TY  - JOUR
A1  - Cataldi, Eleonora
A1  - Raschig, Martina
A1  - Gutmann, Marcus
A1  - Geppert, Patrick T.
A1  - Ruopp, Matthias
A1  - Schock, Marvin
A1  - Gerwe, Hubert
A1  - Bertermann, Rüdiger
A1  - Meinel, Lorenz
A1  - Finze, Maik
A1  - Nowak‐Król, Agnieszka
A1  - Decker, Michael
A1  - Lühmann, Tessa
T1  - Amber Light Control of Peptide Secondary Structure by a Perfluoroaromatic Azobenzene Photoswitch
JF  - ChemBioChem
N2  - The incorporation of photoswitches into the molecular structure of peptides and proteins enables their dynamic photocontrol in complex biological systems. Here, a perfluorinated azobenzene derivative triggered by amber light was site‐specifically conjugated to cysteines in a helical peptide by perfluoroarylation chemistry. In response to the photoisomerization (trans→cis) of the conjugated azobenzene with amber light, the secondary structure of the peptide was modulated from a disorganized into an amphiphilic helical structure.
KW  - amber light
KW  - decafluoroazobezene
KW  - peptide stapling
KW  - photocontrol
KW  - perfluoroarylation
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-312480
VL  - 24
IS  - 5
ER  - 
TY  - JOUR
A1  - Lorson, Thomas
A1  - Ruopp, Matthias
A1  - Nadernezhad, Ali
A1  - Eiber, Julia
A1  - Vogel, Ulrich
A1  - Jungst, Tomasz
A1  - Lühmann, Tessa
T1  - Sterilization Methods and Their Influence on Physicochemical Properties and Bioprinting of Alginate as a Bioink Component
JF  - ACS Omega
N2  - Bioprinting has emerged as a valuable threedimensional (3D) biomanufacturing method to fabricate complex hierarchical cell-containing constructs. Spanning from basic research to clinical translation, sterile starting materials are crucial. In this study, we present pharmacopeia compendial sterilization methods for the commonly used bioink component alginate. Autoclaving (sterilization in saturated steam) and sterile filtration followed by lyophilization as well as the pharmacopeia non-compendial method, ultraviolet (UV)-irradiation for disinfection, were assessed. The impact of the sterilization methods and their effects on physicochemical and rheological properties, bioprinting outcome, and sterilization efficiency of alginate were detailed. Only sterile filtration followed by lyophilization as the sterilization method retained alginate's physicochemical properties and bioprinting behavior while resulting in a sterile outcome. This set of methods provides a blueprint for the analysis of sterilization effects on the rheological and physicochemical pattern of bioink components and is easily adjustable for other polymers used in the field of biofabrication in the future.
KW  - hydrogels
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-229460
N1  - Lizenz: https://pubs.acs.org/page/policy/authorchoice_termsofuse.html
VL  - 5
IS  - 12
ER  -