Abstract This work has been done in three steps. First, the preparation of acrylate monomers; they are [dimethyl-1,3-dioxoylan-4-yl-methylacrylate (sol-ketal acrylate) (SKA)], [4-acetylphenyl (APHA)], and [4-formyl-2-methoxyphenylacrylate (VA)]. All monomers were evaluated using 1 H, 13 C-NMR, FT-IR. In next step, two kinds polymers prepared. Two series copolymers terpolymers carried out via fr...

5,12-Dihydroindolo[3,2-a]carbazole is a polycyclic structure combining in its scaffold two carbazole moieties sharing fused aromatic ring. Since the pioneering works reported 2019 on this concerning substitution of carbazoles by similar functional groups, no recent investigation has been devoted to asymmetrize carbazoles. In work, series 13 compounds based 5,12-dihydroindolo[3,2-a]carbazole pre...

Binary mixtures of methanol (CH3OH) and carbon monoxide (CO) ices were irradiated at 10 K with energetic electrons to mimic the energy transfer processes that occur in the track of the trajectories of MeV cosmic-ray particles. The formation of glycolaldehyde (HCOCH2OH) was established through the appearance of new bands in the infrared spectrum at 1757, 1700, 1690, 1367, 1267, and 1067 cm . A s...

Phagocytic cells of many higher species express calcium mobilizing G protein-coupled receptors for bacterial N-formyl peptides which mediate chemotaxis, degranulation, and the respiratory burst. cDNA encoding an N-formyl peptide receptor (FPR) has been reported. We now report the isolation of a closely related cDNA, 2.6 kilobase pairs in length, which we have designated as the FPRL1 receptor cD...

Based on the experimental results that 3-formyl rifamycin SV acts as an uncoupler in vitro on rat liver mitochondria, the effect of some rifampicin derivatives on the K+ and H+ compartmentation of biological membranes was examined to obtain a chemiosmotic hypothesis for oxidative phosphorylation. The K+ release from mitochondria was remarkably stimulated by 3-formyl rifamycin SV in accordance w...

Neutrophil functions are initiated within seconds after stimulus addition in response to N-formyl chemotactic peptides and precede ligand-receptor internalization [ 1-51. We have biochemical evidence from subcellular fractionation studies [3, 61 and covalently labelling the receptor by means of a radioiodinated photoactivatable arylazido derivative of the hexapeptide CHO-Nle-Leu-Phe-Nle-Tyr-Lys...

Acaryochloris marina, a chlorophyll (Chl) d-dominated cyanobacterium, is a model organism for studying photosynthesis driven by far-red light using Chl d. Furthermore, studies on A. marina may provide insights into understanding how the oxygenic photosynthetic organisms adapt after the acquisition of new Chl. To solve the reaction mechanism of its unique photosynthesis, photosystem (PS) II comp...

Recent work has demonstrated that, for bimetallic Au–Pd systems, the rate of catalytic alcohol and formyl dehydrogenation (DH) is intrinsically linked to oxygen reduction (ORR) within same system.