In this study, a colorimetric discrimination of Pd2+ and Hg2+ ions in the solvent solid film states one silver nanoparticles (AgNPs) sensing system is presented. First, were prepared by reducing AgNO3 with sodium borohydride presence chitosan different organic acids, including acetic acid, propanedioic citric acid. The addition acids allowed for surface plasmon resonance (SPR) intensity size di...

Porous polymeric solid acids bearing hydroxyl and sulfonic acid groups, synthesized from aromatic monomers via the Friedel-Crafts “knitting” polymerization, could efficiently hydrolyze cellulose. • Bifunctional porous were for hydrolyzing polymerization followed by sulfonation was used to synthesize acids. Hydroxyl groups as cellulose-binding sites enhanced catalytic performance of acid. struct...

a simple and mild one-pot three-component reaction for the preparation 1,4-dihydropyridines has been developed from various aldehyde substrates, 1,3-dicarbonyl compounds (dimedone) and ammonium acetate (hantzsch method) in the presence of a catalytic amount of phospho sulfonic acid (psa) as an efficient and heterogeneous solid acid in etoh at room temperature. preparation of psa is straightforw...

The solid–liquid phase diagrams of two binary mixtures of saturated fatty acids, formed by caprylic acid (C8:0) + myristic acid (C14:0) and lauric acid (C12:0) + myristic acid (C14:0), were measured using high pressure microscopy in the range of 0.1–90 MPa. It is shown that unlike for other long chain alkyl compounds such as alkanes the phase diagrams are only slightly affected by the pressure,...

Short proteoglycan fragments are of great importance for biochemical research. The solid-phase synthesis such glycopeptides relies on excessive use glycosylated amino acids, extended reaction times, and additional post-assembly deprotection protocols. We employed high-shear mixing expedient equimolar O-glycopeptide assembly. further developed a stirring-based the solid support, thus completing ...

(1) The characteristics of the lipids (acetone-soluble lipid, lecithin, cephalin and sphingolipid) obtained from barracuda, Sphyraena pinguis GUNTHER, were studied from the view point of fat metabolism of fish. (2) Forty-one fresh sample fish caught in the Komekami fishing ground near Odawara City (west part of Kanagawa Prefecture, Japan) on the 4th of October, 1959, were extracted with acetone...

A simple and mild one-pot three-component reaction for the preparation 1,4-dihydropyridines has been developed from various aldehyde substrates, 1,3-dicarbonyl compounds (dimedone) and ammonium acetate (Hantzsch method) in the presence of a catalytic amount of phospho sulfonic acid (PSA) as an efficient and heterogeneous solid acid in EtOH at room temperature. Preparation of PSA is straightforw...

This study investigated the roles of rice mono- and diacylglycerol (rice MDG) and commercial MDG on solid structure formation of rice bran oil (RBO) and RBO-anhydrous milk fat (AMF) blends after the crystallized blends were aged at 5°C for 12 or 24 h and stored at 30°C for 12 or 24 h. The rice MDG was prepared using a pilot-scale molecular distillation (MD) unit to evaporate out the free fatty ...

A simple and reproducible method for altering the acyl chain composition of Chinese hamster ovary cell phospholipids is described. By supplementation of the medium with 5% delipidized serum and 12 pg/ml of various fatty acids, extensive incorporation of the added fatty acid into membrane phospholipids was obtained. No significant changes in the phospholipid head group composition or the sterol/...