Materials Literature
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In order to elucidate the reaction zone in porous anodes on yttria-stabilized zirconia (YSZ), ac impedance and steady-state polarization measurements are carried out in gas mixtures with different electrode thicknesses, 7, 20, and anodes. Steady-state polarization current becomes larger as the electrode becomes thicke…
Electrodeposited films of poly(ethylenedioxythiophene) (PEDOT) present a rough morphology and are wettable by water and oil. The covalent binding of low free energy fluorinated chains on the monomer before polymerization lowers the surface energy of the electroformed polymers sufficiently to give rise to superhydropho…
We report a simple one-step synthesis to prepare a porous high surface area copper(II) aerogel; calcination of the aerogel at relatively low temperatures induced a phase change which resulted in the formation of a mesoporous copper(II) oxide material.
CdSe nanotubes were successfully synthesized by a sonoelectrochemical technique for the first time; the formation process of the CdSe nanotubes was carefully studied and a sonication-induced roll-up mechanism is proposed.
Homogeneous, fluorescent, sugar-functionalized metallic dendrimers that contain varying numbers and types of monosaccharides have been prepared using a self-assembly process and have been shown to be highly efficient lectin sensors in turbidity assays.
1-D morphological tuning in the riboflavine(R)-melamine(M) hydrogel system (from helical fiber to rod-like to tubular morphology) with an interesting photoluminescence property by changing the composition of the RM components.
A 1 : 3 molar reaction of YI3 and AgI in dimethylformamide (DMF) in the presence of NH4I afforded [Y(DMF)8][Ag3(mu3-I)(mu-I)3I2] (1) with good yield, whereas the similar reaction in dimethylsulfoxide (DMSO) gave complexes [Y(DMSO)8][Ag2(mu-I)3I2] (2) and/or [Y(DMSO)8]2[Ag4(mu3-I)2(mu-I)4I2][I]2 (3), depending on the r…
A new phase separation methodology has been initially proposed for creating white or colorful super-hydrophobic coatings on the surfaces of various material substrates simply by using a common polymer, i.e., polycarbonate (PC), and its solvent and non-solvents suitably selected. The cleaned substrates were first dippe…
Unusual hierarchical stacked superstructures of cubic beta-In2S3 were fabricated via a facile hydrothermal process in the presence of a surfactant cetyltrimethylammonium bromide CTAB; the 3D superstructures were developed by helical propagation of surface steps from microflakes of 10-20 nm thickness.
The impedance behavior of nanotubular self-organized porous TiO 2 ͑PTO͒ films with thickness of Ͼ2 m, 100 nm pore diameter, and 150 nm average spacing formed on titanium by anodization in 1 M Na 2 SO 4 solution +0.5 wt % NaF was investigated and compared to the behavior of compact TiO 2 layers ͑CTO͒.At potentials clos…
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The feasibility of using Gd dendrimer-based macromolecules (Gd-G8 dendrimer) as a dual CT and MR contrast agent for monitoring convection-enhanced delivery of therapy in the brain is evaluated both in vitro and in vivo with optimal dosing established. In vitro CT attenuation values of the Gd-based agents ( approximate…
The synthesis, structures and multifunctional sensory properties of amphiphilic poly[2,7-(9,9-dihexylfluorene)]-block-poly[2-(dimethylamino)ethyl methacrylate] (PF-b-PDMAEMA) rod-coil diblock copolymers are reported. The new copolymers, with PDMAEMA coil lengths of 31, 45, 93 and 185 repeating units, were synthesized…
A 2205 duplex stainless steel, which had undergone a slow cooling process in order to precipitate intermetallic phases, was characterized by means of magnetic force microscopy (MFM) and scanning Kelvin probe force microscopy (SKPFM), in addition to conventional scanning electron microscope and energy-dispersive spectr…
The development of a meaningful dissolution procedure for drug products with limited water solubility has been a challenge to the pharmaceutical industry. Aceclofenac (BCS Class II drug) is a nonsteroidal anti-inflammatory drug. There is no official dissolution medium available in the literature. In the present study,…
The morphological changes of micelles composed of triblock copolymer of ethylene oxide and propylene oxide (EO20PO70EO20) in the presence of different inorganic salts and ethanol have been investigated using dynamic light scattering (DLS), rheometry, and cryogenic transmission electron microscopy (cryo-EM). The follow…
The performances of hydrous Ru oxide supercapacitors have been characterized by cyclic voltammetry, constant current discharge, and impedance experiments. The effective series resistance (ESR) was reduced to 0.10 Ω cm2 by using a Nafion®NRE 211 separator, providing a power density of over 100 kW kg−1 at 5 W h kg−1, ca…
The reaction of (S)P[N(CH(3))N=CH-C(6)H(3)-2-OH-3-OCH(3)](3) with a Mn(II) salt followed by a Ln(III) salt (Ln = Eu, Gd and Dy), afforded linear heterometallic complexes [L(2)Mn(2)Ln](+) that showed interesting magnetic properties.
Biological materials naturally display a variety of functional structures highly organized at the nanoscale. Various bioassemblies have been shown to template complex, multidimensional inorganic nanoarchitectures that are typically not available by conventional synthetic methodologies. In addition to the various natur…
The excellent pseudoelasticity, shape memory and biocompatibility of Nitinol has made it a leading candidate for various applications, including aerospace, micro-electronics and medical devices. Challenges associated with the welding Nitinol need to be resolved before its full potential in practical applications can b…