Liphophilicity

Liphophilic Group—Amide—Bridging group—Hydrophilic Group (if Any) ... 

Water-insoluble, Re-immobilized Liphophilic Ligands and Their Separation by Membrane Technique... 

The extracts of biological samples usually contain high concentration of lipids which must be removed before the analysis. Particularly if GC is used in the analysis, efficient removal of lipids is crucial. As the concentrations of many liphophilic FRs are related to the amount of lipids, the lipid content is often measured gravimetrically prior to the cleanup, or determined separately by a total lipid determination. Lipids can be removed by destructive or nondestructive methods. For serum or plasma samples, the lipid determination can be conveniently done on separate aliquots by enzymatic tests. 

Fig. 15.3 Synthetic analogues of Glu. Several tactics were used for conformational restriction the introduction of liphophilic groups for reducing the flexibility and of cycles for limiting the rotatable bounds.

Alternative and more complex surfactants continue to be explored as a resourceful option for MEKC separations. In situ generated micelles, which are anionic complexes formed by alkyl-or steroidal-glycoside surfactants and borate ions, the use of sodium 10-undecylenate (SUA) and sodium 10-undecylsulfate (SUS) oligomers as well as surfactants composed of two ionic groups and two liphophilic chains, such as sodium 5,12-h (dodecyloxymethyl)-4,7,10,13-(tetraoxa)-1,16-hexadecanedisulfonate (DBTD), bilayered aggregates such as vesicles and liposomes, and bilayer micelles are a few examples. 

Adducts between POMs and hydrosoluble polyelectrol54es have been formed through ionic exchange, by mixing a polymer matrix of positively charged, cross-hnked polyethylenamine (PEA) and a suitable POM. A hybrid material with enhanced affinity for liphophilic substrates, such as for secondary alcohol has thus been obtained. ... 

Chromoplasts from the daffodil flower (Narcissus pseudonarcissus) are well suited for in vitro investigations on the biosynthesis of tetraterpenoid carotenes. Soluble enzymes of the chromoplast stroma convert the hydrophilic substrate isopen-tenyl diphosphate (IPP) to the liphophilic and membrane associated phytoene, further carotenes are then formed by integrate membrane enzymes (Beyer et al. 1980). 

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