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Showing 1 to 8 of 8 for “"Laurdan"”.
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The Influence of Membrane Lipid Order on Cell Shape and Microvesiculation in Human Erythrocytes
… with an environment-sensitive probe, laurdan. Our observations led us to the following conclusions: 1) the modest temperature dependence of membrane structure observed with laurdan is shifted to lower temperatures and becomes more cooperative upon removal of membrane cholesterol, 2) …
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Spatial correlation of lipid phase fluctuations in model membranes studied with two-photon fluorescence microscopy
… and labeled with the environment sensitive dye LAURDAN whose spectral properties are sensitive to the lipid phase. The Generalized Polarization (GP) function was used to quantify the lipid phase state as detected by LAURDAN. Long lived micron sized structures were detected on membranes composed …
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Liposomen als Modelle zur Messung von Wirkstoff/Membran-Wechselwirkungen
… gelegt. <br> <br>Der Fluoreszenzfarbstoff Laurdan ist aufgrund seiner besonderen chemischen Struktur in der Lage, in Abhängigkeit von der Umgebungspolarität, nach Lichtabsorption zwei verschiedene Anregungszustände auszubilden. Diese beiden Zustände unterscheiden sich durch die Lage und …
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Mechanisms by Which Apoptotic Membranes Become Susceptible to Secretory Phospholipase A2
… suggesting increased lipid spacing. Second, laurdan detected increased solvation of the lower head group region of the membrane. Third, the rate at which fluorescent lipids could be removed from the membrane by albumin was enhanced, implying greater vertical mobility of phospholipids. Thus, …
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Interactions of Inorganic Mercury and Inorganic Cadmium with Biomimetic and Complex Biological Membranes and their Influence on Membrane Packing and Size
… polar extract membranes was investigated using Laurdan Generalized Polarization (GP) and Dynamic Light Scattering (DLS). Hg2+ and Cd2+ electrostatically target and induce rigidity in membranes containing cationic and anionic lipids respectively. Hg2+ also imparts rigidity by acting as a catalyst …
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Vliv iontové síly na vlastnosti iontových amfifilních párů
… Generalizovanou polarizací s využitím sondy Laurdan (6-dodekanoyl-2-(dimethylamino)naftalen) byl pozorován hydratační obal vezikul. Bylo zjištěno, že při použití nízké iontové síly (0,5 až 2,0 mM) klesá velikost vezikul a při použití vysoké iontové síly (50,0 až 300,0 mM) velikost roste. …
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Investigations of the Role of Triglycerides in Synthetic Colloidal Systems
… analysis of the fluorescence behavior of Laurdan to investigate PL membrane phase. Ternary systems of ordering PLs, disordering PLs, and cholesterol exhibit complex lateral phase behavior; as a function of composition, these systems can exhibit three distinct phases, as well as lateral …
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Propiedades biofísicas de esfingomielinas y ceramidas con ácidos grasos poliinsaturados de muy larga cadena
… tanto la polarización generalizada (GP) del Laurdan como la anisotropía de fluorescencia (r) del DPH mostraron que la mayoría de las n-V SM y h-V SM compartieron la característica de tener temperaturas de transición (Tt) muy bajas, por debajo de 5 °C, salvo n-32:5 SM y h-32:5 SM, cuyas Tt …