Photoautotrophic organisms use solar radiation to carry out metabolic processes. Phototrophs store the produced energy as chemical energy by the formation of chemical bonds. Most of the photoautotrophic organisms also perform photosynthesis and convert carbon dioxide into organic material (e.g. sugars and fats). Therefore they can be used for the industrial production of biomass. Biomass production has become increasingly interesting in the biofuel or food industry.<br><br> <strong>Technology</strong><br> A highly efficient photobioreactor for growing and harvesting photoautotrophic organisms like the cyanobacterium Synechocystis sp. PCC6803 is presented. The photobioreactor has a gas-tight transparent housing, a gas exhaust and at least two compartments containing the photoautotrophic organisms and the nutrient solution for the phototrophs, respectively. The nutrient solution consists of a highly concentrated mineral carbon medium (e.g. sodium hydrogen carbonate solution) which acts as buffer medium at the same time. The photosynthetic compartment containing the phototrophic organisms is a thin layer (~ 10 mm) which is separated from the nutrient solution by a transparent semipermeable membrane. Thus, the diffusion of the nutrient solution into the photosynthetic compartment creates no turbulences as it would be in case of bubbling CO2 through the bioreactor. This diffusive feeding process results in high growth rates and efficient biomass production. <br><br>
firstname.lastname@example.org | TechnologieAllianz e.V.
High-throughput screening system for directed evolution experiments using novel compartments
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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