Materials Literature
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While present studies on the integration of single-walled carbon nanotubes (SWNTs) with biomolecules have centered primarily on deoxyribonucleic acid and proteins, this report is focused on the binding of SWNTs with ribonucleic acid polymer poly(rU). We present fluorescence and spectroscopic evidences for the binding…
We demonstrated a process to create nanoscopic templates for the nanofabrication of patterned media using thin films of diblock copolymers. The self-assembled monolayers (SAMs) technique is used as a means to chemically modify the topographically confined trench surfaces to manipulate the wetting behavior of cylindric…
A thermodynamic model was developed to describe the stability of (Ba,Sr)TiO 3 (BST) solid solutions in the Ba–Sr–Ti–K–(EDTA)–H 2 O (EDTA = ethylenediaminetetraacetic acid) system. Phase diagrams were computed to identify the range of conditions suitable for making phase‐pure BST. Hydrothermal experiments were performe…
Two homologous series of esters derived from Schiff's bases containing the 1,3,4-thiadiazole unit (series 3 and 5) were synthesized and their liquid crystalline properties investigated by optical microscopy and differential scanning calorimetry. Depending on the position occupied by the carbonyl group, the smectic A p…
Abstract The adsorption of a commercial adhesive and two of its major components—an amine curing agent [2,4‐toluene diisocyanate urone (TDI urone)] and an adhesive prepolymer resin [diglycidyl ether of bisphenol A (DGEBA)]—on a hydrated aluminium surface and the hydrated surface coated with γ‐glycidoxypropyltrimethoxy…
We study the Mott-Hubbard metal-insulator transition in single-crystal V 2 O 3 using hard X-ray (HX: h ν = 5940 eV) core-level photoemission spectroscopy (PES). HX-PES enables a bulk probe of the electronic structure in the paramagnetic metallic and antiferromagnetic insulating phases. Metallic V 2 O 3 shows additiona…
Human intrinsic factor (IF) was purified from the recombinant plant Arabidopsis thaliana by affinity chromatography. Cobalamin (Cbl) saturated protein was separated by gel filtration into peaks I and II, which contained according to SDS electrophoresis the 50 kDa full-length protein IF(50) and a mixture of two fragmen…
The effect of cation substitution on the crystal and electronic structures of ferroelectric bismuth titanate has been systematically investigated. According to the x-ray diffraction analyses on Bi3.25A0.75Ti3O12 (A=Bi, La, Gd, and Y), it was found that the cation substitution gives rise to the contraction of the volum…
The results of the first pilot-scale kraft pulp oxygen bleaching catalyzed by polyoxometalate are presented. A modified heptamolybdopentavanadophosphate heteropolyanion (HPA) was used as the catalyst. Scale-up experiments clearly revealed the dependency of the pulp delignification rate on the mass- and heat-transfer p…
The structural stability of the hydrogen storage compound ${\mathrm{LiAlH}}_{4}$ was studied by Raman spectroscopy in the pressure interval 0--6 GPa. A slow phase transition from $\ensuremath{\alpha}\text{\ensuremath{-}}{\mathrm{LiAlH}}_{4}$ to a $\ensuremath{\beta}$ phase was observed to occur between 2.2 and 3.5 GPa…
Reactor type and voltage properties affected the reforming behavior of 1% methanol in N/sub 2/ with nonthermal plasma. Methanol conversion increased with voltage frequency for both a ferroelectric packed-bed reactor (FPR) and a silent discharge reactor (SDR), but they showed different sensitivities to frequency change…
Interfacial thermal resistance results of various nanotube and nanofiber coatings, prepared by chemical vapor deposition (CVD) methods, are reported at relatively low clamping pressures. The five types of samples examined include multi-walled and single-walled nanotubes growth by CVD, multi-walled nanotubes grown by p…
Uniform Ga 2 O 3 −C nanocables with an average core diameter of 40 nm, wall thickness of 6 nm, and lengths of up to dozens of μm were generated via co-thermal evaporation of gallium oxide and activated carbon powder. The nanocable formation is discussed based on thermodynamics and crystallography. Gallium oxide and ca…
The interplay between mechanical and electronic properties in carbon nanotubes leads to interesting characteristics in devices such as a nanotube cross structure. The fabrication of nanotube devices has often been based on random growth or deposition of nanotubes and subsequently searching for those in desired locatio…
Abstract Two novel porous nitrosamine traps have been synthesized in order to eliminate carcinogens from the environment. A functional mesoporous material, CuO/SBA‐15, has been synthesized by using an in‐situ coating method, with the addition of a guest salt to the reaction system to modify the porous materials before…
Biomaterials derived from ex vivo tissues offer a viable alternative to synthetic materials for organ replacement therapies. In this study, we describe the use of a tissue engineering scaffold derived from ex vivo arterial tissue to assess vascular cell adhesion within a three-dimensional perfusion bioreactor. With th…
Abstract Degradable segmented poly(ether‐ester‐urethanes) of variable segment chemistry and content were synthesized and characterized. Polycaprolactone diol, a series of poly(ether‐ester) block copolymers, and a diisocyanate giving non toxic degradation products were used to form the prepolymer. Cyclohexane dimethano…
Paclitaxel (Taxol) has demonstrated clinical activity in non-small-cell lung cancer (NSCLC), but its use has not led to marked improvements in survival. This ineffectiveness can in part be attributed to inadequate delivery of effective drug levels to the lung via systemic administration and to drug resistance mechanis…
A Power-electronic interface for supercapacitive-storage based substation in DC-transportation networks is proposed, which allows to feed as a current-source in any voltage conditions of the line. The system has been designed as a com-Pensation-substation to be placed at weak points like end-of-line stations, and can…
Abstract Three crystallographic phases have been observed for LiKSO 4 crystals between room temperature and the melting point. The study of these phases has involved many researchers for more than two decades of intense experimental investigations. Many publications with controversial results are found in the literatu…