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Chemistry
Results 41 - 60 of 406.
Physics - Chemistry - 20.02.2024
It’s the spin that makes the difference
Biomolecules such as amino acids and sugars occur in two mirror-image forms - in all living organisms, however, only one is ever found. Why this is the case is still unclear. Researchers at Empa and Forschungszentrum Jülich in Germany have now found evidence that the interplay between electric and magnetic fields could be at the origin of this phenomenon.
Chemistry - Environment - 20.02.2024
A sustainable fuel and chemical from the robotic lab
Artificial intelligence and automated laboratory infrastructure are massively accelerating the development of new chemical catalysts. With these tools, researchers at ETH Zurich are developing catalysts for efficiently and cost-effectively synthesising the energy source methanol from CO2. Catalysts are chemistry's hard-working little helpers.
Chemistry - Computer Science - 07.02.2024
GPT-3 transforms chemical research
Scientists at EPFL demonstrate how GPT-3 can transform chemical analysis, making it faster and more user-friendly. Artificial intelligence is growing into a pivotal tool in chemical research, offering novel methods to tackle complex challenges that traditional approaches struggle with. One subtype of artificial intelligence that has seen increasing use in chemistry is machine learning, which uses algorithms and statistical models to make decisions based on data and perform tasks that it has not been explicitly programmed for.
Physics - Chemistry - 31.01.2024
How to make bright quantum dots even brighter
Researchers at Empa and ETH have developed methods for making perovskite quantum dots faster and more efficient emitters, thereby significantly improving their brightness. This is relevant for applications in displays as well as in quantum technologies. Quantum dots are a kind of artificial atom: just a few nanometres in size and made of semiconductor materials, they can emit light of a specific colour or even single photons, which is important for quantum technologies.
Life Sciences - Chemistry - 25.01.2024
’Mini-placentas’ shed light on early events that are key for a successful pregnancy
The placenta provides oxygen and nutrients to a growing baby, but its early interactions with a mother's uterus remain an enigma.
Pharmacology - Chemistry - 22.01.2024
New agent blocks stress response
If the body's natural stress response gets knocked off balance, it can result in physical and mental health disorders. Researchers at ETH Zurich have developed an agent capable of selectively inhibiting this response. Stress isn't merely an oppressive feeling we experience when we're overwhelmed; it's the body's natural reaction to acute or persistent strain.
Environment - Chemistry - 12.01.2024
Capturing greenhouse gases with the help of light
Researchers at ETH Zurich are developing a new method to remove CO2 from the atmosphere. It involves molecules that become acidic when exposed to light. Their new process requires much less energy than conventional technologies. If we want to slow down global warming, we need to drastically reduce greenhouse gas emissions.
Chemistry - Agronomy / Food Science - 05.12.2023
How to identify vintage wines by their chemical signature
A team of researchers has revealed how to find the exact origin of a wine based solely on its chemical components. Does every wine carry its own chemical signature and, if so, can this be used to identify its origin? Many specialists have tried to solve this mystery, without fully succeeding.
Physics - Chemistry - 04.12.2023
Watching electrons at work
Researchers from ETH Zurich, Empa and Stanford have taken snapshots of the crystal structure of perovskite nanocrystals as it was deformed by excited electrons. To their surprise, the deformation straightened out the skewed crystal structure rather than making it more disordered. Many a scientific and technical problem could be solved easily if it were possible to look inside a material and watch its atoms and electrons wiggle about in real time.
Life Sciences - Chemistry - 27.11.2023
Molecular cooperation at the threshold of life
Protein-like aggregates known as amyloids can bind to molecules of genetic material. It is possible that these two types of molecules stabilised each other during the development of life - and that this might even have paved the way for the genetic code. How organisms develop from inanimate matter is one of the biggest questions in science.
Chemistry - Pharmacology - 23.11.2023
Artificial intelligence finds ways to develop new drugs
A new AI model developed by chemists at ETH Zurich can not only predict where a pharmaceutically active molecule can be chemically modified, but also how best to do it. This makes it possible to identify new pharmaceutical ingredients more quickly and improve existing ones in a targeted manner. New active pharmaceutical ingredients lay the foundations for innovative and better medical treatments.
Life Sciences - Chemistry - 17.11.2023
A Bandpass Filter for Synthetic Biology
Scientists have crafted a biological system that mimics an electronic bandpass filter, a novel sensor that could revolutionize self-regulated biological mechanisms in synthetic biology. Synthetic biology holds the promise of enhancing and modifying biological systems into innumerable new technologies for the benefit of society.
Life Sciences - Chemistry - 10.11.2023
The incredible architectural complexity of plants
Ensuring growth and development, sometimes sustained, without risking fragility. This is the delicate balance facing plants.
Chemistry - Environment - 24.10.2023
New design solves stability and efficiency of perovskite solar cells
Researchers at EPFL and Northwestern University unveil a groundbreaking design for perovskite solar cells, creating one of the most stable PSCs with a power-conversion efficiency above 25%, paving the way for future commercialization. Perovskite solar cells (PSCs) stand at the forefront of solar energy innovation, and have drawn a lot of attention for their power-conversion efficiency and cost-effective manufacturing.
Environment - Chemistry - 20.10.2023
Generating clean electricity with chicken feathers
Turning unused waste from food production into clean energy: Researchers at ETH Zurich and Nanyang Technological University Singapore are using chicken feathers to make fuel cells more cost-effective and sustainable. The food industry generates enormous amounts of waste and by-products, including from poultry production.
Chemistry - Physics - 12.10.2023
An electrical switch to control chemical reactions
A team from the University of Geneva has developed an electrical device that makes it easy to activate chemical reactions in a 'greener' way. New pharmaceuticals, cleaner fuels, biodegradable plastics: in order to meet society's needs, chemists have to develop new synthesis methods to obtain new products that do not exist in their natural state.
Chemistry - Physics - 04.10.2023
Ultrathin films achieve record hydrogen separation
Scientists at EPFL have synthesized the first ever metal-organic frameworks membrane with thickness of just one unit cell. The ultrathin film yields record-high separation performance of hydrogen-nitrogen. Metal-organic frameworks (MOFs) are a class of materials that contain nano-sized pores. These pores give MOFs record-breaking internal surface areas, which make them extremely versatile for a number of applications: separating petrochemicals and gases , mimicking DNA , producing hydrogen , and removing heavy metals , fluoride anions , and even gold from water are just a few examples.
Chemistry - Physics - 04.10.2023
Ultrathin films achieve record hydrogen-nitrogen separation
Scientists at EPFL have synthesized the first ever metal-organic frameworks membrane with thickness of just one unit cell. The ultrathin film yields record-high separation performance of hydrogen. Metal-organic frameworks (MOFs) are a class of materials that contain nano-sized pores. These pores give MOFs record-breaking internal surface areas, which make them extremely versatile for a number of applications: separating petrochemicals and gases , mimicking DNA , producing hydrogen , and removing heavy metals , fluoride anions , and even gold from water are just a few examples.
Life Sciences - Chemistry - 13.09.2023
A human model for autism
The CRISPR-Cas gene scissors enable researchers to study the genetic and cellular causes of autism in the lab - directly on human tissue. How does autism develop? Which genes and cells in the human brain contribute to it? A new brain organoid model allows researchers from the Department of Biosystems at ETH Zurich in Basel and colleagues from Vienna to investigate these questions in human cells.
Environment - Chemistry - 08.09.2023
How trees influence cloud formation
As part of the international CLOUD project at the nuclear research centre CERN, researchers at PSI have identified so-called sesquiterpenes - gaseous hydrocarbons that are released by plants - as being a major factor in cloud formation. This finding could reduce uncertainties in climate models and help make more accurate predictions.