@article{QiuZhangBicketal.2021, author = {Qiu, Liang and Zhang, Haoran and Bick, Thomas and Martin, Johannes and Wendler, Petra and B{\"o}ker, Alexander and Glebe, Ulrich and Xing, Chengfen}, title = {Construction of highly ordered glyco-inside nano-assemblies through RAFT dispersion polymerization of galactose-decorated monomer}, series = {Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition}, volume = {60}, journal = {Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition}, number = {20}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1433-7851}, doi = {10.1002/anie.202015692}, pages = {11098 -- 11103}, year = {2021}, abstract = {Glyco-assemblies derived from amphiphilic sugar-decorated block copolymers (ASBCs) have emerged prominently due to their wide application, for example, in biomedicine and as drug carriers. However, to efficiently construct these glyco-assemblies is still a challenge. Herein, we report an efficient technology for the synthesis of glyco-inside nano-assemblies by utilizing RAFT polymerization of a galactose-decorated methacrylate for polymerization-induced self-assembly (PISA). Using this approach, a series of highly ordered glyco-inside nano-assemblies containing intermediate morphologies were fabricated by adjusting the length of the hydrophobic glycoblock and the polymerization solids content. A specific morphology of complex vesicles was captured during the PISA process and the formation mechanism is explained by the morphology of its precursor and intermediate. Thus, this method establishes a powerful route to fabricate glyco-assemblies with tunable morphologies and variable sizes, which is significant to enable the large-scale fabrication and wide application of glyco-assemblies.}, language = {en} } @article{BapolisiKielbBekiretal.2022, author = {Bapolisi, Alain Murhimalika and Kielb, Patrycja and Bekir, Marek and Lehnen, Anne-Catherine and Radon, Christin and Laroque, Sophie and Wendler, Petra and M{\"u}ller-Werkmeister, Henrike and Hartlieb, Matthias}, title = {Antimicrobial polymers of linear and bottlebrush architecture}, series = {Macromolecular rapid communications : publishing the newsletters of the European Polymer Federation}, volume = {43}, journal = {Macromolecular rapid communications : publishing the newsletters of the European Polymer Federation}, number = {19}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1521-3927}, doi = {10.1002/marc.202200288}, pages = {14}, year = {2022}, abstract = {Polymeric antimicrobial peptide mimics are a promising alternative for the future management of the daunting problems associated with antimicrobial resistance. However, the development of successful antimicrobial polymers (APs) requires careful control of factors such as amphiphilic balance, molecular weight, dispersity, sequence, and architecture. While most of the earlier developed APs focus on random linear copolymers, the development of APs with advanced architectures proves to be more potent. It is recently developed multivalent bottlebrush APs with improved antibacterial and hemocompatibility profiles, outperforming their linear counterparts. Understanding the rationale behind the outstanding biological activity of these newly developed antimicrobials is vital to further improving their performance. This work investigates the physicochemical properties governing the differences in activity between linear and bottlebrush architectures using various spectroscopic and microscopic techniques. Linear copolymers are more solvated, thermo-responsive, and possess facial amphiphilicity resulting in random aggregations when interacting with liposomes mimicking Escheria coli membranes. The bottlebrush copolymers adopt a more stable secondary conformation in aqueous solution in comparison to linear copolymers, conferring rapid and more specific binding mechanism to membranes. The advantageous physicochemical properties of the bottlebrush topology seem to be a determinant factor in the activity of these promising APs.}, language = {en} }