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New Ribozyme for Exploring the World of RNA
Researchers produce polymers from ballbot-type carbenes for the first time
The flavor secrets of sourdough bread decoded
Light regulates structural conversion of chiral molecules
Sharing chemical knowledge between human and machine
Non-toxic cleaner developed for paintings
Electricity driving life
Accurate data on dynamic molecular aggregates in cells for the first time
Researchers ’film’ novel catalyst at work
Freiburg research team casts light on signal-dependent formation of mitochondria
Thousands of protein switches enable plants to make the transition from dark to light
Tracing invisible particles
High-performance digital system for the design of customized polymers
Chemists develop reaction cascade to produce fluorinated molecules
Chemists develop new process for the production of ring-shaped molecules
Helping plants make better use of sunlight
Process for bio-based nylon
Evaporative Cooling of Anions
Chemistry
Results 21 - 40 of 86.
Chemistry - Physics - 15.09.2023
Precisely arranging nanoparticles
Research team at Göttingen University develops plasmonic molecules from nanoparticles In the incredibly small world of molecules, the elementary building blocks - the atoms - join together in a very regular pattern. In contrast, in the macroscopic world with its larger particles, there is much greater disorder when particles connect.
Chemistry - Life Sciences - 04.09.2023

Important progress for RNA research: A team led by Würzburg chemistry professor Claudia Höbartner has discovered a new ribozyme that can label RNA molecules in living cells. RNA molecules are real all-rounders. They transfer the genetic information from the DNA in the cell. They regulate the activity of genes.
Chemistry - Physics - 28.08.2023

Chemical on-surface synthesis under extremely clean conditions permits controlled synthesis of N'heterocyclic ballbot-type polymers N'heterocyclic carbenes (NHCs) are small, reactive ring molecules which bond well with metallic surfaces and which, over the past few years, have attracted a great deal of interest in the field of the stable chemical modification of metallic surfaces.
Chemistry - 28.08.2023

Ten key tastants and eleven odors Researchers at the Technical University of Munich (TUM) have succeeded in decoding the flavor and aroma of sourdough bread. Their measurements and analyses at the molecular level revealed ten key tastants, and eleven key aroma odorants, which could be used to reproduce the characteristic essence of sourdough breadcrumb.
Chemistry - 23.08.2023

Chemists from the University of Münster publish new study in -Nature- Just like our hands, certain organic molecules relate to each other like an image and its reflection - a phenomenon that chemists call "chirality" or "handedness". The two mirror images of the same molecule, namely both enantiomers, often possess different biological properties.
Chemistry - Computer Science - 22.08.2023

Knowledge Transfer and Innovation Published: Researchers from the University of Jena, the Westphalian University of Applied Sciences and the University of Chemistry and Technology Prague have developed a platform that uses artificial neural networks to translate chemical structural formulae into machine-readable form.
Chemistry - Physics - 17.08.2023

Organogels: New cleaning agent for artworks investigated with neutrons at the FRM II The restoration of artworks often involves solvents which have toxic properties. Now researchers have succeeded for the first time in creating a non-toxic and sustainable cleaning agent for paintings. Scientists at the Technical University of Munich (TUM) Research Neutron Source Heinz Maier-Leibnitz (FRM II) investigated the structure of the agent, referred to as an organogel.
Life Sciences - Chemistry - 16.08.2023

Using a metabolic pathway, energy-rich resources can be produced via the power of electricity When nature performs chemical reactions to create energy-rich compounds from simple molecules, it requires energy. So far, it has not been possible to use human-made electricity to drive these biochemical processes.
Life Sciences - Chemistry - 15.08.2023

Using a newly developed microscopy method, researchers from Freiburg and Cambridge have been able to quantify how small, dynamic molecular aggregates form in living cells for the first time. Such aggregates play an important role in signal processing In cells, many vital processes take place in membraneless molecular aggregates, which help ensure that the molecules involved are present at the right concentration and in proximity to each other.
Chemistry - Physics - 11.08.2023

Catalysis scheme developed at the University of Bonn is inexpensive, sustainable, and effective A novel catalysis scheme enables chemical reactions that were previously virtually impossible. The method developed at the University of Bonn is also environmentally friendly and does not require rare and precious metals.
Life Sciences - Chemistry - 11.08.2023
Secretomics uncovers blood-brain barrier mystery
Mystery of blood-brain barrier unraveled: researchers find substrates with high importance for the barrier During neuroinflammation, immune cells such as leukocytes cross the blood-brain barrier. One key to this is the gelatinases matrix metalloproteinase (MMP)-2 and -9. Until now, the substrates of these enzymes involved in the process were unknown.
Life Sciences - Chemistry - 02.08.2023

Scientists reveal the transport of positively charged signal sequences through negatively charged groove Known as the power plant of the cell, mitochondria are essential to human metabolism. Human mitochondria consist of 1,300 different proteins and two fatty biomembranes. The vast majority of mitochondrial proteins are produced with a cleavable transport signal and have to be actively transported into the mitochondria.
Life Sciences - Chemistry - 01.08.2023

Biologists investigate molecular processes responsible for reprogramming at the protein level We already learn in school that plants carry out photosynthesis in their chloroplasts when exposed to light. In the dark, this process comes to a halt. Instead, green plant tissue - for example the leaves - then activate cellular respiration, during which they consume carbohydrates and oxygen in the mitochondria, similarly to what humans are constantly doing.
Chemistry - Physics - 26.07.2023

Automated analysis of microplastics How high are concentrations of microplastics in the environment, in our drinking water or in foods? Researchers at the Technical University of Munich (TUM) have developed an automated analysis method for the identification and quantification of particles. Microplastics are everywhere in the environment.
Chemistry - Materials Science - 18.07.2023

It is impossible to imagine everyday life without polymers. However, they represent only a small section of the huge number of polymers that could theoretically exist. Christopher Kuenneth at the University of Bayreuth, Germany, together with research partners in Atlanta, USA, has now developed a digital system that promises extraordinarily high economic, technological and ecological benefits: From around 100 million theoretically possible polymers, it can filter out at unprecedented speed precisely those materials that are most suitable for targeted applications.
Chemistry - 12.07.2023

"Molecular origami" creates new structures in a single operation / Team from the University of Münster presents study in "Nature Communications" Fluorine is found rarely in naturally occurring organic molecules. However, this chemical element is indispensable for the production of pharmaceuticals or agrochemicals.
Chemistry - 06.07.2023

Photocatalysis as the key / New strategy published in "Science" Most drugs on the market consist of cyclic (ring-shaped) molecules, many of which contain multiple rings. Developing simple and powerful methods for constructing important and novel ring systems remains a task and challenge for chemists in order to produce drugs more efficiently and also to enable new drug structure motifs.
Chemistry - Life Sciences - 05.07.2023

New findings on photosynthesis Plants use photosynthesis to produce oxygen, nutrients and bioenergy. But this complex biochemical process is inefficient, with only a fraction of the sun's energy actually being utilized in photosynthesis. Researchers want to change this in order to help increase the yield of cultivated crops.
Chemistry - Environment - 04.07.2023

Until now, nylon has been produced from petroleum-based raw materials. However, this is quite harmful to the environment because non-renewable fossil resources are used, a great deal of energy is required, and climate-damaging nitrous oxide is emitted during production. A research team from the Helmholtz Centre for Environmental Research (UFZ) and the Leipzig University has now developed a process that can produce adipic acid, one of two building blocks of nylon, from phenol through electrochemical synthesis and the use of microorganisms.
Physics - Chemistry - 04.07.2023

Physicists from Heidelberg and Innsbruck develop technique for cooling negatively charged molecules Molecular anions, negatively charged molecules, are difficult to cool due to their specific electronic configuration. A team of physicists led by Matthias Weidemüller from Heidelberg University's Institute for Physics and Roland Wester from the Department of Ion Physics and Applied Physics at the University of Innsbruck (Austria) have now developed a new method for cooling molecular anions to below three Kelvin, i.e. approximately minus 270 degrees Celsius, in a short time.
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