Materials Literature
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An antioxidative liposome catalysis that mimics both superoxide dismutase (SOD) and peroxidase (POD) activities has been developed by using the liposomes modified with lipophilic Mn-(5,10,15,20-tetrakis[1-hexadecylpyridium-4-yl]-21H,23H-porphyrin) (Mn-HPyP). The SOD- and POD-like activities of the Mn-HPyP-modified lip…
We have studied the temperature-dependent evolution of the electronic and local atomic structure in the cubic colossal magnetoresistive manganite ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}\mathrm{Mn}{\mathrm{O}}_{3}$ $(x=0.3--0.4)$ with core and valence level photoemission (PE), x-ray absorption spectroscopy (…
Carbon nanotubes (CNTs)-based devices and their applications have received more and more attention, and several biomolecules have been found to be encapsulated into the inner space of the CNTs spontaneously. In this work, the molecular dynamics simulations demonstrate that a collagen-like peptide with a hydrophobic ce…
Cellulose was dissolved rapidly in a 9.5 wt % NaOH/4.5 wt % thiourea aqueous solution pre-cooled to -5 degrees C to prepare its concentrated solution, in which inclusion complexes (ICs) associated with cellulose, NaOH, thiourea, and water clusters were created. Physical gels could form in the cellulose solution at eit…
Carbon/carbon composites have been produced using chemical vapor deposition for forty–five years. Early composites were made on an empirical basis using multiple lengthy deposition cycles and often had microstructural and thickness variations in the pyrolytic carbon. While thin sections, such as aircraft brake disks,…
Abstract The corrosion of carbon steel in single‐phase (water with 0.1N NaCl) and two immiscible phases (kerosene‐water) using turbulently agitated system was investigated. The experiments were carried out for Reynolds number (Re) range of 38 000 to 95 000 using circular disc turbine agitator at 40°C. In two‐phase sys…
Phycology or algology is the study of the algae. The word phycology is derived from the Greek word phykos , which means “seaweed.” The term algology , described in Webster's dictionary as the study of the algae, has fallen out of favor because it resembles the term algogenic which means “producing pain.” The algae are…
A series of experiments is presented examining the thermo-electro-mechanical response of commercially-available, conditioned, shape memory alloy (SMA) wires (Flexinol, from Dynalloy, Corp.) during cyclic thermomechanical loading. A specialized experimental setup enables temperature control via a thermoelectric/heatsin…
We report the synthesis and characterization of polyvinyl alcohol (PVA) embolic particles modified with a clinically approved magnetic resonance (MR) contrast agent. PVA particles are used during transcatheter arterial embolization (TAE) procedures and this minimally invasive technique is a widely employed treatment f…
We propose a method for measuring hyper-Rayleigh scattering employing pulse trains produced by a Q-switched and mode-locked Nd:YAG laser. The use of the entire pulse train under the Q-switch envelope avoids the need of any device to scan the irradiance, as is usually done with nanosecond and femtosecond single-pulse l…
The homogeneous and heterogeneous reactions of hafnium (Hf) with boron (B) or carbon (C) powders were studied under non‐self‐propagating high‐temperature synthesis (SHS) conditions in searching for chemically aided processes of ultra‐high‐temperature ceramics at mild and practical conditions. The threshold interaction…
Laser-light-induced surface relief grating inscription was carried out in the newly synthesized azobenzene-functionalized poly(amide-imide)s having the same main- and side-chain structures but different substituents in the azobenzene groups. The gratings were inscribed employing the two-wave mixing technique with line…
Abstract Heck, Stille, Suzuki and three‐component coupling reactions with hydrophobic substrates have been carried out in water. The substrates are initially transformed by a general procedure into a microemulsion, which consists of nearly 90 % water with the aid of sodium dodecyl sulfate and either PrOH or BuOH. The…
The synthesis and characterization of palladium-loaded functionalized mesostructured silicates, designated as Pd-SHSBA-16 and Pd-SHKIT-6, are described. These solids were tested as heterogeneous catalysts for the Suzuki−Miyaura reaction. The materials were characterized by 29 Si NMR, 13 C NMR, nitrogen adsorption isot…
Abstract Poly(amide‐imide) resins are versatile high‐performance polymers used as primary electrical insulation. They can be synthesized by three well‐established methods, of which only two are commercially exploited. Outstanding characteristics include high thermal performance, chemical and abrasion resistance, and l…
Sintering in air was performed on pure and CaO/TiO 2 co‐doped slip cast α‐alumina samples. The relative density/grain size relationship, referred to as sintering path, has been obtained for each composition. Fully dense samples were obtained after an additional hot isostatic pressing (HIP) step on the pure and doped m…
Abstract Poly(ethylene terephthalate) (PET) nanocomposites were prepared by melt‐extruding mixtures of PET and functionalized multiwalled carbon nanotubes (MWNTs) with some interaction with PET molecules. For the functionalization of MWNTs, benzyl isocyanate and phenyl isocyanate with different molecular flexibility w…
This paper addresses a multiscale strategy for the prediction of anhysteretic magneto-elastic behavior and its application to the definition of a magneto-elastic constitutive law for Terfenol-D. The multiscale modeling is based on an energetic procedure at the single crystal scale. Localization and homogenization proc…
Calculations based on density functional theory show that TiC 3 B 2 H 5 multidecker complexes can not only store up to 5.1 wt % hydrogen reversibly in nearly molecular form, but, with an average binding energy of 0.58 eV/H 2 molecule, they also possess the thermodynamics and kinetics of an ideal hydrogen storage mater…
As is known, boron nitride nanotubes (BNNTs) are usually not defect free, and various types of defects can inevitably be formed in the process of tube growth and preparations. While previous studies only considered the chemical functionalization of “perfect” BNNTs by transition metals, there was no report on the inter…