Abstract
The shape of mechanically pierced giant vesicles is studied to obtain the elastic modulus of Gaussian curvature of egg lecithin bilayers. It is argued that such experiments are governed by an apparent modulus, kappa(app), not the true modulus of Gaussian curvature, kappa. A theory of kappa(app) is proposed, regarding the pierced bilayer vesicle as a closed monolayer vesicle. The quantity measured, i.e. kappa(app)/kappa, where kappa is the rigidity, agrees satisfactorily with the theory. We find kappa(app) = -(1.9 +/- 0.3) . 10(-12) erg (on the basis of kappa = (2.3 +/- 0.3) . 10(-12) erg). The result may have implications for bilayer fusion.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
