dc.contributor.author | Kim, Dae-Yoon | |
dc.contributor.author | Christoff-Tempesta, Ty | |
dc.contributor.author | Lamour, Guillaume | |
dc.contributor.author | Zuo, Xiaobing | |
dc.contributor.author | Ryu, Ki-Hyun | |
dc.contributor.author | Ortony, Julia H | |
dc.date.accessioned | 2022-05-16T18:48:51Z | |
dc.date.available | 2022-05-16T18:48:51Z | |
dc.date.issued | 2021 | |
dc.identifier.uri | https://hdl.handle.net/1721.1/142560 | |
dc.description.abstract | Self-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.iso | en | |
dc.publisher | American Chemical Society (ACS) | en_US |
dc.relation.isversionof | 10.1021/ACS.NANOLETT.0C05048 | en_US |
dc.rights | Attribution-NonCommercial-ShareAlike 4.0 International | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
dc.source | Other Repository | en_US |
dc.title | Morphological Transitions of a Photoswitchable Aramid Amphiphile Nanostructure | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Kim, 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.department | Massachusetts Institute of Technology. Department of Materials Science and Engineering | |
dc.relation.journal | Nano Letters | en_US |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2022-05-16T18:39:58Z | |
dspace.orderedauthors | Kim, D-Y; Christoff-Tempesta, T; Lamour, G; Zuo, X; Ryu, K-H; Ortony, JH | en_US |
dspace.date.submission | 2022-05-16T18:40:04Z | |
mit.journal.volume | 21 | en_US |
mit.journal.issue | 7 | en_US |
mit.license | OPEN_ACCESS_POLICY | |
mit.metadata.status | Authority Work and Publication Information Needed | en_US |