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Collapse of giant phosphatidylcholine vesicles

โœ Scribed by M. Kummrow; W. Helfrich


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
526 KB
Volume
79
Category
Article
ISSN
0009-3084

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โœฆ Synopsis


The collapse of giant phosphatidylcholine vesicles was recorded by video microscopy. The vesicle membranes transform into small particles which seem to represent a multiply self-connected bilayer, possibly a cubic phase. We estimate the lipid density of the black (or bright) particles and the lateral tension rupturing the vesicle bilayers.


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Laser light scattering has been used to investigate the thermal pretransition of dipalmitoylglycerophosphocholine vesicles with variable radius as obtained by the mild sonication method. Intensity changes in 90 ยฐ scattered light are observed at the pretransition for larger vesicles and actually incr