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.
Buffer memory for combined cycle (CC) power plants
31.03.2015 | TechnologieAllianz e.V.
Induced Somatic Stem Cells - Reprogramming of somatic cells to neural stem cells
13.05.2015 | TechnologieAllianz e.V.
Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical conductors, which uncouple the electrical signal in a highly efficient manner. The scientists at the Department of Physics and the Swiss Nanoscience Institute at the University of Basel have published their results in the scientific journal “Nature Communications” together with their colleagues from ETH Zurich.
Electronic components are becoming smaller and smaller. Components measuring just a few nanometers – the size of around ten atoms – are already being produced...
Development and implementation of an advanced automobile parking navigation platform for parking services
To fulfill the requirements of the industry, PolyU researchers developed the Advanced Automobile Parking Navigation Platform, which includes smart devices,...
The world's first electrical car and passenger ferry powered by batteries has entered service in Norway. The ferry only uses 150 kWh per route, which...
On Tuesday, 19 May 2015 the research icebreaker Polarstern will leave its home port in Bremerhaven, setting a course for the Arctic. Led by Dr Ilka Peeken from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) a team of 53 researchers from 11 countries will investigate the effects of climate change in the Arctic, from the surface ice floes down to the seafloor.
RV Polarstern will enter the sea-ice zone north of Spitsbergen. Covering two shallow regions on their way to deeper waters, the scientists on board will focus...
Nanoengineers at the University of California, San Diego developed a gel filled with toxin-absorbing nanosponges that could lead to an effective treatment for skin and wound infections caused by MRSA (methicillin-resistant Staphylococcus aureus), an antibiotic-resistant bacteria. This "nanosponge-hydrogel" minimized the growth of skin lesions on mice infected with MRSA - without the use of antibiotics. The researchers recently published their findings online in Advanced Materials.
To make the nanosponge-hydrogel, the team mixed nanosponges, which are nanoparticles that absorb dangerous toxins produced by MRSA, E. coli and other...
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