Fakultät für Chemie und Pharmazie
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Institute
- Fakultät für Chemie und Pharmazie (44)
- Abteilung für Funktionswerkstoffe der Medizin und der Zahnheilkunde (10)
- Graduate School of Life Sciences (5)
- Institut für Pharmazie und Lebensmittelchemie (2)
- Fakultät für Physik und Astronomie (1)
- Graduate School of Science and Technology (1)
- Institut für Organische Chemie (1)
- Institut für Pharmakologie und Toxikologie (1)
- Klinik und Polikliniken für Zahn-, Mund- und Kieferkrankheiten (1)
- Theodor-Boveri-Institut für Biowissenschaften (1)
Sonstige beteiligte Institutionen
- Fraunhofer-Institut für Silicatforschung ISC (2)
- Fraunhofer Institute for Silicate Research ISC in Würzburg (1)
- Fraunhofer-Institut für Silicatforschung (ISC) in Würzburg (1)
- Institut für Optik und Atomare Physik, Technische Universität Berlin, 10623 Berlin, Germany (1)
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan (1)
- SKZ – Das Kunststoff-Zentrum (1)
ResearcherID
EU-Project number / Contract (GA) number
- 646737 (1)
The development of controlled biodegradable materials is of fundamental importance in immunodrug delivery to spatiotemporally controlled immune stimulation but avoid systemic inflammatory side effects. Based on this, polycarbonate nanogels are developed as degradable micellar carriers for transient immunoactivation of lymph nodes. An imidazoquinoline‐type TLR7/8 agonist is covalently conjugated via reactive ester chemistry to these nanocarriers. The nanogels not only provide access to complete disintegration by the hydrolysable polymer backbone, but also demonstrate a gradual disintegration within several days at physiological conditions (PBS, pH 6.4–7.4, 37 °C). These intrinsic properties limit the lifetime of the carriers but their payload can still be successfully leveraged for immunological studies in vitro on primary immune cells as well as in vivo. For the latter, a spatiotemporal control of immune cell activation in the draining lymph node is found after subcutaneous injection. Overall, these features render polycarbonate nanogels a promising delivery system for transient activation of the immune system in lymph nodes and may consequently become very attractive for further development toward vaccination or cancer immunotherapy. Due to the intrinsic biodegradability combined with the high chemical control during the manufacturing process, these polycarbonate‐based nanogels may also be of great importance for clinical translation.
Der Vernetzungsgrad von Klebstoffen und strahlenvernetzter Kunststoffformteile beeinflusst zahlreiche Materialeigenschaften und ist von essenzieller Bedeutung für die Funktionalität von Klebeverbindungen und die Beständigkeit medizinischer Implantate.
Die zerstörungsfreie Prüfung dieser Qualitätsgröße ist von großem industriellem Interesse, aber noch nicht Stand der Technik. Die unilaterale Kernspinresonanz (uNMR) ist ein vielversprechendes Verfahren zur Lösung dieser Problematik.
In diesem Buch wird die nicht-invasive Vernetzungsgradprüfung von strahlenvernetztem UHMWPE und verschiedenen Klebstoffen mittels uNMR demonstriert. Auf Basis der guten Korrelation mit praxisrelevanten Referenzmethoden (thermisch, rheologisch, dielektrisch) wurden Vergleichsmodelle entwickelt, welche Anwendern von Klebstoffen und vernetzten Kunststoffformteilen den Einsatz der uNMR zur zerstörungsfreien Qualitätssicherung ermöglichen.
No abstract available.
In this work, a toolbox was provided to create three-component polymer conjugates with a defined architecture, designed to bear different biocomponents that can interact with larger biological systems in biomacromolecular recognition experiments. The target architecture is the attachment of two biomolecule ‘arms’ to the alpha telechelic end point of a polymer and fixating the conjugate to the gold surface of SAW and SPR sensor chips with the polymer’s other omega chain end. This specific design of a conjugate will be implemented by using a strategy to yield novel double alpha as well as omega telechelic functionalized POx and the success of all cascade reaction steps leading to the final conjugation product will be proven through affinity measurements between covalently bound mannose and ConA. All reactions were performed on a low molecular model level first and then transferred to telechelic and also side chain functionalized polymer systems.