Branched copolymer surfactants as versatile templates for responsive emulsifiers with bespoke temperature-triggered emulsion-breaking or gelation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00580335" target="_blank" >RIV/61389013:_____/24:00580335 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/admi.202300755" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/admi.202300755</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/admi.202300755" target="_blank" >10.1002/admi.202300755</a>
Alternative languages
Result language
angličtina
Original language name
Branched copolymer surfactants as versatile templates for responsive emulsifiers with bespoke temperature-triggered emulsion-breaking or gelation
Original language description
It has been found that the thermoresponsive behavior of emulsions stabilized by block copolymer surfactants (BCSs) can induce either gelation or emulsion break-up with mild temperature changes. A hydrophilic, steric-stabilizing component of the BCS, polyethylene glycol methacrylate (PEGMA), is crucial to control the thermoresponsive behavior of the emulsions: longer PEG chains (950 g mol−1) lead to thermoregulation, whereas shorter PEGM chains (500 or 300 g mol−1) lead to emulsion break-up upon mild heating. Additionally, the relative abundance of PEGMA to the thermoresponsive component in the BCS controls the gelation temperature of BCS-stabilized emulsions. Small-angle neutron scattering and transmission electron microscopy reveal that the BCS forms oblate ellipsoids which grow anisotropically with temperature. In samples that form a gel, there is evidence that these nano-objects form supra-colloidal structures, which are responsible for the gel mesophase formation. An optimal BCS can form emulsions that transition from a liquid to gel state when warmed above 32 °C. This makes the system ideal for in situ gelation upon contact with the body. Overall, this study highlights the great potential of BCSs in generating thermoresponsive emulsions for drug delivery and other healthcare applications.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Materials Interfaces
ISSN
2196-7350
e-ISSN
2196-7350
Volume of the periodical
11
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
2300755
UT code for WoS article
001090688000001
EID of the result in the Scopus database
2-s2.0-85174903936