TY - JOUR A1 - Federico, Stefania A1 - Pierce, Benjamin F. A1 - Piluso, Susanna A1 - Wischke, Christian A1 - Lendlein, Andreas A1 - Neffe, Axel T. T1 - Design of Decorin-Based Peptides That Bind to CollagenI and their Potential as Adhesion Moieties in Biomaterials JF - Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition N2 - Mimicking the binding epitopes of protein-protein interactions by using small peptides is important for generating modular biomimetic systems. A strategy is described for the design of such bioactive peptides without accessible structural data for the targeted interaction, and the effect of incorporating such adhesion peptides in complex biomaterial systems is demonstrated. The highly repetitive structure of decorin was analyzed to identify peptides that are representative of the inner and outer surface, and it was shown that only peptides based on the inner surface of decorin bind to collagen. The peptide with the highest binding affinity for collagenI, LHERHLNNN, served to slow down the diffusion of a conjugated dye in a collagen gel, while its dimer could physically crosslink collagen, thereby enhancing the elastic modulus of the gel by one order of magnitude. These results show the potential of the identified peptides for the design of biomaterials for applications in regenerative medicine. KW - biomaterials KW - collagen KW - gels KW - peptides KW - protein-protein interactions Y1 - 2015 U6 - https://doi.org/10.1002/anie.201505227 SN - 1433-7851 SN - 1521-3773 VL - 54 IS - 37 SP - 10980 EP - 10984 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Secker, Christian A1 - Brosnan, Sarah M. A1 - Luxenhofer, Robert A1 - Schlaad, Helmut T1 - Poly(alpha-Peptoid)s Revisited: Synthesis, Properties, and Use as Biomaterial JF - Macromolecular bioscience N2 - Polypeptoids have been of great interest in the polymer science community since the early half of the last century; however, they had been basically forgotten materials until the last decades in which they have enjoyed an exciting revival. In this mini-review, we focus on the recent developments in polypeptoid chemistry, with particular focus on polymers synthesized by the ring-opening polymerization (ROP) of amino acid N-carboxyanhydrides (NCAs). Specifically, we will review traditional monomer synthesis (such as Leuchs, Katchalski, and Kricheldorf) and recent advances in polymerization methods to yield both linear, cyclic, and functional polymers, solution and bulk thermal properties, and preliminary results on the use of polypeptoids as biomaterials (i.e immunogenicity, biodistribution, degradability, and drug delivery). KW - amino acid N-carboxyanhydride (NCA) KW - biomaterials KW - peptides KW - properties KW - ring-opening polymerization Y1 - 2015 U6 - https://doi.org/10.1002/mabi.201500023 SN - 1616-5187 SN - 1616-5195 VL - 15 IS - 7 SP - 881 EP - 891 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Haralampiev, Ivan A1 - Mertens, Monique A1 - Schwarzer, Roland A1 - Herrmann, Andreas A1 - Volkmer, Rudolf A1 - Wessig, Pablo A1 - Mueller, Peter T1 - Recruitment of SH-Containing peptides to lipid and biological membranes through the use of a palmitic acid functionalized with a Maleimide Group JF - Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition N2 - This study presents a novel and easily applicable approach to recruit sulfhydryl-containing biomolecules to membranes by using a palmitic acid which is functionalized with a maleimide group. Notably, this strategy can also be employed with preformed (biological) membranes. The applicability of the assay is demonstrated by characterizing the binding of a Rhodamine-labeled peptide to lipid and cellular membranes using methods of fluorescence spectroscopy, lifetime measurement, and microscopy. Our approach offers new possibilities for preparing biologically active liposomes and manipulating living cells. KW - liposomes KW - maleimide KW - membranes KW - palmitic acid KW - palmitoylation KW - peptides Y1 - 2015 U6 - https://doi.org/10.1002/anie.201408089 SN - 1433-7851 SN - 1521-3773 VL - 54 IS - 1 SP - 323 EP - 326 PB - Wiley-VCH CY - Weinheim ER -