Scientists from Goethe University of Frankfurt/Main synthesized novel arylborane compounds with extraordinary electronic, chemical, and optical properties. The novel blue fluorescent dyes are well suited for use in organic light emitting diodes (OLEDs).
The novel class of fluorophores with high quantum efficiencies is built around a pyrazole unit. These compounds exhibit emission maxima at around 380 nm. Additionally to high quantum efficiency and chemical resistance, the molecules provide a polar anchoring group enabling straightforward substrate attachment.
The invention provides the switching of magnetic properties in isolated (magnetically non–interacting) molecules in solution. Switching from the diamagnetic to the paramagnetic state is performed by irradiation with blue‐green light (500 nm), and the conversion back to the diamagnetic form is induced with blue‐violet light (435 nm). The process is fully reversible. No fatigue or degradation is observed after several thousand cycles at room temperature under air. In spite of the extremely high photosensitivity, the thermal conversion of the high energy paramagnetic state to the diamagnetic ground state is very slow (t1/2 at 54°C: 27 hours).
The invention can be used as optical storage media, switchable contrast agent for magnetic resonance imaging (dynamic MRI) and for contact free manipulation of objects.
A new family of layered titanates containing chemically bound unsaturated amine enables the fixation and immobilization of radioactive iodine-129 and iodine-131 from gaseous products of nuclear fission.
A new family of titanates, niobates and tantalates containing chemically bound functional multivalent polyamines enables surface binding of nucleic acids.
Adhesive microstructure of surfaces: anisotropic attraction generated by isotropic –easy to produce- components.
A great disadvantage in using hydrazine is the problem that hydrazine is highly toxic and dangerously unstable, especially in the anhydrous form. The Invention: A new family of hydrazine titanates, called LHT-9 (Layered Hydrazinium Titanate – 9 Å) containing chemically bound hydrazine (hydrazinium ion) intercalated into the interlayer space of the layered titanate dissolving this problem.
The LHT-9 can be used as:
• Carrier substances (chemical containers) containing chemically bound hydrazine and thus allowing to retrieve hydrazine and its compounds, including as possible sources of hydrazine for direct hydrazine fuel cells
• Matrices for carrying out inorganic, organic and bioorganic syntheses. Chemically bound hydrazine is used as active constituent
• Ion-exchange materials
• Reductive sorbents for recovery of noble metals (Rh, Pd, Pt, Au, Ir, Ag) from different industrial solutions
• Reluctant for reduction of U, Pu, Np and Tc in spent nuclear fuel;
• Precursors for preparation of composite nano-materials, including TiO2-Se nano-composites for Hg vapor scavenging.
Agile, driven wrist joint with three rotational degrees of freedom: The invention describes a new kind of driven joint, using a specific arrangement of (bevel) gears and motors, which, in combination with a C-shaped rail allow for an energy efficient and accurate usage while having significantly less difficulties with singularities.
Scientists at the University of Göttingen produced different monoclonal antibodies directed against the rat CD88 cell surface receptor, also known as C5aR. C5aR functions as a receptor for the C5a fragment of the complement factor C5. These antibodies can be used to identify C5aR in tissues or cultured cells.
Scientists at the University of Göttingen developed different monoclonal antibodies directed against the human / rat C3a-receptor. C3aR functions as a receptor for the C3a fragment of the complement factor C3, but also binds C4a. C3a binding to the C3a-receptor causes mast cell degranulation (anaphylatoxin).
Background
Using the electroporation process, electrical pulses create pores that allow genetic material to permeate the bacterial membrane of electrocompetent cells. The limiting factor for this standard laboratory method is the efficiency by which DNA can be introduced into E. coli. Commercially available electrocompetent cells are being delivered frozen at about -70 to -80°C. The conventional wisdom is that storage at a higher temperature, for example at -20°C or higher, will result in a significant decrease in viability and transformation efficiency.
Invention
Inventors of Saarland University have established a new method and created a new bacterial strain to generate electrocompetent bacterial cells with a transformation efficiency of up to 5,6 x 1010, which can be handled at room temperature. This electrocompetent cells can be stored at 4°C without losing transformation efficiency. Also the new established protocol is able to improve the transformation efficiencies of commercially available bacterial cells.
The invention can be used for cutting high-strength materials, e. g. during disassembly of nuclear power plants, in under water or offshore applications. Benefits: Immediate start or stop the cutting operation possible; davings of abrasive suspension and time; efficiency improvement.
The technology consists of a new algorithm for the control of the charging pressure in turbocharged engines. It enables a secure and efficient usage of the engine without need for additional cost intensive parts. It is highly suitable for all kinds of internal combustion engines in all classes.
Acoustic measurements are often subject to unwanted background noise, which compromise the validity of noise measurements. By using a statistical prediction model the invention automatically identifies the disturbed sections and then systematically suppresses these areas in the level detection. In contrast to the frequently used method of percentile ranks the inventive method is not fixed to fixed proportions of background noise.
This invention for the examination of metallic nanoparticles in a sample exploits the plasmonic properties of metals. A metal tip with a Raman-active coating is used as a sensor to converge on the particle to be examined. The tip and particle form a resonator structure in the case of a metallic nanoparticle. This resonator structure causes the Raman signal belonging to the sensor coating to be amplified and thus enables the metallic particle to be identified under normal conditions.
This is a device for patients self-determination of implanted cardioverter-defibrillators (ICD) therapy delivery. Depending on symptoms of the patient, he can decide himself to abort or delay ICD-therapy and thereby effectively
prevent inappropriate ICD therapy.
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