Materials Literature
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The step-wise assembly of the high nuclearity cluster, {[Ni(II)(H2O)5]6[Co(III)(tmphen)2]3[Fe(II)(CN)6]2}13+, is achieved by treating {[Co(tmphen)2]3[Fe(CN)6]2} with six equivalents of Ni(ClO4)2 in aqueous MeOH.
The majority of drug products are solid dosage forms, most of which contain the drug substance in the crystalline state. This review considers the forces responsible for crystal packing, the various types of pharmaceutical crystals, and the methods used to determine the structure of pharmaceutical crystals. These topi…
Epiclon [3a,4,5,7a-tetrahydro-7-methyl-5-(tetrahydro-2,5-dioxo-3-furanyl)-1,3-isobenzofurandione] (1) was reacted with L-methionine (2) in acetic acid and the resulting imide-acid 3 was obtained in high yield. The diacid chloride 4 was prepared from diacid derivative 3 by reaction with thionyl chloride. Thermostable p…
Although dioxazolylethene 1a did not show any photocoloration in the single crystalline phase, 1a displayed photochromism in the mixed crystal containing both 1a and dithiazolylethene 2a ; the mixed crystal changed color from colorless to red, orange, and yellow upon irradiation with light of appropriate wavelengths.
A technique using conductivity relaxation on porous bodies was used to determine the oxygen surface exchange coefficient, k chem , of mixed conducting La 0.6 Sr 0.4 Co O 3 − δ (LSC40). The results from the porous bodies were compared with values of k chem obtained on dense samples of LSC40 using the same technique. Co…
Large increases in the efficiency of the Sr 2 Si O 4 : Eu yellow phosphor under the 450 ‐ 470 nm excitation range have been achieved by adding the co-doping element ( Ba 2 + and Mg 2 + ) in the host. In order to apply to white light-emitting diodes (LEDs), we have synthesized a Ba 2 + ∙ Mg 2 + co-doped Sr 2 Si O 4 : E…
The graphite grade ATR-2E was developed as a reference material for future High-Temperature Reactors (HTR) in the framework of Germany‘s former R&D; Programme „HTR with Spherical Fuel Elements“ by the former company Sigri Elektrographit GmbH. From 1975 to about 1990, the former Kernforschungsanlage Jülich GmbH inv…
The biomineralization capacity of the photosynthetic marine diatom Nitzschia frustulum was harnessed to fabricate Si-Ge oxide nanocomposite materials. Germanium was incorporated into the diatom cell by a two-stage cultivation process. In stage 1, the N. frustulum cell suspension was grown up to cell density of 3 x 10(…
Journal URL: http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=journal&sessionid=85597106; http://www.ingentaconnect.com/content/sgt/pcg; http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=%20PC/PC-00a&sessionid=85597106
Liposomes have been widely used delivery systems, particularly relevant to the development of cancer therapeutics. Numerous liposome-based drugs are in the clinic or in clinical trials today against multiple tumor types; however, systematic studies of liposome interactions with solid or metastatic tumor nodules are sc…
Two new dithiazolylethenes, 1a {1,2-bis[5′-methyl-2′-(2′′-pyridyl)thiazolyl]perfluorocyclopentene} and 2a {1,2-bis[4′-methyl-2′-(2′′-pyridyl)thiazolyl]perfluorocyclopentene}, have been synthesized. Their photochromic behavior has been fully investigated in solution as well as in the crystalline phase. They display bot…
The modelling of dry knitted reinforcements for structural composite parts at the mesoscopic scale is essential to establish simulation tools related to shaping processes. Deformation modes of such structures are linked to the textile's manufacturing process, resulting in an anisotropic heterogeneous structure. This o…
1,10-Phenanthroline-appended cholesterol-based gelators (1 and 2) and their non-gelling reference compounds (1′ and 2′) were synthesized. It was shown that the gelation abilities of 1 and 2 are quite different, in spite of their structural similarity. Compound 1 can form gels with various kinds of organic solvents, wh…
Crystalline thin films of vanadium pentoxide have been deposited by dc sputtering using a vanadium target. Depending on the power applied, two set of samples thick characterized by a 00l or an h 00 preferred orientation have been synthesized. Investigation of their respective electrochemical properties as positive ele…
The lamellar phase in colloidal suspensions of positively charged platelets of layered double hydroxides (LDHs) was studied with synchrotron small angle X-ray scattering and optical observations.
The adhesion of plated metals on top of chemically treated epoxy layers for build-up purposes was examined. Specifically, the influence of wet chemical pretreatments on the adhesion of plated copper to epoxy polymer is investigated. This adhesion is related to the surface roughness of the polymer and the chemical comp…
A solid-oxide fuel cell/gas turbine hybrid system for auxiliary aerospace power is analyzed using 0-D and 1-D system-level models. The system is designed to produce 440kW of net electrical power, sized for a typical long-range 300-passenger civil airplane, at both sea level and cruise flight level (12,500m). In additi…
A wet chemistry procedure which couples chemical functionalization and a dispersion—centrifugation cycle was applied to the dissolution and purification of as-prepared electric-arc produced single-walled carbon nanotubes (SWNTs). It is validated that K2S2O8 treatment generates hydrophilic groups such as carboxyl and h…
The family of bismuth titanate, Bi4Ti3O12 (BIT) layered-structured ferroelectrics materials is attractive from the viewpoint of their application as electronic materials such as dielectrics, piezoelectrics and pyroelectrics, because they are characterized by good stability of piezoelectric properties, a high Curie tem…
We describe new developments in hybrid conjugated materials containing metal complexes or nanoparticles. Phosphino-oligothiophenes are useful building blocks for metal-containing polymers and oligomers, and as cross-linkable surface passivating groups for metal nanoparticles. These materials may find application as ne…