Buckling of Actin-Coated Membranes under Application of a Local Force

Helfer, Emmanuèle; Harlepp, Sébastien; Bourdieu, Laurent; Robert, Jérôme; MacKintosh, F. C.; Chatenay, D.

doi:10.1103/physrevlett.87.088103

Cited by 61 publications

(40 citation statements)

References 28 publications

(31 reference statements)

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“…According to [6] before the buckling threshold is reached, a concentrated force (P) induces a bending deformation of amplitude w 0 , which extends over a distance d as shown in Fig. 1.…”

Section: A Strain Energy Releasedmentioning

confidence: 99%

Buckling Load of Thin Spherical Shells Based on the Theorem of Work and Energy

Khakina¹

2013

IJET

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Abstract-Thin spherical shells usually fail due to buckling. An empirical equation to predict their buckling load is derived based on the theorem of work done and energy released in the inversion of a section of a shell and nonlinear finite element (FE) modeling done using ABAQUS to determine their post-buckling behavior. It is observed that the initial buckling is sensitive to initial geometrical imperfections but the post-buckling load is little influenced. Therefore, the post-buckling load is used to predict a more realistic load as compared to classical buckling theory prediction Index Terms-Imperfections, non-linearity, post-buckling, thin spherical shells

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“…According to [6] before the buckling threshold is reached, a concentrated force (P) induces a bending deformation of amplitude w 0 , which extends over a distance d as shown in Fig. 1.…”

Section: A Strain Energy Releasedmentioning

confidence: 99%

Buckling Load of Thin Spherical Shells Based on the Theorem of Work and Energy

Khakina¹

2013

IJET

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“…The length of the RNA was measured by correlating the QPD signal of the RNA attached bead versus a fixed bead [15]. The two beads are positioned in a different focal plane (see Fig.…”

Section: Probing the Length Of Intact Rna Molecules In Solutionmentioning

confidence: 99%

RNA labeling and immobilization for nano-displacement measurement: probing three-dimensional RNA structure

Akabayov

Henn

Elbaum

et al. 2003

IEEE Trans.on Nanobioscience

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RNA molecules play essential roles in many biological processes, including the storage and transfer of information in the cell. These events are mediated via RNA-protein interactions or by catalytic RNA molecules. It is now recognized that unique RNA folds are associated with biological functions. Therefore, to study the intrinsic structural changes and dynamics which regulate the various functions of RNA, it is necessary to probe its three-dimensional structure in solution. In this respect, using single-molecule methodologies may allow study of native RNA molecules independent of their size and in real time. However, this may require the immobilization of RNA on a surface. Here, we report a novel approach to immobilize RNA on a glass. The procedures involve both chemical and enzymatic modifications of long RNA molecules. In addition, we demonstrate the application of an optical tweezers apparatus to measure the length and, hence, the dynamics of immobilized intact ribosomal RNA molecules as a function of different solution conditions.

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“…Interestingly, a study on the liquid phase separation in model membranes revealed that the domain structure in MACs is affected by the type of pinning site used to bind actin to the membrane (Honigmann et al, 2014). Other cortex models include actin filament networks assembled on the inside or outside of membrane vesicles (Helfer et al, 2001;Limozin & Sackmann, 2002) and a variety of theory and modeling approaches have been used to describe 2D actin networks (Broedersz & MacKintosh, 2014;Chu & Voth, 2006;Onck, Koeman, van Dillen, & van der Giessen, 2005;Unterberger, Schmoller, Bausch, & Holzapfel, 2013;Wilhelm & Frey, 2003).…”

Section: Introductionmentioning

confidence: 98%