K
Karin Winkler
Publications - 7
Citations - 211
Karin Winkler is an academic researcher. The author has contributed to research in topics: Vesicle & Drop (liquid). The author has an hindex of 5, co-authored 7 publications receiving 195 citations.
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Solubility studies of oleanolic acid and betulinic acid in aqueous solutions and plant extracts of Viscum album L
TL;DR: The triterpene acid content of neutral plant extracts above the solubility limit could be due to interactions with biocolloids, and different mechanisms of the dissolution at pH 7.3 and pH 10.2 are discussed.
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Membrane interactions of ternary phospholipid/cholesterol bilayers and encapsulation efficiencies of a RIP II protein
Verica Manojlovic,Karin Winkler,V. Bunjes,A. Neub,Rolf Schubert,Branko Bugarski,Gero Leneweit +6 more
TL;DR: It is speculated that the flattening of the vesicles is a consequence of lipid phase separation and the formation of condensed complexes and areas of different bending elasticities, becoming more pronounced with the increase in the relative amount of saturated fatty acids.
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Surface rheology of monolayers of phospholipids and cholesterol measured with axisymmetric drop shape analysis
TL;DR: In this paper, a profile analysis tensiometry (PAT) is used to determine the film pressure Π, surface elasticity and surface dilational viscosity of monolayers upon sinusoidal oscillations of the drop surface for various amplitudes a and frequencies f to assess their dependence on these dynamic parameters.
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Surface rheology and phase transitions of monolayers of phospholipid/cholesterol mixtures.
TL;DR: The dynamic surface elasticity and the surface dilational viscosity of three binary phospholipid/cholesterol mixtures were determined with axisymmetric drop shape analysis on a harmonically oscillating pendent drop to explore the rheological properties and phase transitions of mixtures of saturated and unsaturated phospholips with cholesterol.
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Characterization of membrane vesicles in plant extracts
TL;DR: Vesicles in aqueous mistletoe extracts (extracts of Viscum album L.) were analyzed by cryo-transmission electron microscopy (cryo-TEM) without fixation, and for the first time, it was possible to analyze unfixed vesicle in the Mistletoe extract.