Examples of 'polar head' in a sentence
Meaning of "polar head"
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polar head
Nonpolar lipids without polar head groups.
The polar head comprises a metal salt of a surfactant.
Ao is the optimum área of the polar head group.
The polar head group composition was also affected by growth temperature.
A detergent comprises a polar head with a long hydrophobic tail.
The polar head interactions are now explicitly taken into account.
They generally comprise a polar head with a long hydrophobic tail.
A polar head group links a lipid to a branched polymer vía a covalent bond.
The sphingolipids also include a polar head but no glycerol group.
Soap molecule has a long nonpolar tail and a short polar head.
The phosphate group and polar head region of the molecule are hydrophilic.
Electrotransport enhancers having a hydrophobic tail and a polar head are described.
The polar head makes it possible to ensure solubility in the alkaline aqueous phase.
Surfactants are usually composed of a hydrocarbon chain and a polar head group.
The polar head group of this preferred polymeric surfactant antifoaming agent comprises an acid grouping.
See also
But the diversification of the structures is effected also by modification of the polar head.
Each glycerophospholipid molecule consists of a small polar head group and two long hydrophobic chains.
Synthesis in prokaryotes involves the synthesis of glycerophospholipids phosphatidic acid and polar head groups.
The phospholipid molecule 's polar head group contains a phosphate group.
The dicarboxylic group is subsequently reacted with a polyamine to form the polar head group.
Often, an amphiphilic compound has a polar head attached to a long hydrophobic tail.
The polar inorganic group includes groups such as a sulphur or phosphorus acidic polar head group.
Preferably, the large polar head group contains a hydrophilic repeating unit.
Structural analysis suggests that trehalose fits well between the polar head groups in lipid bylayers.
As a polar head group, phosphatidylethanolamine creates a more viscous lipid membrane compared to phosphatidylcholine.
Component B is a molecule having one long hydrocarbon chain and a polar head group.
These additives also have a polar head and an oil-soluble tail structure.
The invention relates advantageously to polymerised micelles whose polar head Z is functionalised.
In addition, it contains one polar head group, which is either phosphocholine, phosphochorylcholine or phosphoethanolamine.
Component B Component B is a molecule having one long hydrocarbon chain and a polar head group.
The phospholipid of claim 5, wherein the polar head group includes a phosphate group.
These analyses reveal a maximum degree of polymerization of 2 for the polar head.
The surface área occupied by each polar head of ss-LONs may be quite large.
Organic friction modifiers have long, soluble chains and a polar head.
The anionics consist of a negatively charged polar head bonded to a non-polar tail.
Polar lipids have polar head groups and exhibit surface activity, such as phospholipids and glycolipids.
Most commonly, surfactants are classified according to polar head group.
The phospholipid of claim 3, wherein the polar head group includes a lower alkyl phosphate ester.
The cyclic nitrogen - containing structure may be quaternized to form a polar head group.
The phospholipid component b comprises a phospholipid having polar head groups consisting of essentially 100 % phosphatidyl ethanolamine ;.
They differ in size, shape and the electric charge of their polar head groups.
Polar head groups comprising at least 90 % phosphatidyl choline, and.
B is a molecule having one long chain and a polar head group ; and.
Polar head groups comprising more than 50 % phosphatidyl ethanolamine, and.
Like phospholipids, these fatty acid derivatives have a polar head and nonpolar tails.
The second outer layer can include any surfactant having a non-polar tail and a polar head.
The phospholipid may have a negatively charged polar head group, such as a phosphate group.
The vesicle-forming lipids preferably have two hydrocarbon chains, typically acyl chains, and a polar head group.
The phospholipid of claim 1 or 2, wherein the polar head group has a neutral charge.
Another object of the invention relates to a compound whose polar head is of formula ( I ),.
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