The invention describes a process for the production of fiber-
reinforced aluminum foam. The composite has advantages
compared to the non-reinforced foam like higher mechanical
properties and greater stiffness. By the fibers the influence of
the non-homogeneous pore distribution can be reduced. Withe
respective reinforcement fibers the energy absorption can be
increased to without increasing the global density.
By implementing an axial hydro cyclone desilting can be done within the pressure pipe of hydropower plants.
The device produces a heavy swirling flow, the particles are carried radially outwards due to the centrifugal force and extracted after a short pathway.
The development of receptor tyrosine-kinase inhibitors (TKIs) in recent decades was a major step forward in cancer treatment. However, despite their clinical efficacy, therapy with TKIs is limited by strong side effects (such as skin rash) and development of resistance. New approaches are required
to overcome these drawbacks. Complexing the TK Inhibitor with Cobalt (Co3+) inactivates the inhibitor until it is released under the hypoxic conditions in the target tumour tissue. This approach promises effective treatment with considerably limited side effects. These complexes can be used as an alternative to existing
Epidermal Growth Factor Receptor (EGFR) Inhibitors, and were effective in tumour cells that have become resistant to conventional Treatments due to EGFR mutations like T790M.
The bone drilling apparatus effectively prevents overheating of the bone tissue by individually adjusting the coolant supply to the heat developed during a procedure. It implements a real-time measurement device, drill and regulating device for the coolant
pumping system.
This new 2D-actuator enables ultrasonic assisted drilling, milling or grinding of brittle-hard materials like ceramic, glass, silicium carbides or hardened
steel. It can be used in combination with existing machining centres. Operating at low frequency it allows the compensation of thermal and geometric faults at the workpiece as well.
The human integrin avß6, which is usually undetectable in normal adults’ cells, but highly upregulated in different types of cancer, is an emerging target for therapy as well as imaging across several common tumor types. However, only few ligands are known so far that are highly active for avß6 integrin and at the same time possess no binding affinity toward other RGD-recognizing integrins. Furthermore, their metabolic instability, their high molecular weight and the complexity of their structures limit their medical application.
This problem could now be solved by the present invention. The peptides according to the invention show a remarkable affinity for avß6 and high selectivity against other integrins.
One important biosynthetic precursor of fatty alcohols is hydroxyalkanoyloxy alkanoic acid (HAA). HAA can be produced by microbes using sugars as substrate. Currently, no commercial production of HAA is established in the art and only few literature exist
that relates to HAA production. Due to their amphiphilic nature, HAA can be used as biosurfactant on one hand and as a precursor for the synthesis of alkanes, which can be used as fuel especially aviation fuel on the other hand.
The present invention provides a novel procedure for a selective and quantitative (> 1g/L) production of HAAs from biotechnological process engineering.
Industrial relevant strains like P. putida and E. coli have been tested and specific chain lengths of HAAs (short or long) can be obtained via direct product secretion into the media. Within one day, already 40% of theoretical product (in view of glucose as C-source) can be achieved.
On behalf of the University of Aachen, PROvendis offers access to rights for commercial use as well as the opportunity for further co-development.
For the production of rechargeable batteries, it is desirable to use silicon as anode material in Li-ion batteries. The use of silicon anodes theoretically increases battery capacity tenfold compared to conventional graphite anodes. However, the attempt had previously failed, since the layers would expand by 300 to 400 % due to the storage of lithium ions in the Si bulk material. This induces a high residual strain and can destroy the bulk Si after only a few charge cycles. In addition, as a consequence of the irreversible reaction between the Si anode and electrolyte a layer of solid electrolyte interphase (SEI) can develop and lead to a low coulombic efficiency.
Scientists of the University of Stuttgart now succeeded in developing a porous semiconductor layer, which displays a pore distribution from 50 to 3000 nm and eliminates the residual strain. It can be manufactured in a continuous process.
The present technology improves immunogenicity by treating DCs during maturation with the fungal-derived enzyme galactose oxidase. Hereby, a stronger physical interaction between DCs and T cells is achieved resulting in an at least 10-fold improved T cell priming capacity. In cell culture assays both human and mouse DCs showed enhanced T cell priming potential, the murine cells also in vivo.
Even the T cell stimulatory potential of mature DCs that were putatively activated up to a maximum was further improved by the galactose oxidase treatment. Hence, low affine T lymphocytes, as often found in the context of tumor antigens, can be activated and brought to proliferation too.
By improving T cell priming capability and therefore immunogenicity, this technology provides the opportunity to markedly enhance the classical DC maturation and accordingly to improve DC-vaccine approaches for example in tumor or HIV patients.
This invention is a process for detecting salmonellae as well as a fluorescing detection molecule that can be used for detecting salmonellae. This procedure enables the rapid, sensitive, and specific detection of salmonellae. A major advantage of this invented technology is that the salmonellae biosensor described here requires no additional devices aside from a fluorescence reading device, and does not require any specially trained technical experts.
This process enables the production of functional fusion tissue of various sizes. One advantage over previous procedures is that it generates larger fusion tissue that is also improved in its differentiation and functionality. The invented fusion tissue is also suitable for screening for new substances, to test substances, to improve or validate known therapeutic substances, or to create new indications and applications for known substances.
Background
Biocatalysts that can perform stereo- and regioselective hydroxylation of steroids are of great interest, since these molecules are among the most strongly marketed compounds of the pharmaceutical industry.
Especially the human metabolites 16-ß-OH-Testosterone and Androstendion are desired products, as they have a wide application as food, dietary supplements and medical products or in terms of diagnostics.
Testosterone can be metabolized by various human microsomal cytochrome P450 systems to the corresponding 16-ß-OH metabolite. So far, these enzymes are not capable of a regio- and stereoselective hydroxylation of testosterone. More than that, mammalian P450 systems are characterized by low stability and activity as well as an unpleasant expression level when compared to bacterial P450 systems.
Invention
Biochemists and pharmaceutical biologists of Saarland University have developed an effective recombinant biotransformation system based on a Bacillus megaterium strain that is capable of performing both stereo- and regioselective hydroxylation of non-activated carbon atoms of testosterone giving rise to 16-ß-OH-Testosterone in one step. The biocatalyst can further be applied in the synthesis of Androstendion using testosterone as a starting material.
Advantages
• Very fast and cost-efficient synthesis of steroid derivatives
• One step transformation of testosterone into 16-ß-OH testosterone
• No side products
• High yield
Background
The biotechnological production of 25-OH Vitamin D3 is of great importance, as this inactivated position 25 within vitamin D3 is hardly achievable by means of organic synthesis, especially in terms of a regio- and stereoselective manner.
Within the human body, 25-OH vitamin D3 is converted into the biological active form of vitamin D3 which is important for the Ca2+ deposit into bones. Furthermore, in case of hepatic cirrhosis, its substitution is essential. It has anti-carcinogenic effects and acts protective in terms of autoimmune and cardiovascular diseases.
25-OH vitamin D3 is also used as a standard in clinical laboratory diagnostics. Altogether, 25-OH vitamin D3 is valuable concerning biotechnology, pharmacy and medicine.
Invention
Biochemists of Saarland University identified and optimized two cytochrome P450 systems which are capable of performing a regio- and stereoselective hydroxylation of vitamin D3 in one step, transferring vitamin D3 to 25-OH and other hydroxyl- derivatives of vitamin D3. The enzymes belong to the CYP109 family.
One of these enzymes is capable of synthesizing 25-OH vitamin D3 as a major product and three side products in vitro producing a yield of 26 mg/l/24h.
The second one gives rise to 25-OH vitamin D3 as the only product producing a yield of 5 mg/l/24h.
Advantages
• Synthesis of 25-OH vitamin D3 and other hydroxyl-derivatives in high yields
o 25-OH vitamin D3 and three side products→ 26 mg/l/24h
o 25-OH vitamin D3 → 5 mg/l/24h
• Low production costs
• No toxic side products as in classical organic synthesis
In freeze substitution the water content in biological samples is replaced with a solvent (usually acetone or methanol) and is a notoriously slow technique. This invention significantly reduces the duration by agitating samples during the process.
Glutathione S-transferase P1 (GSTP1), applied as a recombinant protein, shows powerful longterm cardioprotective effects in a rat model for
myocardial infarction after a single application within 2 hours after infarction.
Biotechnological expression of highly active proteins or small chemical compounds of pharmaceutical relevance is often difficult. Many proteins or molecules of interest (POIs/MOIs) have cytotoxic side effects and interfere with the host’s metabolism. The invention provides a versatile tool – based on a low-temperature inducible protein accumulation system (lt-degron) – and methods to generate so-called ‘phenotypes on demand’ for the production of POIs/MOIs in a spatial and time-dependent manner ensuring proper posttranslational modifications. For the first time, it has been adopted to multicellular organisms like insects and intact plants in vivo.
Feedback
