Materials Literature
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The quinonoid analogues of TTF are better electron donors than TTF itself. Their prototype 4 has now been synthesized for the first time. Wittig–Horner reaction of the dithiol derivative 1 with the cyclopentadiene adduct of benzoquinone, 2, gives 3, which undergoes retro-Diets–Alder reaction to yield 4 as dark red cry…
The formation of liposomes and their application as delivery systems for injectable drugs are described. Liposomes are microscopic vesicles composed of one or more lipid membranes surrounding discrete aqueous compartments. These vesicles can encapsulate water-soluble drugs in their aqueous spaces and lipid-soluble dru…
Electrochemical and spectroscopic measurements were used to characterize the electrochromic behavior of sputtered V2O5 films. In response to lithium intercalation, the fundamental optical absorption edge of V2O5 shifts to high energies by 0.20–0.31 eV as the lithium concentration increases from Li0.0V2O5 to Li0.86V2O5…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInclusion of polyaniline filaments in zeolite molecular sievesPatricia Enzel and Thomas BeinCite this: J. Phys. Chem. 1989, 93, 17, 6270–6272Publication Date (Print):August 1, 1989Publication History Published online1 May 2002Published inissue 1 August 1989https://pubs.acs.o…
Bacteria with temperature optima of 51–54°C and pH optima of 3.5–4.5 were isolated from geothermal soil collected from Mount Erebus, Ross Island, Antarctica. The isolates were enriched on medium designed for the growth of Thermoplasma but the strains found were members of the genus Bacillus. Comparisons with other the…
Reactive element additions may promote the formation of protective oxide scales on high temperature alloys, and improve long term oxidation resistance by limiting the rate of scale growth and inhibiting scale failure processes. Various modifications to transport properties and mechanical behaviour have been proposed t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLuminescence study of complexation of europium and dicarboxylic acidsPierre P. Barthelemy and Gregory R. ChoppinCite this: Inorg. Chem. 1989, 28, 17, 3354–3357Publication Date (Print):August 1, 1989Publication History Published online1 May 2002Published inissue 1 August 1989…
RAD is an interactive computer program for radial distribution analysis of X-ray diffraction data from amorphous materials. RAD has been written in Fortran 77 and runs on IBM PC/XT/AT or compatible computers.
Surface tension data can be used for estimating the solubility of polymers in liquids. By determining the apolar and the polar components of the surface tension of polymers and of solvents, the attractive free energy, δG 121, of a polymer (1) in a given solvent (2) can be established. By also taking into account the c…
The fluorescent pseudomonads are classified as a group, one characteristic of which is that they do not accumulate poly-3-hydroxybutyrate (PHB) during nutrient starvation in the presence of excess carbon source. In this paper we show that prototype strains from this subclass, such as Pseudomonas aeruginosa, Pseudomona…
The crystal structure of the complex of the anti-lysozyme HyHEL-10 Fab and hen egg white lysozyme has been determined to a nominal resolution of 3.0 A. The antigenic determinant (epitope) on the lysozyme is discontinuous, consisting of residues from four different regions of the linear sequence. It consists of the exp…
SIR 88 is an integrated package of computer programs for the solution of crystal structures. The package is based on the estimation of one- and two-phase structure seminvariants and three- and four-phase structure invariants according to the theory of representations [Giacovazzo (1977). Acta Cryst. A 33 , 933–944; (19…
The physical problem considered is that of a drop of liquid forming a bridge between two parallel planar plates, where the contact curves between the drop and the planes are not prescribed a priori. It is shown that for sufficiently large volumes, a stable drop must exist, and that no bifurcation can occurwithin the f…
Abstract not Available.
The functional forms of biominerals, R.J.P.Williams crystallochemical strategies in biomineralization, S.Mann carbonate calcification in algae - initiation and control, M.A.Borowitzka matrix-crystal interactions in CaCO(3) Biomineralization, A.P.Wheeler and C.S.Sikes stereochemical and structural relations between mac…
Materials science treats the relations of composition and structure, on the one hand, to properties. On the other hand, the task of materials engineer ing is to design, evaluate, and optimize potential applications of a (new) material. In the last four decades dramatic advances have demonstrated how far our understan…