2003
DOI: 10.1021/la026251y
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Mechanics of Streptavidin-Coated Giant Lipid Bilayer Vesicles:  A Micropipet Study

Abstract: To understand the effects of a crystalline protein layer on bilayer properties, we studied the mechanical properties of avidin-and streptavidin-coated giant lipid bilayer vesicles. The giant vesicles (20-60 µm) are made from a mixture of SOPC and biotinylated phospholipids via electroformation. Using micropipet manipulation, we showed that the presence of a monomolecular layer of noncrystalline avidin on the vesicle surface increases the membrane bending rigidity but does not significantly alter the elastic ar… Show more

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Cited by 47 publications
(68 citation statements)
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“…Also, systems such as gelled lipids on air bubbles 8 and protein-coated vesicles 9 show plasticity. We propose that a generic interfacial jamming transition may explain the mechanical properties and structural stability of these diverse systems.…”
mentioning
confidence: 99%
“…Also, systems such as gelled lipids on air bubbles 8 and protein-coated vesicles 9 show plasticity. We propose that a generic interfacial jamming transition may explain the mechanical properties and structural stability of these diverse systems.…”
mentioning
confidence: 99%
“…A liquid interface coated with adsorbed particles starts to exhibit elastic properties typical for a two-dimensional solid or elastic membrane, such as resistance to shear, buckling, wrinkling and crumpling [14,15]. This has also been reported for protein-coated bubbles [16], droplets [17] or vesicles [18].…”
Section: Introductionmentioning
confidence: 66%
“…This technique is mainly used for biological capsules (Chien, Sung, Skalak, Usami, & Tözeren, 1978;Evans & Yeung, 1989;Hochmuch, 2000;Jones et al, 1999;Kim, Wong, Park, Levchenko, & Sun, 2009;Rand & Burton, 1964;Sato, Theret, Wheeler, Ohshima, & Nerem, 1990;Shao & Hochmuth, 1996) with low mechanical strengths, and semi-permeable artificial microcapsules (Campillo, Pépin-Donat, & Viallat, 2007;Dieluweit et al, 2010;Jay & Edwards, 1968;Mabrouk et al, 2009;Ratanabanangkoon, Gropper, Merkel, Sackmann, & Gast, 2003;Rawicz, Olbrich, McIntosh, Needham, & Evans, 2000). It involves deformation opposite to that caused by micromanipulation and AFM, whereby the microcapsule is extended into the micropipette via suction rather than being compressed by a probe.…”
Section: Individual Particle Measurementsmentioning
confidence: 99%