Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides
Abstract Completely water‐based multicompartment systems have attracted a broad interest in recent years, mainly due to their versatile features such as permeability. Here, the associative formation of water‐in‐water (w/w) emulsions based on ultra‐high molecular weight poly(N,N‐dimethylacrylamide) (...
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| Format: | Article |
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Wiley-VCH
2025-02-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202400594 |
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| author | Rafael B. Lira Alexander Plucinski YouBeen Ko Niamh Bayliss Chris vanEwijk Wouter H. Roos Bernhard V. K. J. Schmidt |
| author_facet | Rafael B. Lira Alexander Plucinski YouBeen Ko Niamh Bayliss Chris vanEwijk Wouter H. Roos Bernhard V. K. J. Schmidt |
| author_sort | Rafael B. Lira |
| collection | DOAJ |
| description | Abstract Completely water‐based multicompartment systems have attracted a broad interest in recent years, mainly due to their versatile features such as permeability. Here, the associative formation of water‐in‐water (w/w) emulsions based on ultra‐high molecular weight poly(N,N‐dimethylacrylamide) (PDMA) and poly(4‐acryloylmorpholine) (PAM) is studied. The system is investigated using a combination of fluorescence microscopy and spectroscopy techniques. The system phase‐separates into aqueous droplets at very low polymer concentrations and exhibits intriguing physical properties. The formed emulsion droplets are extremely fluid (5–10 mPa.s), enable fast (5 µm2 s−1), nearly complete (mobile fraction ≈0.8) and unhindered diffusion within and across compartments, which is a hallmark of fluids. Furthermore, the very low interfacial tension (0.18–0.40 mN m−1) enables droplet coalescence leading to equilibrium formation of various emulsion structures. These properties show similarities to cell cytoplasm and coacervates and hence this type of w/w emulsion formed via associative non‐ionic interactions is a new direction in the field of synthetic cells and synthetic biology. |
| format | Article |
| id | doaj-art-ac8e3f33d8da4f7aa03278828c376cf1 |
| institution | Kabale University |
| issn | 2196-7350 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj-art-ac8e3f33d8da4f7aa03278828c376cf12025-02-03T13:24:06ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-02-01123n/an/a10.1002/admi.202400594Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight PolyacrylamidesRafael B. Lira0Alexander Plucinski1YouBeen Ko2Niamh Bayliss3Chris vanEwijk4Wouter H. Roos5Bernhard V. K. J. Schmidt6Moleculaire Biofysica Zernike Instituut Rijksuniversiteit Groningen Nijenborgh 3 Groningen 9747 NetherlandsSchool of Chemistry University of Glasgow Glasgow G12 8QQ UKMoleculaire Biofysica Zernike Instituut Rijksuniversiteit Groningen Nijenborgh 3 Groningen 9747 NetherlandsSchool of Chemistry University of Glasgow Glasgow G12 8QQ UKMoleculaire Biofysica Zernike Instituut Rijksuniversiteit Groningen Nijenborgh 3 Groningen 9747 NetherlandsMoleculaire Biofysica Zernike Instituut Rijksuniversiteit Groningen Nijenborgh 3 Groningen 9747 NetherlandsSchool of Chemistry University of Glasgow Glasgow G12 8QQ UKAbstract Completely water‐based multicompartment systems have attracted a broad interest in recent years, mainly due to their versatile features such as permeability. Here, the associative formation of water‐in‐water (w/w) emulsions based on ultra‐high molecular weight poly(N,N‐dimethylacrylamide) (PDMA) and poly(4‐acryloylmorpholine) (PAM) is studied. The system is investigated using a combination of fluorescence microscopy and spectroscopy techniques. The system phase‐separates into aqueous droplets at very low polymer concentrations and exhibits intriguing physical properties. The formed emulsion droplets are extremely fluid (5–10 mPa.s), enable fast (5 µm2 s−1), nearly complete (mobile fraction ≈0.8) and unhindered diffusion within and across compartments, which is a hallmark of fluids. Furthermore, the very low interfacial tension (0.18–0.40 mN m−1) enables droplet coalescence leading to equilibrium formation of various emulsion structures. These properties show similarities to cell cytoplasm and coacervates and hence this type of w/w emulsion formed via associative non‐ionic interactions is a new direction in the field of synthetic cells and synthetic biology.https://doi.org/10.1002/admi.202400594aqueous multi‐phase systemcoacervateliquid–liquid phase separationwater‐in‐water emulsion |
| spellingShingle | Rafael B. Lira Alexander Plucinski YouBeen Ko Niamh Bayliss Chris vanEwijk Wouter H. Roos Bernhard V. K. J. Schmidt Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides Advanced Materials Interfaces aqueous multi‐phase system coacervate liquid–liquid phase separation water‐in‐water emulsion |
| title | Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides |
| title_full | Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides |
| title_fullStr | Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides |
| title_full_unstemmed | Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides |
| title_short | Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides |
| title_sort | properties of pickering stabilized associative water in water emulsions based on ultra high molecular weight polyacrylamides |
| topic | aqueous multi‐phase system coacervate liquid–liquid phase separation water‐in‐water emulsion |
| url | https://doi.org/10.1002/admi.202400594 |
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