Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads
© 2021, The Author(s), under exclusive licence to Springer Nature Limited. Small-molecule self-assembly is an established route for producing high-surface-area nanostructures with readily customizable chemistries and precise molecular organization. However, these structures are fragile, exhibiting m...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2022
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| Online Access: | https://hdl.handle.net/1721.1/142561 |
| _version_ | 1826196956544761856 |
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| author | Christoff-Tempesta, Ty Cho, Yukio Kim, Dae-Yoon Geri, Michela Lamour, Guillaume Lew, Andrew J Zuo, Xiaobing Lindemann, William R Ortony, Julia H |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Christoff-Tempesta, Ty Cho, Yukio Kim, Dae-Yoon Geri, Michela Lamour, Guillaume Lew, Andrew J Zuo, Xiaobing Lindemann, William R Ortony, Julia H |
| author_sort | Christoff-Tempesta, Ty |
| collection | MIT |
| description | © 2021, The Author(s), under exclusive licence to Springer Nature Limited. Small-molecule self-assembly is an established route for producing high-surface-area nanostructures with readily customizable chemistries and precise molecular organization. However, these structures are fragile, exhibiting molecular exchange, migration and rearrangement—among other dynamic instabilities—and are prone to dissociation upon drying. Here we show a small-molecule platform, the aramid amphiphile, that overcomes these dynamic instabilities by incorporating a Kevlar-inspired domain into the molecular structure. Strong, anisotropic interactions between aramid amphiphiles suppress molecular exchange and elicit spontaneous self-assembly in water to form nanoribbons with lengths of up to 20 micrometres. Individual nanoribbons have a Young’s modulus of 1.7 GPa and tensile strength of 1.9 GPa. We exploit this stability to extend small-molecule self-assembly to hierarchically ordered macroscopic materials outside of solvated environments. Through an aqueous shear alignment process, we organize aramid amphiphile nanoribbons into arbitrarily long, flexible threads that support 200 times their weight when dried. Tensile tests of the dry threads provide a benchmark for Young’s moduli (between ~400 and 600 MPa) and extensibilities (between ~0.6 and 1.1%) that depend on the counterion chemistry. This bottom-up approach to macroscopic materials could benefit solid-state applications historically inaccessible by self-assembled nanomaterials. |
| first_indexed | 2024-09-23T10:40:15Z |
| format | Article |
| id | mit-1721.1/142561 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:40:15Z |
| publishDate | 2022 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1425612023-07-28T19:43:51Z Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads Christoff-Tempesta, Ty Cho, Yukio Kim, Dae-Yoon Geri, Michela Lamour, Guillaume Lew, Andrew J Zuo, Xiaobing Lindemann, William R Ortony, Julia H Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Chemistry © 2021, The Author(s), under exclusive licence to Springer Nature Limited. Small-molecule self-assembly is an established route for producing high-surface-area nanostructures with readily customizable chemistries and precise molecular organization. However, these structures are fragile, exhibiting molecular exchange, migration and rearrangement—among other dynamic instabilities—and are prone to dissociation upon drying. Here we show a small-molecule platform, the aramid amphiphile, that overcomes these dynamic instabilities by incorporating a Kevlar-inspired domain into the molecular structure. Strong, anisotropic interactions between aramid amphiphiles suppress molecular exchange and elicit spontaneous self-assembly in water to form nanoribbons with lengths of up to 20 micrometres. Individual nanoribbons have a Young’s modulus of 1.7 GPa and tensile strength of 1.9 GPa. We exploit this stability to extend small-molecule self-assembly to hierarchically ordered macroscopic materials outside of solvated environments. Through an aqueous shear alignment process, we organize aramid amphiphile nanoribbons into arbitrarily long, flexible threads that support 200 times their weight when dried. Tensile tests of the dry threads provide a benchmark for Young’s moduli (between ~400 and 600 MPa) and extensibilities (between ~0.6 and 1.1%) that depend on the counterion chemistry. This bottom-up approach to macroscopic materials could benefit solid-state applications historically inaccessible by self-assembled nanomaterials. 2022-05-16T18:54:55Z 2022-05-16T18:54:55Z 2021 2022-05-16T18:48:33Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142561 Christoff-Tempesta, Ty, Cho, Yukio, Kim, Dae-Yoon, Geri, Michela, Lamour, Guillaume et al. 2021. "Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads." Nature Nanotechnology, 16 (4). en 10.1038/S41565-020-00840-W Nature Nanotechnology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Springer Science and Business Media LLC DOE repository |
| spellingShingle | Christoff-Tempesta, Ty Cho, Yukio Kim, Dae-Yoon Geri, Michela Lamour, Guillaume Lew, Andrew J Zuo, Xiaobing Lindemann, William R Ortony, Julia H Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads |
| title | Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads |
| title_full | Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads |
| title_fullStr | Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads |
| title_full_unstemmed | Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads |
| title_short | Self-assembly of aramid amphiphiles into ultra-stable nanoribbons and aligned nanoribbon threads |
| title_sort | self assembly of aramid amphiphiles into ultra stable nanoribbons and aligned nanoribbon threads |
| url | https://hdl.handle.net/1721.1/142561 |
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