lipid bilayer

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lipid bilayer

[¦lip·id ′bī‚lā·ər]
(cell and molecular biology)
The foundational structure of plasma membranes; it is composed of two layers of phospholipids positioned such that their polar hydrophilic heads face outward and their nonpolar hydrophobic tails are directed inward, blocking entry of water and water-soluble material into the cell.
References in periodicals archive ?
However, the liposomes labeled using this technique were found to be unstable in vivo, similarly to the procedure which utilizes diethylenetriamine-penta-acetic acid (DTPA) either as encapsulated into the aqueous core of the liposomes or as conjugated to the surface of the phospholipid bilayer [16-18].
To properly describe each of these dynamics and analyze the effect of temperature on the conformational motions of lipid bilayers, the same microscopic model proposed to describe the hydrogen dynamics for the liquid phase of phospholipid bilayers was considered.
Despite the fact that MIP values are useful for assessing potent interactions of bioactive peptides with biomembranes, one cannot directly refer them to penetration into phospholipid bilayers or bacteria membranes--the more advanced biomembrane model than a phospholipid monolayer.
They are large organelles that are surrounded by two phospholipid bilayer membranes.
Channels formed in phospholipid bilayer membranes by diphtheria, tetanus, botulinum and anthrax toxin.
Unlike most inorganic heavy metals, methylmercury is lipophilic and may permeate cells directly through the phospholipid bilayer or as a cysteine complex and exert intracellular effects in addition to blocking the channel pore.
Life's structural unit is a phospholipid bilayer with embedded proteins surrounding an enzyme-rich (protein) cytoplasm and amino acid containing DNA molecule(s).
Interactions between neutral phospholipid bilayer membranes.
Curvature effect on the structure of phospholipid bilayers. Langmuir 2007; 23: 1292-1299, doi: 10.1021/ la062455t.
In highly hydrated phospholipid bilayers, this band splits in two overlapping components: a high wavenumber band around 1742 [cm.sup.-1] of the non-hydrogen-bonded C=O groups and a low wavenumber band around 1728 [cm.sup.-1] due to the hydrogen bonding of the C=O groups [39].