Responsive self-assemblies based on fatty acids |
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| Institution: | 1. UR1268 Biopolymères Interactions Assemblages, Institut National de la Recherche Agronomique, rue de la Géraudière, F-44316 Nantes cedex 3, France;2. Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, Rennes, France;1. Food Science Department, University of Guelph, Guelph, ON, Canada;2. Physics Department, St. Francis Xavier University, Antigonish, NS, Canada;1. Unilever R & D Vlaardingen, Olivier van Noortlaan 120, 3133 AT Vlaardingen, The Netherlands;2. Soft Condensed Matter, Debye Institute for Nanomaterials, Utrecht University, Utrecht, The Netherlands;3. Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695-7905, USA;1. Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal;2. Division of Physical Chemistry Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, SE-221 00 Lund, Sweden;3. Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore;4. FSCN, MidSweden University, SE-851 70 Sundsvall, Sweden;5. Faculty of Sciences and Technology (MEDITBIO), University of Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal;6. Division of Theoretical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, SE-221 00 Lund, Sweden;1. Laboratoire de Physique des Solides, CNRS, Université Paris Sud, Université Paris Saclay, Bâtiment 510, 91400 Orsay Cedex, France;2. Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n 83000 Hermosillo, Sonora, México |
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| Abstract: | Fatty acids are anionic surfactants under their deprotonated forms. They are surfactants with both biodegrability and low toxicity. Fatty acid molecules can self-assemble under various shapes in an aqueous solution. These self-assembled structures can respond to stimuli such as pH, CO2 and temperature due to changes occurring at the molecular level. These specificities make them surfactants of special interest to tune the properties at a macroscopic scale. The aim of this article is to review the recent advances in the creation and in the understanding of responsive self-assemblies obtained from fatty acid molecules in an aqueous solution. The links between the microscopic, mesoscopic and macroscopic scales are described. The alkyl chain melting phenomenon triggered by temperature at the molecular level leading to thermoresponsive interfaces and foams at the macroscopic scale is highlighted. |
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