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 ?
Individually, the five MAC components circulate in blood as hydrophilic proteins, but when combined they form an amphiphilic complex capable of intercalating into cell membranes.
Ibrahim, K, Salminen, A, Holappa, S, Kataja, K, Lampinen, H, Lofgren, B, Laine, J, "Preparation and Characterization of PS-PEO Amphiphilic Block Copolymers Via Atom Transfer Radical Polymerization.
Other topics include a novel concept for stabilizing small inorganic nanoparticles, compounds containing siloxane as polymer stabilizers, amphiphilic block copolymers as potent efflux pump inhibitors for drug delivery and cancer therapy, current developments in double hydrophilic block copolymers, and hindered amine stabilizers as sources of markers of the heterogeneous photo-oxidation and photo-stabilization of carbon chain polymers.
COMPARISON OF SOLUTION AND BIOLOGICAL PROPERTIES OF AMINO AND GUANIDINO AMPHIPHILIC CATIONINC POLYMERS ** Michelle J.
Therefore, a--irradiation, in this study, was also tried to perform simultaneous graft copolymerization of the three aforementioned later hydrophilic monomers in combination with the hydrophobic monomer diethyleneglycol dimethacrylate in order to obtain the corresponding graft copolymers that acquire amphiphilic properties for the Teflon membrane surface, particularly, and study influence of these modified microenvironment on the catalytic activity of the immobilized enzyme under non-isothermal conditions.
While other studies on amphiphilic pthalocyanines found to be potent against HepG2 cancer cells (Lo, et al.
Ecole Polytechnique Federale de Lausanne (Lausanne, Switzerland) has patented methods and apparatus for coating surfaces with specially designed thioethers and amphiphilic thioethers that reduce protein adsorption and/or cell adhesion.
Amphiphilic compounds, such as lipids, soaps, and other surfactants, play an important role in numerous areas, from the biology of living cells to food products.
Sun, "Controllable Morphology Formation of Gold Nano--and Micro-Plates in Amphiphilic Block Copolymer-Based Liquid Crystalline Phase," Chem.
Moreover, liquid-filled capsules offer controlled release based on lipophilic or amphiphilic components such as lecithin, beeswax, glycerol monostearate, soybean or castor oil.
Tokyo, Japan, July 25, 2006 - (JCN) - A research team at the National Institute of Advanced Industrial Science and Technology (AIST) has developed a technology to synthesize amphiphilic molecules into various types of white organic nano tubes with inner diameters of 40-200nm, outer diameters of 70-500nm, and lengths of several micrometers.
First tests in radiation-curing and somewhat polar solvent-based coatings indicate that the siloxane-based multifunctional surfactant acts as an amphiphilic surfactant in these formulations as well.