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dc.contributor.authorKim, Dae-Yoon
dc.contributor.authorChristoff-Tempesta, Ty
dc.contributor.authorLamour, Guillaume
dc.contributor.authorZuo, Xiaobing
dc.contributor.authorRyu, Ki-Hyun
dc.contributor.authorOrtony, Julia H
dc.date.accessioned2022-05-16T18:48:51Z
dc.date.available2022-05-16T18:48:51Z
dc.date.issued2021
dc.identifier.urihttps://hdl.handle.net/1721.1/142560
dc.description.abstractSelf-assembly of small amphiphilic molecules in water can lead to nanostructures of varying geometries with pristine internal molecular organization. Here we introduce a photoswitchable aramid amphiphile (AA), designed to exhibit extensive hydrogen bonding and robust mechanical properties upon self-assembly, while containing a vinylnitrile group for photoinduced cis-trans isomerization. We demonstrate spontaneous self-assembly of the vinylnitrile-containing AA in water to form nanoribbons. Upon UV irradiation, trans-to-cis isomerizations occur concomitantly with a morphological transition from nanoribbons to nanotubes. The nanotube structure persists in water for over six months, stabilized by strong and collective intermolecular interactions. We demonstrate that the nanoribbon-to-nanotube transition is reversible upon heating and that switching between states can be achieved repeatedly. Finally, we use electron microscopy to capture the transition and propose mechanisms for nanoribbon-to-nanotube rearrangement and vice versa. The stability and switchability of photoresponsive AA nanostructures make them viable for a range of future applications.en_US
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)en_US
dc.relation.isversionof10.1021/ACS.NANOLETT.0C05048en_US
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 Internationalen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceOther Repositoryen_US
dc.titleMorphological Transitions of a Photoswitchable Aramid Amphiphile Nanostructureen_US
dc.typeArticleen_US
dc.identifier.citationKim, Dae-Yoon, Christoff-Tempesta, Ty, Lamour, Guillaume, Zuo, Xiaobing, Ryu, Ki-Hyun et al. 2021. "Morphological Transitions of a Photoswitchable Aramid Amphiphile Nanostructure." Nano Letters, 21 (7).
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineering
dc.relation.journalNano Lettersen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2022-05-16T18:39:58Z
dspace.orderedauthorsKim, D-Y; Christoff-Tempesta, T; Lamour, G; Zuo, X; Ryu, K-H; Ortony, JHen_US
dspace.date.submission2022-05-16T18:40:04Z
mit.journal.volume21en_US
mit.journal.issue7en_US
mit.licenseOPEN_ACCESS_POLICY
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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