Lipid membrane flexibility in protic ionic liquids

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dc.contributor.authorMiao, Shurui
dc.contributor.authorHoffmann, Ingo
dc.contributor.authorGradzielski, Michael
dc.contributor.authorWarr, Gregory G.
dc.date.accessioned2022-09-09T13:26:45Z
dc.date.available2022-09-09T13:26:45Z
dc.date.issued2022-06-07
dc.description.abstractHere, we determine by neutron spin echo spectrometry (NSE) how the flexibility of egg lecithin vesicles depends on solvent composition in two protic ionic liquids (PILs) and their aqueous mixtures. In combination with small-angle neutron scattering (SANS), dynamic light scattering (DLS), and fluorescent probe microscopy, we show that the bending modulus is up to an order of magnitude lower than in water but with no change in bilayer thickness or nonpolar chain composition. This effect is attributed to the dynamic association and exchange of the IL cation between the membrane and bulk liquid, which has the same origin as the underlying amphiphilic nanostructure of the IL solvent itself. This provides a new mechanism by which to tune and control lipid membrane behavior.en
dc.description.sponsorshipEC/H2020/731096/EU/The Future of ILL 2030/FILL2030en
dc.description.sponsorshipBMBF, 05K13KT1, Probenumgebung und paralle Charakterisierung bei hochpräzisen Neutronen Spin-Echo (NSE) Messungen an komplexen Systemen der weichen Materieen
dc.identifier.eissn1948-7185
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/17404
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-16185
dc.language.isoenen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc530 Physikde
dc.subject.otherlipid bilayeren
dc.subject.otherionic liquidsen
dc.subject.otherinelastic neutron scatteringen
dc.titleLipid membrane flexibility in protic ionic liquidsen
dc.typeArticleen
dc.type.versionacceptedVersionen
dcterms.bibliographicCitation.doi10.1021/acs.jpclett.2c00980en
dcterms.bibliographicCitation.issue23en
dcterms.bibliographicCitation.journaltitleThe journal of physical chemistry lettersen
dcterms.bibliographicCitation.originalpublishernameAmerican Chemical Societyen
dcterms.bibliographicCitation.originalpublisherplaceWashington, DCen
dcterms.bibliographicCitation.pageend5245en
dcterms.bibliographicCitation.pagestart5240en
dcterms.bibliographicCitation.volume13en
tub.accessrights.dnbdomain*
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Physikalische Chemie / Molekulare Materialwissenschaftende
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Physikalische Chemie / Molekulare Materialwissenschaftende
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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