Creating nanoscale emulsions using condensation
Nanoscale emulsions are essential components in numerous products, ranging from processed foods to novel drug delivery systems. Existing emulsification methods rely either on the breakup of larger droplets or solvent exchange/inversion. Here we report a simple, scalable method of creating nanoscale...
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| Format: | Article |
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Nature Publishing Group
2017
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| Online Access: | http://hdl.handle.net/1721.1/112738 https://orcid.org/0000-0003-4272-3111 https://orcid.org/0000-0002-1480-1840 https://orcid.org/0000-0002-6846-152X |
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| author | Guha, Ingrid F. Anand, Sushant Varanasi, Kripa |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Guha, Ingrid F. Anand, Sushant Varanasi, Kripa |
| author_sort | Guha, Ingrid F. |
| collection | MIT |
| description | Nanoscale emulsions are essential components in numerous products, ranging from processed foods to novel drug delivery systems. Existing emulsification methods rely either on the breakup of larger droplets or solvent exchange/inversion. Here we report a simple, scalable method of creating nanoscale water-in-oil emulsions by condensing water vapor onto a subcooled oil-surfactant solution. Our technique enables a bottom-up approach to forming small-scale emulsions. Nanoscale water droplets nucleate at the oil/air interface and spontaneously disperse within the oil, due to the spreading dynamics of oil on water. Oil-soluble surfactants stabilize the resulting emulsions. We find that the oil-surfactant concentration controls the spreading behavior of oil on water, as well as the peak size, polydispersity, and stability of the resulting emulsions. Using condensation, we form emulsions with peak radii around 100 nm and polydispersities around 10%. This emulsion formation technique may open different routes to creating emulsions, colloidal systems, and emulsion-based materials. |
| first_indexed | 2024-09-23T10:46:32Z |
| format | Article |
| id | mit-1721.1/112738 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:46:32Z |
| publishDate | 2017 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/1127382022-09-27T14:55:45Z Creating nanoscale emulsions using condensation Guha, Ingrid F. Anand, Sushant Varanasi, Kripa Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Mechanical Engineering Guha, Ingrid F. Anand, Sushant Varanasi, Kripa Nanoscale emulsions are essential components in numerous products, ranging from processed foods to novel drug delivery systems. Existing emulsification methods rely either on the breakup of larger droplets or solvent exchange/inversion. Here we report a simple, scalable method of creating nanoscale water-in-oil emulsions by condensing water vapor onto a subcooled oil-surfactant solution. Our technique enables a bottom-up approach to forming small-scale emulsions. Nanoscale water droplets nucleate at the oil/air interface and spontaneously disperse within the oil, due to the spreading dynamics of oil on water. Oil-soluble surfactants stabilize the resulting emulsions. We find that the oil-surfactant concentration controls the spreading behavior of oil on water, as well as the peak size, polydispersity, and stability of the resulting emulsions. Using condensation, we form emulsions with peak radii around 100 nm and polydispersities around 10%. This emulsion formation technique may open different routes to creating emulsions, colloidal systems, and emulsion-based materials. 2017-12-13T18:08:57Z 2017-12-13T18:08:57Z 2017-11 2017-05 2017-12-11T20:25:10Z Article http://purl.org/eprint/type/JournalArticle 2041-1723 http://hdl.handle.net/1721.1/112738 Guha, Ingrid F. et al. “Creating Nanoscale Emulsions Using Condensation.” Nature Communications 8, 1 (November 2017): 1371 © 2017 The Author(s) https://orcid.org/0000-0003-4272-3111 https://orcid.org/0000-0002-1480-1840 https://orcid.org/0000-0002-6846-152X http://dx.doi.org/10.1038/s41467-017-01420-8 Nature Communications Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature |
| spellingShingle | Guha, Ingrid F. Anand, Sushant Varanasi, Kripa Creating nanoscale emulsions using condensation |
| title | Creating nanoscale emulsions using condensation |
| title_full | Creating nanoscale emulsions using condensation |
| title_fullStr | Creating nanoscale emulsions using condensation |
| title_full_unstemmed | Creating nanoscale emulsions using condensation |
| title_short | Creating nanoscale emulsions using condensation |
| title_sort | creating nanoscale emulsions using condensation |
| url | http://hdl.handle.net/1721.1/112738 https://orcid.org/0000-0003-4272-3111 https://orcid.org/0000-0002-1480-1840 https://orcid.org/0000-0002-6846-152X |
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