amphipathic

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am·phi·path·ic

(am'fē-path'ik),
Denoting a molecule, such as comprises detergents or wetting agents, which contains groups with characteristically different properties, for example, both hydrophilic and hydrophobic properties.
Synonym(s): amphiphilic, amphiphobic
[amphi- + G. pathos, feeling]

amphipathic

[-path′ik]
Etymology: Gk, amphi both + pathos suffering
pertaining to a molecule having two sides with characteristically different properties, such as a detergent, which has both a polar (hydrophilic) end and a nonpolar (hydrophobic) end but is long enough so that each end demonstrates its own solubility characteristics.

amphipathic

Of a chemical structure having both hydrophobic and hydrophilic surfaces as in the case of the phospholipid molecules of the cell membrane. Some proteins have amphipathic regions.

amphipathic

a molecule containing both HYDROPHILIC and HYDROPHOBIC components, as in a phospholipid molecule. See FLUID-MOSAIC MODEL.

amphipathic

molecules containing both polar and non-polar regions in their structure.
References in periodicals archive ?
L'Alloret, Florence; Composition sous frome d'une emulsion huile-dans--eau contenant un polymere amphiphile, et ses utilisations notamment cosmetiques; French Patent App.
Building on the seminal results of Degussa and Michelin, several groups have shown that it is possible to compatabilize HIIR type elastomers and silica by using the same small molecule amphiphiles (e.
However, this amphiphile network is reinforced with silica, which limits the swelling capacity both in polar (water) and in nonpolar (chloroform) solvents: 0.
The study demonstrated a "superior" performance in each of these categories and concluded that "representatives of this maltose-neopentyl glycol amphiphile family show favorable behavior relative to conventional detergents, as manifested in multiple membrane protein systems leading to enhanced structural stability and successful crystallization" (Nature Methods, 2010).
Oil field Surfactants are amphiphiles that are used to lower surface tension between two liquids.
The researchers showed used neutron scattering techniques at the Institut Laue-Langevin (ILL) to investigate the arrangement of these clusters and showed that hydrophobic amphiphiles could still assemble into extended structures in much the same way as conventional amphiphiles.
Aim 1-Development of alkoxysilane-grafted polymeric amphiphiles.
All biosurfactants are amphiphiles, which consist of two parts--a polar (hydrophilic) moiety and nonpolar (hydrophobic) group [6].
Theory of Self-Assembly of Hydrocarbon Amphiphiles into Micelles and Bilayers," J.
The application chapters describe DNA-lipid amphiphiles for drug and gene therapy, polyelectrolyte intelligent gels, ionic polymer-metal composites for sensors and artificial muscles, photonic crystals, and charged membranes for desalination, fractionation, and energy conversion processes.
The matrix, based on self-assembling molecules known as peptide amphiphiles, biodegrades into nutrients and is replaced by natural cartilage.