Search Results - "Livne, Ariel"
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The inner workings of stress fibers - from contractile machinery to focal adhesions and back
Published in Journal of cell science (01-04-2016)“…Ventral stress fibers and focal adhesions are physically coupled structures that play key roles in cellular mechanics and force sensing. The tight functional…”
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Near-Tip Fields of Fast Cracks
Published in Science (American Association for the Advancement of Science) (12-03-2010)“…In a stressed body, crack propagation is the main vehicle for material failure. Cracks create large stress amplification at their tips, leading to large…”
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3
Breakdown of linear elastic fracture mechanics near the tip of a rapid crack
Published in Physical review letters (31-12-2008)“…We present high resolution measurements of the displacement and strain fields near the tip of a dynamic (mode I) crack. The experiments are performed on…”
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4
Weakly nonlinear theory of dynamic fracture
Published in Physical review letters (31-12-2008)“…The common approach to crack dynamics, linear elastic fracture mechanics, assumes infinitesimal strains and predicts a r(-1/2) strain divergence at a crack…”
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5
Mechanical interplay between invadopodia and the nucleus in cultured cancer cells
Published in Scientific reports (30-03-2015)“…Invadopodia are actin-rich membrane protrusions through which cells adhere to the extracellular matrix and degrade it. In this study, we explored the…”
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The 1 / r singularity in weakly nonlinear fracture mechanics
Published in Journal of the mechanics and physics of solids (01-09-2009)“…Material failure by crack propagation essentially involves a concentration of large displacement-gradients near a crack's tip, even at scales where no…”
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7
Differential effect of actomyosin relaxation on the dynamic properties of focal adhesion proteins
Published in PloS one (09-09-2013)“…Treatment of cultured cells with inhibitors of actomyosin contractility induces rapid deterioration of stress fibers, and disassembly of the associated focal…”
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8
Cell reorientation under cyclic stretching
Published in Nature communications (30-05-2014)“…Mechanical cues from the extracellular microenvironment play a central role in regulating the structure, function and fate of living cells. Nevertheless, the…”
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Acquisition of inertia by a moving crack
Published in Physical review letters (19-03-2010)“…We experimentally investigate the dynamics of "simple" tensile cracks. Within an effectively infinite medium, a crack's dynamics perfectly correspond to…”
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10
Tissue-Level Mechanosensitivity: Predicting and Controlling the Orientation of 3D Vascular Networks
Published in Nano letters (12-12-2018)“…Understanding the mechanosensitivity of tissues is a fundamentally important problem having far-reaching implications for tissue engineering. Here we study…”
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Oscillations in rapid fracture
Published in Physical review letters (23-03-2007)“…Experiments of pure tensile fracture in thin brittle gels reveal a new dynamic oscillatory instability whose onset occurs at a critical velocity, VC=0.87CS,…”
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Force Loading During Mechanosensing Emerges from Non-Mechanosensitive Active Displacements
Published in Biophysical journal (15-02-2019)Get full text
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13
Cellular contractile forces are nonmechanosensitive
Published in Science advances (01-04-2020)“…Cells' ability to apply contractile forces to their environment and to sense its mechanical properties (e.g., rigidity) are among their most fundamental…”
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14
Cell Reorientation under Cyclic Stretching
Published in Biophysical journal (28-01-2014)Get full text
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15
Conformational states during vinculin unlocking differentially regulate focal adhesion properties
Published in Scientific reports (09-02-2018)“…Focal adhesions (FAs) are multi-protein complexes that connect the actin cytoskeleton to the extracellular matrix, via integrin receptors. The growth,…”
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Weakly nonlinear fracture mechanics: experiments and theory
Published in International journal of fracture (01-03-2010)“…Material failure occurs at the small scales in the immediate vicinity of the tip of a crack. Due to its generally microscopic size and the typically high crack…”
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Journal Article Conference Proceeding -
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Differential Effect of Actomyosin Relaxation on the Dynamic Properties of Focal Adhesion Proteins: e73549
Published in PloS one (01-09-2013)“…Treatment of cultured cells with inhibitors of actomyosin contractility induces rapid deterioration of stress fibers, and disassembly of the associated focal…”
Get full text
Journal Article -
18
Cell reorientation under cyclic stretching
Published 01-12-2014“…Nature Communications 5, 3938 (2014) Mechanical cues from the extracellular microenvironment play a central role in regulating the structure, function and fate…”
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Journal Article -
19
The 1/r singularity in weakly nonlinear fracture mechanics
Published 12-02-2009“…Journal of the Mechanics and Physics of Solids 57, 1568 (2009) Material failure by crack propagation essentially involves a concentration of large…”
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Journal Article -
20
The Breakdown of Linear Elastic Fracture Mechanics near the Tip of a Rapid Crack
Published 07-10-2008“…Phys. Rev. Lett. 101, 264301 (2008) We present high resolution measurements of the displacement and strain fields near the tip of a dynamic (Mode I) crack. The…”
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