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Synthese von Ester- und Etherlipiden durch die GPAT/AGPAT-Proteinfamilie und Lipin in Dictyostelium
The synthesis of glycerolipids starts with the acylation of lipid backbones. Two structurally different glycerolipids emerge in the cell: ether-lipids and ester-lipids. In the case of ether-lipids the first fatty acid is substituted with a fatty alcohol inside the peroxisome. By the characterization of the protein FARAT in this thesis, a key enzyme in etherlipid-synthesis was identified for D. discoideum. FARAT shows a peroxisomal localization and is in principle able to do two jobs. Firstly, it initiates the peroxisomal ...
High temperature-stable InGaAs QDs for the monolithic integration in external-cavity surface-emitting lasers
Optically pumped vertical external-cavity surface-emitting lasers (VECSELs), also called semiconductor disk lasers (SDLs), benefit from the flexibility and versatility of the semiconductor material. With a simple cavity layout, fundamental transverse mode operation with a circular output beam and high beam quality is possible. They have excellent heat-sink properties and only require inexpensive multimode diode lasers for pumping. The complete VECSEL structure is only a few micrometers thick which leads to a strong ...