Materials Literature
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The electromechanical properties of arrays of vertically aligned multiwalled carbon nanotubes were studied in a parallel plate capacitor geometry. The electrostatic actuation was visualized using both optical microscopy and scanning electron microscopy, and highly reproducible behaviour was achieved for actuation volt…
A promising method to fabricate tissue-engineered blood vessels is to have cells synthesize the supportive extracellular matrix scaffold of the tissue-engineered blood vessel; however, a shortcoming of this method has been limited elastogenesis. Previously, we found that arterial smooth muscle cells (ASMCs) produced s…
Support effects in NO x storage-reduction (NSR) have been investigated by means of space- and time-resolved in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) using Pt−Ba catalysts supported on six different metal oxides (MO x = Al 2 O 3, TiO 2, SiO 2, CeO 2, ZrO 2, and Ce 0.5 Zr 0.5 O 2 ) an…
The assembly of polyoxometalate architectures based on Mn-Anderson clusters capped with different aromatic platforms via the ‘Tris’ linker (Tris = tris(hydroxymethyl)aminomethane), allows the formation and isolation of four new hybrid polyoxometalate clusters of 2–5 with the general composition of [n-N(C4H9)4]3[MnMo6O…
Abstract Synergistic inhibition of corrosion of carbon steel in low chloride environment using ascorbate as a synergist along with 2‐phosphonobutane‐1,2,4‐tricarboxylic acid (PBTC) and Zn 2+ is presented. The synergistic effect of ascorbate has been established from the present studies. In the presence of ascorbate, l…
Aurivillius phase, bismuth layer structured ferroelectric Bi(3.15)Nd(0.85)Ti(3)O(12) (BNdT) ceramics with average grain sizes from 90 nm and high densities (>97%) were fabricated by spark plasma sintering. Decreasing grain size produced a diffuse ferro-paraelectric phase transition and a decrease in the Curie point. C…
Abstract Different generations of hydroxy‐terminated dendritic poly(amidoamine) (GnOH) with ethylenediamine as a core were prepared by successive alternative addition of methylacrylate and the core up to the third generation while employing ethanolamine only in the last step of every full generation. The different ge…
Charge separation is known to occur in heterostructure nanocrystals with type II alignment. Transfer rates have been inferred from ultrafast measurements, but other elements relevant to this process, such as the role of the solvent and the internal degrees of freedom, are still poorly understood. The present study inv…
A significant visible light response of unintentionally doped ZnO nanowire (NW) field effect transistors (FETs) has been observed in a reversible manner (for illumination source on and off). In particular, under white light illumination (wavelength longer than 400 nm), the threshold voltage ( V T ) of the ZnO NW FET s…
A new crystal structure of the rabbit muscle L-lactic dehydrogenase (PDB code 3H3F) has been determined. The independent unit of this structure contains two tetramers, each of them with a unique constitution of two active sites with the open loop conformation and two with the loops closed over the actives sites. On th…
Effective cleavage of the N−H and O−H bonds at “metal-free” centers has attracted considerable attention due to the fundamental and industrial importance. In this paper, we show by density functional theory calculations that the pure silicon carbide nanotube (SiCNT) can effectively cleave the N−H bond of ammonia and t…
We describe the use of hydrophobic poly(aryl ether) dendrons to peripherally functionalize hydrophilic amine-containing superparamagnetic iron oxide microspheres (SPIO-NH2) in one step via imine formation. The reversible formation of imine bonds in the absence/presence of water renders dynamic control of the hydrophil…
Abstract Impedance spectra obtained for Al6061 samples that had been anodized and sealed in two different processes and subjected to thermal cycling at three different temperatures have been analyzed using the Equivcrt software using a three‐time constant model with four constant phase elements (CPEs). Excellent agree…
Phthalocyanines (Pcs) are commonly applied to advanced technologies such as optical limiting, photodynamic therapy (PDT), organic field-effect transistors (OFETs), and organic photovoltaic (OPV) devices, where they are used as the p-type layer. An approach to Pc structural diversity and the incorporation of a function…
Ultrathin films composed of titania nanosheets and Prussian Blue were prepared by using the modified Langmuir-Blodgett technique. The ultrathin films could be deposited in a layer-by-layer manner with lamellar structure. Upon band gap excitation of titania nanosheets, the generated electrons were injected into ferroma…
Abstract Plasma polymerized allylamine (ppAA) films were deposited in a radio‐frequency glow discharge plasma reactor using a continuous‐wave mode and varying the discharge power from 15 to 125 W. The deposition rate reached 26 nm · min −1 and was constant within at least half an hour of process. The chemical structur…
Cotton linters were hydrolyzed with different concentrations of HCl (2.5-15%) to prepare microcrystalline cellulose. Infrared spectroscopy and thermal analysis were used to follow the effect of hydrolysis on the molecular structure of the produced microcrystalline cellulose. The loss in weight and the degree of polyme…
Abstract A novel series of cationic surfactants containing Schiff base groups were synthesized by condensation of fatty amines namely: dodecyl, tetradecyl, hexadecyl and octadecyl amine and 4‐diethyl aminobenzaldehyde. The chemical structures of these surfactants were confirmed using elemental analysis, FTIR spectra,…
The application of in situ focused beam reflectance measurement (FBRM) and particle vision measurement (PVM) in monitoring transformation of glycine polymorphs is introduced. The effect of solvent composition and temperature on the transformation from β- to α-glycine was investigated. It is noted that the transformati…
Interplay of electron correlation and randomness is studied by using the Anderson-Hubbard model within the Hartree-Fock approximation. Under the coexistence of short-range interaction and diagonal disorder, we obtain the ground-state phase diagram in three dimensions, which includes an antiferromagnetic insulator, an…