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Chemistry



Results 1 - 20 of 339.
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Health - Chemistry - 13:12
Tailor-made Metal Complexes for Medical Diagnostics and Therapy
Tailor-made Metal Complexes for Medical Diagnostics and Therapy
Heidelberg chemists study manganese, lutetium, and actinium compounds for potential applications in medicine Tailor-made chemical complexes of certain elements from the group of metals could be suitable for use in a special way in medical imaging as well as potential applications in personalised precision medicine.

History / Archeology - Chemistry - 01.02.2023
The chemistry of mummification - Traces of a global network
The chemistry of mummification - Traces of a global network
Analyzing the residue on vessels in a mummification workshop has given a team of researchers from LMU Munich and the University of fresh insights into how the ancient Egyptians embalmed the bodies of their dead. The archeologists have been able to determine what substances were used for which part of the body.

Life Sciences - Chemistry - 26.01.2023
Evolutionary Tuning of a Cellular 'Powerhouse'
Evolutionary Tuning of a Cellular ’Powerhouse’
Researchers in Freiburg and Bonn provide the first comprehensive mapping of the protein machineries in the mitochondria, the powerhouses of the cell Mitochondria are membrane-enclosed structures found in all cells of higher organisms, where they produce most of the necessary energy ("powerhouses of the cell").

Life Sciences - Chemistry - 26.01.2023
Evolutionary tuning of a cellular 'power plant'
Evolutionary tuning of a cellular ’power plant’
Researchers from Freiburg and Bonn succeed in the first comprehensive description of the protein machines in the mitochondria, the power plants of the cell. Mitochondria are membrane-enveloped structures found in all cells of higher organisms, where they produce most of the necessary energy ("power plants of the cell").

Health - Chemistry - 24.01.2023
Actin affects the spread of cancer in several ways
The transport of molecules along the cell's skeleton plays a role in cancer metastasis, Freiburg researchers show Metastases occur when cancer cells leave a primary tumor and spread throughout the body. For this, they have to break connections with neighboring cells and migrate to other tissues. Both processes are promoted by signalling molecules released by the cancer cells, which thereby increase the malignancy of tumors.

Physics - Chemistry - 23.01.2023
Colour images from the shadow of a sample
Colour images from the shadow of a sample
Researchers at Göttingen University develop new method for X-ray colour imaging A research team at the University of Göttingen has developed a new method to produce X-ray images in colour. In the past, the only way to determine the chemical composition of a sample and the position of its components using X-ray fluorescence analysis was to focus the X-rays and scan the whole sample.

Physics - Chemistry - 20.01.2023
Physical effect also valid in the quantum world
Physical effect also valid in the quantum world
Researchers at the University of Bonn confirm validity of a central theorem of physics for Bose-Einstein condensates Physicists at the University of Bonn have experimentally proven that an important theorem of statistical physics applies to so-called "Bose-Einstein condensates." Their results now make it possible to measure certain properties of the quantum "superparticles" and deduce system characteristics that would otherwise be difficult to observe.

Materials Science - Chemistry - 10.01.2023
Customized Electrolyte Additives Boost Battery Cell Performance
Phosphazene-Based Electrolyte Additives Stabilize Silicon-Based Lithium-Ion Batteries Silicon (Si) is considered a promising anode material in next-generation lithium-ion batteries (LIB). Its practical application has so far been hindered by challenges such as capacity losses during battery operation.

Life Sciences - Chemistry - 05.01.2023
Formation of pores in mitochondrial membrane elucidated
Formation of pores in mitochondrial membrane elucidated
Study by a team of researchers from Freiburg and Kyoto investigates formation of beta-barrel membrane proteins that make up the pores Mitochondria are considered to be the power plants of cells and are essential for human metabolism. Dysfunction in 40 percent of mitochondrial proteins are associated with human diseases, which is why mitochondria also play an important role in medical research.

Chemistry - Life Sciences - 21.12.2022
'A lot of work was invested before I was able to control these reactions'
’A lot of work was invested before I was able to control these reactions’
Dr Charlotte Teschers has developed an automated method for producing -glycomimetics- One project, one researcher and five years of intensive work: as part of her doctoral thesis, supervised by Prof. Ryan Gilmour at the Institute of Organic Chemistry, Dr. Charlotte Teschers has successfully developed a new method of producing complex, fluorinated sugars.

Chemistry - Physics - 08.12.2022
New way to produce important molecular entity
New way to produce important molecular entity
Chemists at the University of Münster develop method for simple production of vicinal diamines Among the most common structures relevant to the function of biologically active molecules, natural products and drugs are so-called vicinal diamines - in particular, unsymmetrically constructed diamines. Vicinal diamines contain two functional atomic groups responsible for the substance properties, each with a nitrogen atom bonded to two neighbouring carbon atoms.

Chemistry - Physics - 08.12.2022
New Scientific Finding: Light Can Be Used to Control Molecular Handedness
Researchers at Freie Universität Berlin took part in a new study on chiral molecules recently published in "Science Advances" In a recent study, researchers at Freie Universität Berlin, the DESY research center in Hamburg, Kiel University, and Kansas State University have shown how light can turn a planar molecule into a chiral molecule with just one particular handedness, providing a solution to the long-standing problem of absolute asymmetric synthesis.

Life Sciences - Chemistry - 05.12.2022
Two-billion-year-old enzyme reconstructed
Two-billion-year-old enzyme reconstructed
Basic researchers at Leipzig University have solved a puzzle in the evolution of bacterial enzymes. By reconstructing a candidate for a special RNA polymerase as it existed about two billion years ago, they were able to explain a hitherto puzzling property of the corresponding modern enzymes. Unlike their ancestors, they do not work continuously and are thus significantly more effective - these pauses in activity constitute evolutionary progress.

Physics - Chemistry - 22.11.2022
Elusive carbonic acid: it really exists!
Elusive carbonic acid: it really exists!
Neutrons from FRM II expose crystal structure of carbonic acid The existence of carbonic acid has long been the subject of debate: theoretically real, but practically impossible to detect. That is because the compound decomposes at the Earth's surface. A German-Chinese team of researchers working at the FRM II Research Neutron Source at the Technical University of Munich (TUM) has now made the crystalline structure of carbonic acid molecules visible for the first time.

Chemistry - Physics - 17.11.2022
Problem solved in organic chemistry
Problem solved in organic chemistry
In chemicals used in agriculture, as well as in pharmaceuticals and a variety of materials, pyridines are often found as so-called functional units which decisively determine the chemical properties of substances. Pyridines belong to the group of ring-shaped carbon-hydrogen (C'H) compounds ("heterocycles"), and they contain a nitrogen atom (N).

Pharmacology - Chemistry - 16.11.2022
Urine reveals our eating habits
Urine reveals our eating habits
We already know that a urine test can establish whether someone has an infection of the urinary tract or has taken illegal drugs. But there are lots more traces to be found in urine - if you know how to read them. Developing and refining techniques to get pointers to a person's eating habits or to harmful substances in their urine is one of the pet projects being pursued by food chemist Prof. Hans-Ulrich Humpf and his working group at the University of Münster.

Chemistry - Environment - 02.11.2022
Iodine accelerates formation of cloud condensation nuclei in the atmosphere
Iodine accelerates formation of cloud condensation nuclei in the atmosphere
International research team reports effect of iodine-organic chemistry on the generation of new particles in the marine atmosphere and the recycling of iodine during particle growth The natural cycles of exchange of substances between the biosphere and the atmosphere are of major relevance to the Earth's climatic system.

Chemistry - 31.10.2022
In Search of Earth’s Building Blocks
Two international research teams, including scientists from Freie Universität, have independently shown that the Earth partly consists of material that cannot be explained by known meteorite compositions. The studies appeared in Nature and Science. The most common type of meteorites that fall onto Earth are called chondrites, which represent little modified aggregates of dust from the early solar nebula.

Life Sciences - Chemistry - 27.10.2022
Inspired by nature: Silencing bacteria
Inspired by nature: Silencing bacteria
Cerium dioxide nanoparticles work in biological processes like natural enzymes and change signaling molecules, thereby preventing the formation of biofilms 27 October 2022 Bacteria love moist surfaces. Once they have settled there, they do not live as solitary organisms but form larger communities that are embedded in a protective film.

Physics - Chemistry - 26.10.2022
Using chirality for faster, smaller, and more efficient data storage devices
Using chirality for faster, smaller, and more efficient data storage devices
Mainz University succeeds in the first round of the new Carl Zeiss Foundation Wildcard program / Researchers present an innovative approach for enhancing electronic devices 26 October 2022 Researcher
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