Dynamics of pearling instability in polymersomes: the role of shear membrane viscosity and spontaneous curvature
hal.structure.identifier | Laboratoire de Mécanique, Modélisation et Procédés Propres [M2P2] | |
hal.structure.identifier | Laboratoire Rhéologie et Procédés [LRP] | |
dc.contributor.author | LYU, J | |
hal.structure.identifier | Laboratoire de Mécanique, Modélisation et Procédés Propres [M2P2] | |
hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
dc.contributor.author | XIE, K | |
hal.structure.identifier | Laboratoire Rhéologie et Procédés [LRP] | |
hal.structure.identifier | Centre Interdisciplinaire de Nanoscience de Marseille [CINaM] | |
dc.contributor.author | CHACHANIDZE, R | |
hal.structure.identifier | Institut de Recherche sur les Phénomènes Hors Equilibre [IRPHE] | |
dc.contributor.author | KAHLI, A | |
hal.structure.identifier | Aix Marseille Université [AMU] | |
hal.structure.identifier | Institut de Recherche sur les Phénomènes Hors Equilibre [IRPHE] | |
dc.contributor.author | BOEDEC, Gwenn | |
hal.structure.identifier | Laboratoire Rhéologie et Procédés [LRP] | |
hal.structure.identifier | Institut de Recherche sur les Phénomènes Hors Equilibre [IRPHE] | |
hal.structure.identifier | Centre Interdisciplinaire de Nanoscience de Marseille [CINaM] | |
dc.contributor.author | LEONETTI, Marc | |
dc.date.issued | 2021-12-22 | |
dc.identifier.issn | 1070-6631 | |
dc.description.abstractEn | The stability of copolymer tethers is investigated theoretically. Self-assembly of diblockor triblock copolymers can lead to tubular polymersomes which are known experimentallyto undergo shape instability under thermal, chemical and tension stresses. It leads to aperiodic modulation of the radius which evolves to assembly-line pearls connected by tinytethers. We study the contributions of shear surface viscosity and spontaneous curvatureand their interplay to understand the pearling instability. The performed linear analysisof stability of this cylinder-to-pearls transition shows that such systems are unstable if themembrane tension is larger than a finite critical value contrary to the Rayleigh-Plateauinstability, an already known result or if the spontaneous curvature is in a specific rangewhich depends on membrane tension. For the case of spontaneous curvature-induced shapeinstability, two dynamical modes are identified. The first one is analog to the tension-induced instability with a marginal mode. Its wavenumber associated with the most un-stable mode decreases continuously to zero as membrane viscosity increases. The secondone has a finite range of unstable wavenumbers. The wavenumber of the most unstablemode tends redto be constant as membrane viscosity increases. In this mode, its growthrate becomes independent of the bulk viscosity in the limit of high membrane viscosity andbehaves as a pure viscous surface. | |
dc.description.sponsorship | Des écoulements interfaciaux aux viscosités de surface - ANR-18-CE06-0008 | |
dc.language.iso | en | |
dc.publisher | American Institute of Physics | |
dc.title.en | Dynamics of pearling instability in polymersomes: the role of shear membrane viscosity and spontaneous curvature | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1063/5.0075266 | |
dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph] | |
dc.subject.hal | Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft] | |
dc.identifier.arxiv | 2110.07026 | |
bordeaux.journal | Physics of Fluids | |
bordeaux.page | 122016 | |
bordeaux.volume | 33 | |
bordeaux.issue | 12 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-03467425 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-03467425v1 | |
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