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The aim of this thesis was to develop a new type of liquid-core capsules obtained by co-extrusion using the laminar jet break-up technique. These capsules, composed of an organic phase as the core and a hydrogel membrane, were meant to be applied as an in- ...
The molecular engineering of cell-instructive artificial extracellular matrices is a powerful means to control cell behavior and enable complex processes of tissue formation and regeneration. This work reports on a novel method to produce such smart biomat ...
A postulated biogenesis forms the basis for a synthetic route to the natural product anachelin H. Key steps include a tellurium-mediated, oxidative aza annulation and a Claisen condensation under mild conditions. Experiments with a model substrate indicate ...
The c-locus of the mouse is thought to encode tyrosinase, the key enzyme for melanin synthesis in melanocytes of the skin and the eye. Recently, a mouse cDNA was isolated and shown to confer tyrosine activity on a cell line which expressed no specialized f ...
Bicyclic peptides binding to targets of interest can be isolated from combinatorial libraries using a phage display-based approach. In a first project of this thesis, we aimed at generating bicyclic peptide inhibitors of matrix metalloproteinases (MMPs), a ...
The complex secondary metabolite anachelin, isolated from the freshwater cyanobacterium Anabaena cylindrica, is believed to act as siderophore, facilitating iron uptake. Its structure is characterized by a fascinating blend of polyketide, peptide, and alka ...
Current evidence suggests that melanogenesis is controlled by epidermal paracrine modulators. We have analyzed the effects of transforming growth factor-beta1 (TGF-beta1) on the basal melanogenic activities of B16/F10 mouse melanoma cells. TGF-beta1 treatm ...
Vibrio and Aeromonas spp. secrete an unusual 35-kDa lipase that shares several properties with mammalian lecithin-cholesterol acyltransferase. The Aeromonas hydrophila lipase contains two cysteine residues that form an intramolecular disulfide bridge. Here ...
