Results 301 to 310 of about 679,023 (353)
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Theory for vesicle—vesicle and vesicle-plasmalemma interactions
Journal of Colloid and Interface Science, 1982A theory for predicting the approach velocity of a vesicle diffusing toward another vesicle or plasmalemma membrane is presented. This theory takes account of the shift between retarded and nonretarded van der Waals forces of attraction, the electrostatic forces of repulsion, and a spatially varying diffusion coefficient that considers the changing ...
Leslie Arminski +2 more
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Science, 2002
Vesicles are microscopic sacs that enclose a volume with a molecularly thin membrane. The membranes are generally self-directed assemblies of amphiphilic molecules with a dual hydrophilic-hydrophobic character. Biological amphiphiles form vesicles central to cell function and are principally lipids of molecular weight less than 1 kilodalton.
Dennis E, Discher, Adi, Eisenberg
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Vesicles are microscopic sacs that enclose a volume with a molecularly thin membrane. The membranes are generally self-directed assemblies of amphiphilic molecules with a dual hydrophilic-hydrophobic character. Biological amphiphiles form vesicles central to cell function and are principally lipids of molecular weight less than 1 kilodalton.
Dennis E, Discher, Adi, Eisenberg
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The Effect of Receptor Clustering on Vesicle−Vesicle Adhesion
Journal of the American Chemical Society, 2006As part of our studies into how the localization of cell adhesion molecules into lipid rafts may affect cell adhesion, we developed Cu(1), a synthetic copper(iminodiacetate)-capped receptor able to phase separate from fluid phospholipid bilayers. The extent to which Cu(1) clustered into adhesive patches on the surface of vesicles could be controlled by
Mart, Robert J. +3 more
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Langmuir, 2005
Stable vesicles are formed in a 1.4 wt % solution comprising a 1:3 mixture of the anionic photodestructible surfactant sodium 4-hexylphenylazosulfonate (C6PAS) and inert cationic cetyltrimethylamonium bromide (CTAB). UV irradiation drives an irreversible breakdown of the mixed C6PAS/CATB vesicles, owing to the selective degradation of C6PAS.
Eastoe, JG +6 more
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Stable vesicles are formed in a 1.4 wt % solution comprising a 1:3 mixture of the anionic photodestructible surfactant sodium 4-hexylphenylazosulfonate (C6PAS) and inert cationic cetyltrimethylamonium bromide (CTAB). UV irradiation drives an irreversible breakdown of the mixed C6PAS/CATB vesicles, owing to the selective degradation of C6PAS.
Eastoe, JG +6 more
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Journal of the American Chemical Society, 2009
A vesicle system is described that possesses a pH-induced "breathing" feature and consists of a three-layered wall structure. The "breathing" feature consists of a highly reversible vesicle volume change by a factor of ca. 7, accompanied by diffusion of species into and out of the vesicles with a relaxation time of ca. 1 min.
Shaoyong, Yu +3 more
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A vesicle system is described that possesses a pH-induced "breathing" feature and consists of a three-layered wall structure. The "breathing" feature consists of a highly reversible vesicle volume change by a factor of ca. 7, accompanied by diffusion of species into and out of the vesicles with a relaxation time of ca. 1 min.
Shaoyong, Yu +3 more
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Journal of Drug Targeting, 1994
Stable fluorinated vesicles--i.e. vesicles with a hydrophobic and lipophobic fluorinated film within their bilayer membranes--have been obtained from a variety of neutral, zwitterionic or anionic fluorinated amphiphiles, including single chain phosphocholine derivatives, double-chain phospholipids, glycolipids and glycophospholipids, as well as from ...
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Stable fluorinated vesicles--i.e. vesicles with a hydrophobic and lipophobic fluorinated film within their bilayer membranes--have been obtained from a variety of neutral, zwitterionic or anionic fluorinated amphiphiles, including single chain phosphocholine derivatives, double-chain phospholipids, glycolipids and glycophospholipids, as well as from ...
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Large vesicle contamination in small, unilamellar vesicles
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1980Small, unilamellar phospholipid vesicles have been prepared using a new, high-powdered cup sonifier that avoids contact of the sample with a titanium probe. These vesicles have been characterized by gel filtration chromatography both before and after fractionation by high-speed centrifugation.
D A, Barrow, B R, Lentz
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On synaptic vesicles, complex vesicles and dense projections
Brain Research, 1970Observations support the view that in vertebrates synaptic vesicles are produced by liberation from complex vesicles, which in turn are derived from the membranes of the presynaptic bag. Some of the shell fragments of the complex vesicles remain in the bag, whereas other fragments of the shell adhere to the wall of the synaptic vesicle. It is suggested
E G, Gray, R A, Willis
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Vesicle-vesicle interactions in sonicated dispersions of dipalmitoylphosphatidylcholine
Biochemistry, 1981The time course of the size transformation of sonicated small unilamellar dipalmitoylphosphatidylcholine vesicles at 23 degrees C has been followed with (31)P and (1)H nuclear magnetic resonance (NMR) spectroscopy. Comparison of these results with turbidity measurements indicates that vesicle aggregation, monitored by turbidity, and size transformation,
C F, Schmidt +2 more
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2004
The ability of certain lipids to self-assemble in water as bilayers is crucial for the properties of the outer membrane of biological cells and many of their internal structures as well (Golgi apparatus, endosomes, lysosomes, ...). Usually we call a vesicle such a bilayer membrane forming a closed shape with both an inner and an outer aqueous ...
Cabuil, Valérie +3 more
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The ability of certain lipids to self-assemble in water as bilayers is crucial for the properties of the outer membrane of biological cells and many of their internal structures as well (Golgi apparatus, endosomes, lysosomes, ...). Usually we call a vesicle such a bilayer membrane forming a closed shape with both an inner and an outer aqueous ...
Cabuil, Valérie +3 more
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