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https://hdl.handle.net/10316/106216
Título: | Soft Nanoonions: A Dynamic Overview onto Catanionic Vesicles Temperature-Driven Transition | Autor: | Milcovich, Gesmi Antunes, Filipe E. Grassi, Mario Asaro, Fioretta |
Palavras-chave: | catanionic vesicles; diffusion; NMR; nanoreservoirs; microscopy | Data: | 16-Set-2020 | Editora: | MDPI | Título da revista, periódico, livro ou evento: | International Journal of Molecular Sciences | Volume: | 21 | Número: | 18 | Resumo: | Catanionic vesicles are emerging interesting structures for bioapplications. They self-generate by a pairing of oppositely charged ionic surfactants that assemble into hollow structures. Specifically, the anionic-cationic surfactant pair assumes a double-tailed zwitterionic behavior. In this work, the multilamellar-to-unilamellar thermal transition of several mixed aqueous systems, with a slight excess of the anionic one, were investigated. Interestingly, it was found that the anionic counterion underwent a dissociation as a consequence of a temperature increase, leading to the mentioned thermal transition. The present work proposed the spectroscopic techniques, specifically multinuclear NMR and PGSTE (pulsed gradient stimulated echo), as a key tool to study such systems, with high accuracy and effectiveness, while requiring a small amount of the sample. The results presented herein evidence encouraging perspectives, forecasting the application of the studied vesicular nanoreservoirs, for e.g., drug delivery. | URI: | https://hdl.handle.net/10316/106216 | ISSN: | 1422-0067 | DOI: | 10.3390/ijms21186804 | Direitos: | openAccess |
Aparece nas coleções: | I&D CQC - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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Soft-nanoonions-A-dynamic-overview-onto-catanionic-vesicles-temperaturedriven-transitionInternational-Journal-of-Molecular-Sciences.pdf | 7.81 MB | Adobe PDF | Ver/Abrir |
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