 |
Journal articles
Biocompatible Stimuli-Responsive W/O/W Multiple Emulsions Prepared by One-Step Mixing with a Single Diblock Copolymer Emulsifier
Abstract : Multiple water-in-oil-in-water (W/O/W) emulsions are promising materials in designing carriers of hydrophilic molecules or drug delivery systems, provided stability issues are solved and biocompatible chemicals can be used. In this work, we designed a biocompatible amphiphilic copolymer, poly(dimethylsiloxane)-b-poly(2-(dimethylamino)ethyl methacrylate) (PDMS-b-PDMAE-MA), that can stabilize emulsions made with various biocompatible oils. The hydrophilic/hydrophobic properties of the copolymer can be adjusted using both pH and ionic strength stimuli. Consequently, the making of O/W (oil in water), W/O (water in oil), and W/O/W emulsions can be achieved by sweeping the pH and ionic strength. Of importance, W/O/W emulsions are formulated over a large pH and ionic strength domain in a one-step emulsification process via transitional phase inversion and are stable for several months. Cryo-TEM and interfacial tension studies show that the formation of these W/O/W emulsions is likely to be correlated to the interfacial film curvature and microemulsion morphology.
Cited literature [36 references]
https://hal-cea.archives-ouvertes.fr/cea-01387471
Contributor : Serge Palacin <>
Submitted on : Monday, December 12, 2016 - 1:59:27 PM
Last modification on : Wednesday, December 9, 2020 - 3:45:19 AM
Long-term archiving on: : Monday, March 27, 2017 - 4:48:35 PM
Contributor : Serge Palacin <>
Submitted on : Monday, December 12, 2016 - 1:59:27 PM
Last modification on : Wednesday, December 9, 2020 - 3:45:19 AM
Long-term archiving on: : Monday, March 27, 2017 - 4:48:35 PM
File
Protat_2016_Biocompatible.pdf
Files produced by the author(s)