Ultrafine FePt nanoparticles have been synthesized via a novel chemical solution synthesis route. Without using a reducing agent, the stoichiometric FePt nanoparticles were produced by the decomposition of iron acetylacetonate and platinum acetylacetonate in octyl ether in the presence of oleic acid and oleyl amine as the surfactants. The particle size was found to be around 2 nm with a narrow ...

A membrane-bound oleyl coenzyme A desaturase from maturing Carthumus tinctorius seeds specifically catalyzed the conversion of oleyl-CoA to linoleyl-CoA. Any modification of the substrate, that is, a trans double bond, a shift in the position of the cis double bond, chain length, and the substitution of acyl carrier protein for CoA as the thioester moiety resulted in complete loss of activity. ...

A chiral amino acid-based monomeric and polymeric surfactant, sodium oleyl-L-leucylvalinate) (L-SOLV) and poly(sodium oleyl-L-leucylvalinate) (poly-L-SOLV) were synthesized and used for chiral separations in micellar electrokinetic chromatography (MEKC). Poly-L-SOLV was used successfully in the separation of various enantiomers of neutral, acidic, and basic analytes such as 1,1'-bi-2-napthol, 1...

There are specific phorbol ester receptors on cardiac myocytes which may be identical with the calcium/phospholipid-dependent protein kinase (protein kinase C). Incubation of enzymatically dissociated rat cardiac myocytes with biologically active phorbol esters (such as 40phorbol-12,13-dibutyrate and 12-O-tetradecanoyl phorbol13-acetate) leads to a timeand concentration-dependent loss of jS-adr...

Recovery of metabolites from fermentation broth by solvent extraction can be used to optimize fermentation processes. End-product reutilization, low product concentration and large volumes of fermentation broth and the requirements for large bioreactors, in addition to the high cost largely contributed to the decline in fermentative 2,3-butanediol production. Extraction can successfully be ...

A highly specific and rapid assay for hormone-sensitive lipase activity of rat adipose tissue is described. The method employs emulsified 2,3-di-O-oleyl-[9,10-(3)H(2)]oleoyl glycerol as a substrate; it is very sensitive and is suitable for serial sampling.

The substrate specificity of 1-acylglycerol 3-phosphate acyltransferase from rat liver microsomes for both acylcoenzyme A and I-acylglycerol 3-phosphate has been determined at levels below the critical micelle concentrations of the substrates. The fatty acid of the acylglycerol 3-phosphate is not important, but for the acyl-CoAs the specificity is oleyl > palmitoleyl N linoleyl N palmityl > myr...