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URN to cite this document: urn:nbn:de:bvb:703-epub-9057-1
Title data
Ulrich, Hans F. ; Klein, Tobias ; Zhao, Ziliang ; Cseresnyés, Zoltán ; Carravilla, Pablo ; Gerst, Ruman ; Kasberg, Alina ; Scharfenberg, Frederic P. ; Figge, Marc Thilo ; Eggeling, Christian ; Brendel, Johannes C.:
Selective Activation of Dynamics in Kinetically Frozen Supramolecular Polymer Bottlebrush Assemblies.
In: Small.
Vol. 21
(2025)
Issue 44
.
- e05481.
ISSN 1613-6829
DOI der Verlagsversion: https://doi.org/10.1002/smll.202505481
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Project information
| Project title: |
Project's official title Project's id Supramolekulare Polymerbürsten als Wirkstoffträgersysteme – Aufbau definierter und reaktiver Systeme 358263073 Nanostrukturierung reaktiver Polymere – Von funktionellen Wirkstoffträgern zu hierarchisch strukturierten, lebensähnlichen Systemen 517761335 SFB 1278: Polymerbasierte Nanopartikel-Bibliotheken für die Entwicklung zielgerichteter anti-inflammatorischer Strategien 316213987 EXC 2051: Gleichgewicht im Mikroversum 390713860 Open Access Publizieren No information |
|---|---|
| Project financing: |
Deutsche Forschungsgemeinschaft |
Abstract
Supramolecular assemblies are typically characterized by their dynamic nature due to the comparable weak non-covalent interactions. While these properties confer adaptability, stability issues may limit application in areas such as drug delivery or tissue engineering. Here, supramolecular assemblies of amphiphilic polymers containing benzenetrispeptide and benzenetrisureas motifs are inherently stable and non-dynamic at ambient conditions is shown, but dynamic exchange can be selectively activated. Stimulated emission depletion microscopy combined with automated image analysis revealed no dynamic exchange between complementary labeled fibers independent of the length of the hydrophobic domains at ambient conditions in pure water for several days. Competitive solvent addition facilitates dynamic exchange but compromises stability. Raising the temperature of the samples in pure water to 60 °C, however, induces similar dynamics while fiber stability is maintained. The amphiphilic character, in combination with the strong hydrogen bonds, seems to endow these supramolecular polymer brushes with unique switchable dynamics.
Further data
| Item Type: | Article in a journal |
|---|---|
| Keywords: | automated image analysis; dynamic exchange; nanofibers; self-assembly; STED-microscopy; supramolecular assembly |
| DDC Subjects: | 500 Science > 540 Chemistry |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I > Chair Macromolecular Chemistry I - Univ.-Prof. Dr. Johannes C. Brendel Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I |
| Language: | English |
| Originates at UBT: | Yes |
| URN: | urn:nbn:de:bvb:703-epub-9057-1 |
| Date Deposited: | 31 Mar 2026 11:34 |
| Last Modified: | 31 Mar 2026 11:35 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/9057 |
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