Materials Literature
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We have previously demonstrated that liposomal doxorubicin (DXR), targeted against the CD 19 receptor of human B lymphoma (Namalwa) cells resulted in selective affinity of SIL[anti-CD19] for CD19+ Namalwa cells in vitro and significantly increased therapeutic efficacy in mice compared to non-targeted liposomal DXR or…
Synthetic hydrotalcite calcined at 350-550 °C was used for the removal of arsenate, chromate, and vanadate ions from water solutions. The initial anion concentrations were 0.002 mol l -1 . The sorption isotherms were measured at 20 °C and at neutral pH. The Langmuir adsorption isotherm was used for the sorption capaci…
Photoinduced optical phenomena in amorphous Sb2Se3–BaCl2–PbCl2 glasses are studied using experimental spectroscopic and theoretical quantum chemical methods. Photoinduced two-photon absorption (TPA) (for λ=10.6 μm) and second harmonic generation (SHG) (for the output wavelengths 5.3 μm) were measured. CO laser (λ=5.5…
Smectic liquid-crystalline states have been successfully gelled by low molecular weight hydrogen-bonded molecules and anisotropic fibrous aggregates of the gelling agents are obtained when the sol–gel transition occurs within the smectic temperature range.
We show how the growth of a dynamical correlation length and its associated susceptibility recently observed by the present authors and co-workers as T c is approached can be understood in an appropriate theoretical framework. We discuss some predictions for these quantities in the region below T c which have not yet…
The new dinuclear compounds [Ni2(L1)(N3)(H2O)][CF3SO3]3·4H2O 1, [Ni2(L1)(N3)][ClO4]3·MeCN· 2H2O 2, [Co2(L1)(N3)][ClO4]3·H2O 3, and [Mn2(L2)(N3)][CF3SO3]3 4 have been prepared {L1 = N[(CH2)2NHCH2(C6H4-m)CH2NH(CH2)2]3N; L2 = N[(CH2)2NHCH2(C6H4-p)CH2NH(CH2)2]3N}. The crystal structure of [Ni2(L1)(N3)(H2O)][CF3SO3]3·2H2O·…
Crystalline single-phase hexagonal fluorides with nominal compositions NaY 1–x–y Yb x Pr y F 4 (with 0≤x≤1 and y≤0.05) have been prepared by a coprecipitation technique without the need of any thermal treatment as a final step. Compared with the fluorides prepared by solid state chemistry, this protocol allows better…
New sensing interfaces have been constructed by the non-covalent crosslinking of 12 nm Au colloids with ‘molecular square’ transition-metal complexes.
A novel methodology is proposed in this study to evaluate the tensile strength of biofilms by using a newly developed tensile test device. Three different types of biofilms were prepared for tensile test: Run 1 biofilm was aerobically cultivated on glucose, and Run 2 and Run 3 biofilms were denitrifying biofilms grown…
Aluminium chlorohydrate (ACH) which contains Al polycations such as the Al 13 7+ Keggin ion is an efficient source of Al for post-synthesis alumination of purely siliceous MCM-41 resulting in materials (herein designated AlMCM) with excellent structural integrity and enhanced acidity and catalytic activity. The amount…
A unique supramolecular solid assembly with very wide channels has been formulated with aquazinc tetra(4-carboxyphenyl)porphyrin building blocks; the open porphyrin lattice is sustained by characteristic stacking interactions and multiple hydrogen bonding, it comprises only about 39% of the crystal volume, and preserv…
P69 is an isozyme of the medium size class of human 2'-5' oligoadenylate synthetases. In this study, recombinant P69 was expressed and used for enzymological and structural investigations. Bacterially expressed P69 was inactive whereas the same protein expressed in insect cells was highly active. Whether this differen…
The aniline–zinc porphyrin interaction is an order of magnitude weaker than the corresponding pyridine–zinc porphyrin interaction, but it is still strong enough to cause self-assembly of zinc aminoporphyrins in solution. Three isomeric systems are reported, two form self-assembled dimers, but the geometry of the third…
The extracellular polyhydroxybutyrate (PHB) depolymerase gene (phaZPst) of Pseudomonas stutzeri was cloned and sequenced. phaZPst was composed of 1,728 bp encoding a protein of 576 amino acids. Analyses of the N-terminal amino acid sequence and the matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF)…
Ferromagnetic La(Fe/sub x/Si/sub 1-x/)/sub 13/ compounds with x/spl ges/0.87 show an itinerant metamagnetic transition above the Curie temperature T/sub c/. Since a large volume change of about 1.5% is caused by the transition, the present compounds have a possibility for practical applications as giant magnetostricti…
The ab initio calculations of the ground-state properties of cubic C-BN solid solutions are presented for the first time to our knowledge. The Löwdin perturbation technique has been used in the ab initio LMTO-ASA method to calculate the total energy, the equilibrium lattice constant, the bulk modulus and its pressure…
Cu+ ions, with characteristic emission at 540 nm, have been considered to be responsible for the high activity of Cu-ZSM-5 in NO decomposition. However, two types of Cu+ ions located in different structures, i.e. in ZSM-5 and Y, exhibit the 540 nm emission, but the Cu ions in Y zeolite do not exhibit such a unique act…
Key findings are presented from a systematic study which evaluated the performance of chemical vapor deposited (CVD) nitrogenrich tantalum nitride films as a diffusion barrier in copper (Cu) based metallization schemes. For this purpose, 3800 Å thick Cu films were grown by physical vapor deposition (PVD) on 550 Å thic…
A cerium(IV) double decker porphyrin 2 bearing two pairs of 4-pyridyl groups and two pairs of 3,5-dimethoxyphenyl groups was synthesized. In the presence of chiral dicarboxylic acid guests with a two carbon spacer [e.g., (1R,2R)-cyclohexane-1,2-dicarboxylic acid and Boc-L-aspartic acid] 2 gave a CD-active species. The…
The formation, by coprecipitation, of a Mg-Al layered double hydroxide (LDH) intercalate containing nitrilotriacetate (NTA) anions has been observed. The intercalated LDH has a basal spacing close to 12 Å (gallery height 7.2 Å). The rehydration of a Mg-Al mixed oxide (formed by calcination at 500 °C of a Mg-Al carbona…