contributor author | D. C. Pamplona | |
contributor author | C. R. Calladine | |
date accessioned | 2017-05-08T23:40:44Z | |
date available | 2017-05-08T23:40:44Z | |
date copyright | May, 1993 | |
date issued | 1993 | |
identifier issn | 0148-0731 | |
identifier other | JBENDY-25897#149_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/111575 | |
description abstract | Hotani has filmed morphological transformations in unilamellar liposomes, starting from a spherical shape, when the interior volume decreases steadily. Hotani’s liposomes showed no evidence of general thermal fluctuations. We use a finite-deformation theory of axisymmetric, quasi-static thin shells to analyze theoretically bifurcations and changes of shape in liposomes under decreasing volume. The main structural action in a lipid bilayer is generally agreed to be its elastic resistance to bending, and it is usual to regard surface deformation as being like that of a two-dimensional liquid. We find, however, that some in-plane shear elasticity is also needed in order to produce the observed post-bifurcation behavior. Such an elasticity would be difficult to measure directly. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | The Mechanics of Axially Symmetric Liposomes | |
type | Journal Paper | |
journal volume | 115 | |
journal issue | 2 | |
journal title | Journal of Biomechanical Engineering | |
identifier doi | 10.1115/1.2894115 | |
journal fristpage | 149 | |
journal lastpage | 159 | |
identifier eissn | 1528-8951 | |
keywords | Elasticity | |
keywords | Deformation | |
keywords | Electrical resistance | |
keywords | Surface deformation | |
keywords | Fluctuations (Physics) | |
keywords | Shear (Mechanics) | |
keywords | Bifurcation | |
keywords | Lipid bilayers | |
keywords | Shapes AND Thin shells | |
tree | Journal of Biomechanical Engineering:;1993:;volume( 115 ):;issue: 002 | |
contenttype | Fulltext | |