Results 31 to 40 of about 52,294 (289)

Spontaneous Expulsion of Giant Lipid Vesicles Induced by Laser Tweezers [PDF]

open access: yes, 1996
Irradiation of a giant unilamellar lipid bilayer vesicle with a focused laser spot leads to a tense pressurized state which persists indefinitely after laser shutoff.
Bar-Ziv, Roy   +3 more
core   +3 more sources

Heterogeneous vesicles in mucous epithelial cells of posterior esophagus of Chinese giant salamander (Andrias davidianus)

open access: yesEuropean Journal of Histochemistry, 2015
The Chinese giant salamander belongs to an old lineage of salamanders and endangered species. Many studies of breeding and disease regarding this amphibian had been implemented. However, the studies on the ultrastructure of this amphibian are rare.
H. Zhang   +6 more
doaj   +1 more source

Photomanipulation of Minimal Synthetic Cells: Area Increase, Softening, and Interleaflet Coupling of Membrane Models Doped with Azobenzene‐Lipid Photoswitches

open access: yesAdvanced Science, 2023
Light can effectively interrogate biological systems in a reversible and physiologically compatible manner with high spatiotemporal precision. Understanding the biophysics of photo‐induced processes in bio‐systems is crucial for achieving relevant ...
Mina Aleksanyan   +7 more
doaj   +1 more source

Imaging optical thicknesses and separation distances of phospholipid vesicles at solid surfaces [PDF]

open access: yes, 1992
We present the application of reflection interference contrast microscopy (RICM) (1) to map the optical density of supported bilayers and vesicles and (2) to image the contact profile of phospholipid vesicles at surfaces.
Rädler, Joachim O., Sackmann, E.
core   +3 more sources

TP53 R249S mutation in hepatic organoids captures the predisposing cancer risk

open access: yesHepatology, EarlyView., 2022
The systematic approach in elucidating the gain‐of‐function (GOF) roles of TP53 mutations in early liver carcinogenesis. Unique downstream targets of TP53 L3 mutations were identified from chormatin immunoprecipitation sequencing in HCC cell lines, followed by a series of validation assays to substantiate the exclusive transcriptional regulations ...
Yin Kau Lam   +10 more
wiley   +1 more source

Surfactant-free production of biomimetic giant unilamellar vesicles using PDMS-based microfluidics

open access: yesCommunications Chemistry, 2021
The production of giant unilamellar vesicles by microfluidics commonly involves additives, which may interfere with the resultant membrane properties. Here pure lipid GUVs are prepared which exclude residual surfactants and other additives.
Naresh Yandrapalli   +3 more
doaj   +1 more source

Active Membrane Fluctuations Studied by Micropipet Aspiration [PDF]

open access: yes, 2001
We present a detailed analysis of the micropipet experiments recently reported in J-B. Manneville et al., Phys. Rev. Lett. 82, 4356--4359 (1999), including a derivation of the expected behaviour of the membrane tension as a function of the areal strain ...
A. N. Radionov   +52 more
core   +2 more sources

Osmotic Shrinkage of Giant Egg-Lecithin Vesicles [PDF]

open access: yesBiophysical Journal, 1980
Osmotic shrinkage of giant egg-lecithin vesicles was observed by phase-contrast microscopy. The vesicles remained or became spherical when shrinking. Small and thick-walled vesicles formed visible fingers attached to the sphere. The water permeability of the single bilayer was found to be 41 micrometers/s.
Boroske, E.   +2 more
openaire   +3 more sources

Oscillatory phase separation in giant lipid vesicles induced by transmembrane osmotic differentials

open access: yeseLife, 2014
Giant lipid vesicles are closed compartments consisting of semi-permeable shells, which isolate femto- to pico-liter quantities of aqueous core from the bulk.
Kamila Oglęcka   +4 more
doaj   +1 more source

Thermal fluctuations of the lipid membrane determine particle uptake into Giant Unilamellar Vesicles

open access: yesNature Communications, 2023
Particulates, bacteria and viruses wrap into cell membranes. Here the authors use optical tweezers, particle tracking and mathematical modelling to show that the uptake process into giant vesicles is influenced by thermal membrane fluctuations.
Yareni A. Ayala   +3 more
doaj   +1 more source

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