Hydrogen Production; New Frontiers of Hydrogen Energy Systems, Novel Approachesto Exploit Microbial Hydrogen Metabolism, Application of Hydrogenase for Renewable Energy Model Systems; Photosynthesis and Photobioreactor; Photo-Biological Hydrogen Production by the Uptakehydrogenase and PHB Synthase Deficient Mutant of Rhodobacter Sphaeroides, Hydrogen Production by Suspension and Immobilized Cultures of Phototrophic Microorganisms. Technological Aspects; Hydrogenase, The Potential of Using Cyanobacteria as Producers of Molecular Hydrogen Photobiological Hydrogen Production by Cyanobacteria Utilizing Nitrogenase Systems – Present Status and Future Development, Fundamentals and Limiting Processes of Biological Hydrogen Production; Bio Molecular Device The Isolation of Green Algal Strains with Outstanding H2-Productivity, Identification of a CIS-Acting Element Controlling Anaerobic Expression of the hydA Gene from Chlamydomonas Reinhardtii, Glycolipid Liquid Crystals as Novel Matrices for Membrane Protein Manipulations, Artificial Phytanyl-Chained Glycolipid Vesicle Membranes with Low Proton Permeability a Suitable for Proton Pump Reconstitution Matrices, Amphipols: Strategies for an Improved PS2 Environment in Detergent-Free Aqueous Solution, Monolayers and Longmuir-Blodgett Films of Photosystem I on Various Subphase Surfaces, Modular Device for Hydrogen Production: Optimization of (Individual) Components