PRODUCTS

aggregation of vesicles

aggregation of vesicles

aggregation of vesicles
Application

Selflimiting aggregation of phospholipid vesicles Soft In principle, if the amount of linker molecules per vesicle is close to unity, aggregation will be limit

aggregation of vesicles

  • Selflimiting aggregation of phospholipid vesicles Soft

    In principle, if the amount of linker molecules per vesicle is close to unity, aggregation will be limited and most of the vesicles will aggregate into stable vesicle pairs For this to happen, the interaction between the linker and the vesicles and the tendency to bridge vesicles need to be strongWatersoluble polymers such as dextran and polyethylene glycol are known to induce aggregation and size growth of phospholipid vesicles The present study addresses the dependence of these processes on vesicle size and concentration, polymer molecular weight, temperature, and compartmentalization of the vesicles and polymers, using static and dynamic light scatteringAggregation of phospholipid vesicles by watersoluble1996 11 1· Aggregation of large unilamellar vesicles required a lower polymer concentration, probably because aggregation occurs in a secondary minimum (without surface contact) In contrast to experiments in which the polymers were added directlyto the vesicles, dialysis ofthe vesicles against polymercontaining solutions did not induce aggregationAggregation of phospholipid vesicles by watersoluble

  • Aggregation of dipalmitoylphosphatidylcholine vesicles

    1982 8 17· A model of the interaction of small vesicles below the gelliquidcrystalline phase transition is presented in which aggregation precedes fusion and collision between aggregatesvesicles: (i) vesicles containing biotinylated lipids are coupled together with streptavidin, (ii) bridging attraction is exploited by adding cationic polymers (polylysine) to negatively charged vesicles, and (iii) temperature as a control parameter is used for the aggregation of vesicles mixed with a thermosensitive surfactantSelflimiting aggregation of phospholipid vesicles2010 2 21· In this manuscript, we focus on the reversible aggregation of small phosphatidylcholine single shell vesicles, in which close contact between bilayers leads to adhesion of the vesicles but not to fusion Aggregation of lipid vesicles composed of phosphatidylcholines, which have low negative surface charge densities, takes place more readily than vesicles of phosphatidylserines orLipid Vesicle Aggregation Induced by Cooling

  • Aggregation and fusion of phospholipid vesicles

    1983 1 1· Membrane fusion and aggregation of phospholipid vesicles are reviewed and discussed The fusion process is viewed as consisting of several stages: aggregation and close apposition of the particles, destabilization, and finally, merging of the bilayers2012 10 6· ABSTRACT Watersoluble polymers such as dextran and polyethylene glycol are knownto induce aggregation and size growth of phospholipid vesicles The present study addresses the dependence of these processes on vesicle size and concentration, polymermolecularweight, temperature, andcompartmentalization ofthevesicles andpolymers, using staticAggregation of phospholipid vesicles by watersoluble polymers2002 5 1· Beryllium Ion Can Induce the Aggregation of Phosphatidylcholine Vesicles Langmuir 1996, 12 (15) , 35743579 DOI: 101021/la Andrew S Luk, Eric W Kaler, and Sum P Lee Phospholipase Cinduced aggregation and fusion of cholesterollecithin small unilamellar vesicles Biochemistry 1993, 32 (27) , 69656973Aggregation of dipalmitoylphosphatidylcholine vesicles |

  • Highspeed centrifugation induces aggregation of

    Highspeed centrifugation induces aggregation of extracellular vesicles1996 11 1· Aggregation of large unilamellar vesicles required a lower polymer concentration, probably because aggregation occurs in a secondary minimum (without surface contact) In contrast to experiments in which the polymers were added directlyto the vesicles, dialysis ofthe vesicles against polymercontaining solutions did not induce aggregationAggregation of phospholipid vesicles by watersolubleAbstract Watersoluble polymers such as dextran and polyethylene glycol are known to induce aggregation and size growth of phospholipid vesicles The present study addresses the dependence of these processes on vesicle size and concentration, polymer molecular weight, temperature, and compartmentalization of the vesicles and polymers, using static and dynamic light scatteringAggregation of phospholipid vesicles by watersoluble

  • Aggregation of dipalmitoylphosphatidylcholine vesicles

    1982 8 17· Aggregation of dipalmitoylphosphatidylcholine vesicles Wong M, Thompson TE Quasielastic and 90 degrees light scattering were used to study the aggregation of dipalmitoylphosphatidylcholine vesicles at temperatures below the gelliquidcrystalline phase transition as a function of concentration, temperature, and size2002 5 1· Beryllium Ion Can Induce the Aggregation of Phosphatidylcholine Vesicles Langmuir 1996, 12 (15) , 35743579 DOI: 101021/la Andrew S Luk, Eric W Kaler, and Sum P Lee Phospholipase Cinduced aggregation and fusion of cholesterollecithin small unilamellar vesicles Biochemistry 1993, 32 (27) , 69656973Aggregation of dipalmitoylphosphatidylcholine1996 11 1· Watersoluble polymers such as dextran and polyethylene glycol are known to induce aggregation and size growth of phospholipid vesicles The present study addresses the dependence of these processes on vesicle size and concentration, polymer molecular weight, temperature, and compartmentalization of the vesicles and polymers, using static and dynamic light scatteringAggregation of phospholipid vesicles by watersoluble

  • Aggregation and fusion of phospholipid vesicles

    1983 1 1· Monovalent cations induce reversible aggregation of negatively charged vesicles, but they inhibit the fusion induced by divalent cations such as Ca 2+ or Mg 2+ Fusion of neutral phospholipid vesicles, and it occurs the cationinduced fusion of acidic phospholipid vesicles, and it occurs only at temperatures below the gel to liquid crystalline phase transition temperature Tc2012 10 6· Biophysical Journal Volume71 November1996 26022612 Aggregation of Phospholipid Vesicles byWaterSoluble Polymers D Meyuhas,* S Nir,# and D Lichtenberg* *Department of Physiology and Pharmacology, Sackler School of Medicine, Tel Aviv University, RamatAviv 69978, Israel, and #Seagram Centerfor Soil andWaterSciences, Faculty ofAgriculture, TheHebrewUniversityAggregation of phospholipid vesicles by watersoluble polymersIn addition, we discuss the mechanism of vesicle aggregation induced by oppositely charged biopolymers Our study complements previous reports about the formation of giant vesicle clusters and thus provides a general vista on primitive cell systems, based on the association of vesicles into compartmentalized aggregatesVesicle aggregates as a model for primitive cellular

  • Leakage and aggregation of phospholipid vesicles

    Finally, Bclx(L), an apoptotic antagonist in programmed cell death, can prevent the aggregation of LUVs induced by tBID, but not the release of entrapped trypsin It is postulated that two separate domains of tBID are responsible for inducing leakage and aggregation of phospholipid vesiclesMembrane fusion and aggregation of phospholipid vesicles are reviewed and discussed The fusion process is viewed as consisting of several stages: aggregation and close apposition of the particles, destabilization, and finally, merging of the bilayers A procedure is presented which yields both the rate constant of the dimerization (C <SUB>11</SUB>) and the rate constant for fusion of theAggregation and fusion of phospholipid vesicles Lipid vesicles are widely used as model systems to study biological membranes The selfassembly of such vesicles into vesicle pairs provides further opportunity to study interactions between membranes However, formation of vesicle pairs, whileSelflimiting aggregation of phospholipid vesicles Soft

  • Interaction and aggregation of lipid vesicles (DLVO

    1999 8 1· Such vesicle aggregation studies have been done by several workers , , and the order of ability of ions to induce vesicle aggregation have been found for vesicles of different types of lipids , , There exist various forces (electrostatic, van der Waals, hydration interactions, etc) in stability of lipid vesicle suspension1996 11 1· Watersoluble polymers such as dextran and polyethylene glycol are known to induce aggregation and size growth of phospholipid vesicles The present study addresses the dependence of these processes on vesicle size and concentration, polymer molecular weight, temperature, and compartmentalization of the vesicles and polymers, using static and dynamic light scatteringAggregation of phospholipid vesicles by watersoluble2012 10 6· Biophysical Journal Volume71 November1996 26022612 Aggregation of Phospholipid Vesicles byWaterSoluble Polymers D Meyuhas,* S Nir,# and D Lichtenberg* *Department of Physiology and Pharmacology, Sackler School of Medicine, Tel Aviv University, RamatAviv 69978, Israel, and #Seagram Centerfor Soil andWaterSciences, Faculty ofAgriculture, TheHebrewUniversityAggregation of phospholipid vesicles by watersoluble polymers

  • Selflimiting aggregation of phospholipid vesicles —

    Here, we report on three strategies that lead to stable finitesized aggregates of phospholipid vesicles: (i) vesicles containing biotinylated lipids are coupled together with streptavidin, (ii) bridging attraction is exploited by adding cationic polymers (polylysine) to negatively charged vesicles, and (iii) temperature as a control parameter is used for the aggregation of vesicles mixed withEffect of watersoluble polymers on the state of aggregation, vesicle size, and phase transformations in mixtures of phosphatidylcholine and sodium cholate By Dov Lichtenberg Osmotic and Curvature Stress Affect PEGInduced Fusion of Lipid Vesicles but Not Mixing of Their Lipids By Peter Frederik(PDF) Aggregation of phospholipid vesicles by waterAs a function of size, aggregation decreased slightly from small to 700 A diameter vesicles and increased considerably for 950 A diameter vesicles A model of the interaction of small vesicles below the gelliquidcrystalline phase transition is presented in which aggregation precedes fusion and collision between aggregates triggers fusionAggregation of dipalmitoylphosphatidylcholine

  • Highspeed centrifugation induces aggregation of extracellular vesicles

    2020 4 24· SHORT COMMUNICATION Highspeed centrifugation induces aggregation of extracellular vesicles Romain Linares1, Sisareuth Tan1,Ce´line Gounou1, Nicolas Arraud1 and Alain R Brisson1,2* 1Molecular Imaging and NanoBioTechnology, University of Bordeaux, Pessac, France; 2Institut Universitaire de France, Paris, France Plasma and other body fluids contain cellderived extracellular vesicles1979 10 1· Aggregation of Amphiphiles as Micelles or Vesicles in Aqueous Media R NAGARAJAN AND E RUCKENSTEIN State University of New York at Buffalo, Faculty of Engineering and Applied Sciences, Buffalo, New York, 14214 Received August 22, 1977; accepted February 16, 1979 The physical factors responsible for the aggregation of amphiphiles in aqueous media are examined andAggregation of amphiphiles as micelles or vesicles in2008 5 30· ¾Small aggregates Æmicelles ¾Thermodynamic equilibrium with larger structures ¾Vesicles or liposomes ¾Not a separate phase ¾Structure size does not play a role in the thermodynamic definit ion of a separate phase ¾Two and three phase systems can occur when ¾Monomers, micelles, and vesicles separate out in equilibriumAggregation of Amphiphilic Molecules Into Micelles, Bilayers, Vesicles