The flocculation tests currently used for the serodiagnosis of syphilis involve the use of an aqueous emulsion of cholesterol, beef heart lecithin, and cardiolipin which undergoes aggregation when treated with Wassermann antibody (1). The r81e of cholesterol in ihis reaction has been depicted as providing a particulate surface which enhances the visibility of the aggregates formed by the antige...

The first long-term double-blind placebo controlled trial of high dose lecithin in senile dementia of the Alzheimer type is reported. Fifty one subjects were given 20-25 g/day of purified soya lecithin (containing 90% phosphatidyl plus lysophosphatidyl choline) for six months and followed up for at least a further six months. Plasma choline levels were monitored throughout the treatment period....

We sought to determine if lecithin would produce a dose-response effect, increasing carotenoid bioaccessibility and Caco-2 cell uptake. A mixture of β-carotene, lycopene, lutein zeaxanthin was digested with concentrations (0–10 mg lecithin/mL test meal) ∼4% vegetable oil (n = 6 per condition). In vitro gastric, duodenal, jejunal digestion mimicked for 1 h each, the micellar fraction isolated an...

Two new truxene-based 3-dimensional (3-D) molecules self-assembled in cyclohexane to give organogels with vesicular and fibrillar nano-morphologies governed by the substitution pattern of the peripheral alkyl amido side-chains grafted onto the rigid 3-D core.

A channel-type assembly of gamma-cyclodextrin (gamma-CD(channel)) forms organogels in a variety of oils and organic solvents at ambient temperature through the construction of a three-dimensional network of micrometer-sized cubic particles composed of gamma-CD(channel).

A monofunctionalised pillar[5]arene derivative carrying a viologen side chain which exhibits self-complexation in dilute dichloromethane solutions forms supramolecular daisy chain polymers and eventually organogels as its concentration is increased three-fold over the range from 0.1 to 100 mM.

A convenient route to organogels templated by high internal phase emulsions has been developed. Key is the use of a waterborne polymer latex loaded with a multiple hydrogen bond (MHB) functionality that becomes disentangled and transfers across the oil-water interface forming a gel network in the oil phase via hydrogen bond interactions.

The objective of this study was to specify the effects of centrifugation and different surface of soybean lecithin-based extender on post-thaw Sperm quality of Ghezel ram semen. Semen samples were gathered from 5 mature Ghezel ram two/week for 3 weeks. After initial evaluation, the approved semen samples were pooled together and split into equal parts in Falcon tubes. Three samples were combine...

Although the serodiagnosis of syphilis by various tests has been carried out routinely for many years, our knowledge concerning the chemical nature of the specific antibody and antigen is still too limited to allow a satisfactory interpretation of the serological reactions involved. Valuable contributions towards the elucidation of the structure of several constituents of the antigen have been ...