نتایج جستجو برای: lecithin organogels

تعداد نتایج: 3682  

Journal: :Organic letters 2013
Chia-Chen Tsai Ying-Tsai Cheng Li-Ching Shen Kai-Chi Chang I-Ting Ho Jean-Ho Chu Wen-Sheng Chung

A biscalixarene framework, without long alkyl chains, has been readily synthesized in three steps starting from the parent calix[4]arene. The biscalix[4]arene 1 was able to form organogels in various alcoholic solvents; furthermore, it exhibited an excellent phase selective gelation property that is potentially useful in oil spill recovery.

Journal: :Journal of lipid research 1996
D Q Wang M C Carey

Using complementary physical-chemical techniques we defined five different crystallization pathways as functions of time (30 days) and increasing lecithin (egg yolk) content in pathophysiologically relevant model biles super-saturated (cholesterol saturation indices, 1.2 - 2.7) by dilution of approximately equal to 29 g/dl bile salt-lecithin-cholesterol micellar solutions. As evidenced by quasi...

Journal: :The Journal of Experimental Medicine 1957
Joseph C. Turner

Lipide extracts of the red cells of several animal species have been analyzed chromatographically. Genetically determined differences in phospholipide composition were found. Lecithin is absent from the cells of ox, sheep, and goat. Cells containing lecithin are susceptible to the direct hemolysin of cobra venom while cells not containing lecithin are resistant. The facts indicate that the dire...

Journal: :Journal of lipid research 1993
D W Hay M J Cahalane N Timofeyeva M C Carey

Using a precise high performance liquid chromatography (HPLC) technique, we identified the molecular species of lecithins in gallbladder biles from patients with cholesterol gallstones (n = 29), pigment gallstones (n = 9), morbid obesity (n = 5), and "controls" (n = 10). The major lecithin species identified in all groups, in descending rank order as represented by the fatty acids in the sn-1 a...

Journal: :Journal of Materials Chemistry C 2023

Circularly polarized luminescent chiral organogels based on fluorescence resonance energy transfer are fabricated by supramolecular co-assembly in an achiral polymer system, which a wavelength shift and amplified g lum achieved.

Journal: :Clinical chemistry 1974
A F Rosenthal M G Vargas S V Schiff

With use of the same amniotic fluid specimens, lecithin concentration was compared with nonchromatographically determined glycerophospholipid, total lipid phosphorus, and the bubble-stability test as indexes of fetal lung maturation. The lecithin analysis was performed by thin-layer chromatography, with use of a semiautomated method of spotting and nondigestive release of phosphorus from the se...

Journal: :Chinese Journal of Organic Chemistry 2013

2003
T. H. Jukes

It has been recognized for some years that lecithin is an internally neutralized compound (1). The neutralization takes place between a strongly acidic group and a strongly basic group. Solutions of lecithin therefore may be expected to show no buffering power within the physiological range and this has been observed to be the case (24). The internal neutralization of lecithin has led to the pr...

2001
Hannah Hoag

training, a young Serge Gauthier found himself up to his elbows in lecithin. His sleeves rolled up and his arms buried deep in big barrels of imported lecithin, he and his mentor, Dr. Pierre Etienne, scooped up kilos and kilos of the phospholipid like market merchants and handed it over to the families of patients with Alzheimer’s disease (AD). The two researchers hoped that with regular lecith...

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