel alignment at low shear rates and perpendicular alignment at hig…
Tetrakis(aryloxy)phthalocyanine (4c) and its Zn congeners (4a and 4b) and Ni congener (4d) were synthesized, and their self-assembling properties in coordinating and non-coordinating solvents were investigated by absorption and fluorescence spectroscopy, matrix-assisted laser desorption ionization time-of-flight mass…