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Fatty Acid Chemistry at the Oil−Water Interface: Self-Propelled Oil Droplets
Abstract
Fatty acids have been investigated as boundary structures to construct artificial cells due to their dynamic properties and phase transitions. Here we have explored the possibility that fatty acid systems also demonstrate movement. An oil phase was loaded with a fatty acid anhydride precursor and introduced to an aqueous fatty acid micelle solution. The oil droplets showed autonomous, sustained movement through the aqueous media. Internal convection created a positive feedback loop, and the movement of the oil droplet was sustained as convection drove fresh precursor to the surface to become hydrolyzed. As the system progressed, more surfactant was produced and some of the oil droplets transformed into supramolecular aggregates resembling multilamellar vesicles. The oil droplets also moved directionally within chemical gradients and exhibited a type of chemotaxis.
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Cites
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Metadata
- Authors
- Hanczyc, M. M., Toyota, T., Ikegami, T., Packard, N., & Sugawara, T.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-07-06
- Volume
- 129
- Issue
- 30
- Pages
- 9386-9391
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2086400909
- Cited by
- 314
- References
- 1
- FWCI
- 6.08
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
