Afficher la notice abrégée

Deformation of phospholipid vesicles in an optical stretcher

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierPhysico-Chimie-Curie [PCC]
hal.structure.identifierCavendish Laboratory
dc.contributor.authorDELABRE, Ulysse
hal.structure.identifierNiels Bohr Institute [Copenhagen] [NBI]
hal.structure.identifierCavendish Laboratory
dc.contributor.authorFELD, Kasper
hal.structure.identifierCavendish Laboratory
dc.contributor.authorCRESPO, Eleonore
hal.structure.identifierCavendish Laboratory
hal.structure.identifierInstitute of Biological Chemistry, Biophysics and Bioengineering
dc.contributor.authorWHYTE, Graeme
hal.structure.identifierPhysico-Chimie-Curie [PCC]
dc.contributor.authorSYKES, C.
hal.structure.identifierInstitut für Theoretische Physik
dc.contributor.authorSEIFERT, Udo
hal.structure.identifierBiotechnology Center [Dresden] [BIOTEC]
hal.structure.identifierCavendish Laboratory
dc.contributor.authorGUCK, Jochen
dc.date.created2015-03-11
dc.date.issued2015-08-14
dc.identifier.issn1744-683X
dc.description.abstractEnPhospholipid vesicles are common model systems for cell membranes. Important aspects of the membrane function relate to its mechanical properties. Here we have investigated the deformation behaviour of phospholipid vesicles in a dual-beam laser trap, also called an optical stretcher. This study explicitly makes use of the inherent heating present in such traps to investigate the dependence of vesicle deformation on temperature. By using lasers with different wavelengths, optically induced mechanical stresses and temperature increase can be tuned fairly independently with a single setup. The phase transition temperature of vesicles can be clearly identified by an increase in deformation. In the case of no heating effects, a minimal model for drop deformation in an optical stretcher and a more specific model for vesicle deformation that takes explicitly into account the angular dependence of the optical stress are presented to account for the experimental results. Elastic constants are extracted from the fitting procedures, which agree with literature data. This study demonstrates the utility of optical stretching, which is easily combined with microfluidic delivery, for the future serial, high-throughput study of the mechanical and thermodynamic properties of phospholipid vesicles.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.rights.urihttp://creativecommons.org/licenses/by-sa/
dc.title.enDeformation of phospholipid vesicles in an optical stretcher
dc.typeArticle de revue
dc.identifier.doi10.1039/C5SM00562K
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
dc.description.sponsorshipEuropeFeeling with Light - Development of a multimodal optofluidic platform for high-content blood cell analysis
bordeaux.journalSoft Matter
bordeaux.page6075-6088
bordeaux.volume11
bordeaux.issue30
bordeaux.peerReviewedoui
hal.identifierhal-01186742
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01186742v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Soft%20Matter&rft.date=2015-08-14&rft.volume=11&rft.issue=30&rft.spage=6075-6088&rft.epage=6075-6088&rft.eissn=1744-683X&rft.issn=1744-683X&rft.au=DELABRE,%20Ulysse&FELD,%20Kasper&CRESPO,%20Eleonore&WHYTE,%20Graeme&SYKES,%20C.&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée