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ePaper created 2017-03-14, 10:25:37 | version 1.49.03
Functional surfaces and materials For the surfaces of many materials e.g. industrial components or technical textiles, the desired properties are often different from those that are intrinsic for the bulk material. Fraunhofer IGB is decoupling volume and surface properties by interfacial process engineering. We give surfaces of polymers, ceramics or metals new properties by applying thin layers or creating deined functions on surfaces. For this purpose, we use gas phase processes (CVD, PVD, PECVD), wet-chemical processes or combined processes. For open-pored polymeric foams with functional groups, we developed a single-stage synthesis strategy. Fermentation and biocatalysis The goal of our work is to develop and optimize biotechnological (fermentative or biocatalytic) processes for the production of chemicals from renewable resources or biogenic residuals. In addition to mild reaction conditions and high speciicity, these offer a virtually inexhaustible product diversity. We are also able to achieve optimized transformation processes through coupling with chemical processes. Our range of services includes screening for new chemical catalysts, industrially useful enzymes and microorganisms (bacteria, fungi) as well as the devel- opment of production processes for ine and basic chemicals including scale-up and product processing. Biobased chemicals Fraunhofer IGB has successfully developed fermentation and puriication processes, for example, for C2 compounds (ethylene, acetic acid, ethanol) and C3 compounds (propylene, propanol, propanediol, propionic aid, lactic acid) as well as for dicarboxylic acids (malic acid and itaconic acid), amino acids and proteins such as thaumatin or bacteriorhodopsin. Based on renewable resources, algal lipids or biogenic residuals, we have successfully demonstrated new ways to produce basic materials (long-chain dicarboxylic acids, fatty acid epoxides, lactams) for plastics production. We have acknowledged expertise in the microbial production of biosurfac- tants for use as emulsiiers or detergents. 6 7