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ETH Zurich


Putting a face on a cell surface

Researchers have created an in silico inventory of proteins on cell surfaces using machine learning, predicting the presence of over 2,900 proteins on human cell surfaces. The study reveals a wide variety of surface proteins across different cell types, with primary stem cells showing the greatest diversity.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateNov 21, 2018

Why macrophages rest in healthy tissue

Researchers have discovered that macrophage activity is lowered when they sit in tissue between cells, even with pro-inflammatory stimuli present. This mechanism helps prevent unnecessary inflammatory responses in healthy tissues.

SourceETH Zurich·JournalNature Materials·DateNov 20, 2018

The final stage before a big bang?

A team of vulcanologists from ETH Zurich has found evidence suggesting the Phlegraean Fields are in the early stage of a new caldera cycle, which could lead to another massive eruption. The researchers used rock samples from previous eruptions to reconstruct the conditions in the crust and create a model of the cycle.

SourceETH Zurich·JournalScience Advances·DateNov 20, 2018

How yeast cells detect genetic infections

Researchers discovered a novel defence mechanism in yeast cells that uses centromeres to detect and neutralize foreign genetic material. This mechanism ensures that potentially harmful DNA is confined within one cell, while the daughter cell contains only reliable DNA.

SourceETH Zurich·JournalCell·DateOct 11, 2018

Genetic disease healed using genome editing

Researchers at ETH Zurich successfully heal genetic disease phenylketonuria in mice using a modified CRISPR/Cas9 system. The technique achieved a high correction rate of up to 60% and restored normal levels of phenylalanine, eliminating the disorder's symptoms.

SourceETH Zurich·JournalNature Medicine·DateOct 8, 2018

Recording device for cell history

ETH Zurich researchers have created a molecular recording system that writes transcriptional events into DNA, allowing permanent storage and later access. The CRISPR-Cas system records genetic information about pathogens infecting the cell, storing it in a specific stretch of DNA known as a CRISPR array.

SourceETH Zurich·JournalNature·DateOct 3, 2018

The origins of the High Plains landscape

The High Plains landscape was formed 20 million years ago through geological uplift and erosion, resulting in a unique ecosystem with hundreds of thousands of ephemeral lakes. These lakes provide crucial breeding and wintering habitats for millions of birds and recharge the Ogallala aquifer, North America's largest groundwater reservoir.

SourceETH Zurich·JournalNature·DateSep 26, 2018

Searching for errors in the quantum world

A thought experiment by Renato Renner and Daniela Frauchiger reveals a paradoxical situation where indirect observation of a quantum mechanical object yields the opposite result of direct observation. The calculation shows that precisely this is not the case, creating a conundrum. While colleagues have proposed various solutions, none ...

SourceETH Zurich·JournalNature Communications·DateSep 18, 2018

A very special protein synthesis machinery

A team of scientists has discovered the atomic-resolution structure of a specialized ribosome in Trypanosomes, a parasitic disease-causing organism. The study reveals that these ribosomes are composed primarily of proteins, unlike other ribosomes which are dominated by RNA.

SourceETH Zurich·JournalScience·DateSep 13, 2018

Drought increases CO2 concentration in the air

A new study uses satellite technology to measure the impact of droughts on photosynthesis and ecosystem respiration. Researchers found that during dry years, natural ecosystems removed about 30% less carbon from the atmosphere, leading to faster CO2 concentration increases.

SourceETH Zurich·JournalNature·DateAug 29, 2018

How birds learn

Zebra finches learn to distinguish between birdsongs using trial and error or observation. Trial-and-error methods are more robust for generalization, while observation is faster but less effective.

SourceETH Zurich·JournalNature Communications·DateAug 13, 2018

Hidden signs in cancer tissue

A study by ETH Zurich researchers has discovered new cancer-specific molecular changes in RNA molecules, which could inform the development of cancer treatments. The analysis found that alternative splicing occurs more frequently in tumor tissues than healthy tissues, particularly in pulmonary adenocarcinomas.

SourceETH Zurich·JournalCancer Cell·DateAug 8, 2018

Alessio Figalli wins the 'Nobel Prize of Mathematics'

Alessio Figalli, a mathematician at ETH Zurich, has been awarded the Fields Medal for solving the Monge-Ampere equation, a famous partial differential equation with applications in urban planning, imaging, and meteorology. He has also made significant contributions to optimal transport and its connections to probability.

A spin trio for strong coupling

A team of scientists at ETH Zurich have found a way to avoid disturbances in qubit operations by coupling a microwave photon to a spin qubit. The researchers created a 'spin trio' consisting of three quantum dots and demonstrated strong coupling between the spin qubits and a microwave photon.

SourceETH Zurich·JournalNature·DateJul 26, 2018

Soil bugs munch on plastics

Researchers at ETH Zurich found that soil microorganisms degrade films composed of poly(butylene adipate-co-terephthalate) (PBAT), a biodegradable polymer. This discovery demonstrates the true biodegradation of a plastic material in soils, offering a potential solution to plastic pollution.

SourceETH Zurich·JournalScience Advances·DateJul 25, 2018

Environmental impact passed on to offspring

Research shows that ambient temperature before conception influences offspring's brown adipose tissue activity and protection against excess weight and metabolic disorders. This epigenetic mechanism may explain why people in cold regions have higher levels of brown fat.

SourceETH Zurich·JournalNature Medicine·DateJul 9, 2018

Gulf Stream eddies as a source of iron

Researchers from ETH Zurich have found that cold, iron-rich seawater from the North American continental slope is captured by meanders of the Gulf Stream and carried out to the North Atlantic Gyre, enriching it with iron. The study suggests that this source may deliver up to 15% of the iron delivered by Saharan dust.

SourceETH Zurich·JournalNature Geoscience·DateJul 3, 2018

Administering hormones affects DNA

Researchers found that even extremely low doses of an endocrine disruptor caused epigenetic changes in a pregnant sow's DNA and its offspring. The study suggests that humans may also be affected by such chemicals, leading to a re-assessment of acceptable daily intake values.

SourceETH Zurich·JournalScientific Reports·DateJun 29, 2018

Mars valleys traced back to precipitation

A recent study suggests that Mars' river networks were shaped by superficial run-off of rainwater, contradicting previous hypotheses about groundwater seepage. The researchers found similarities in the branching angles of Martian valleys with those in arid landscapes on Earth.

SourceETH Zurich·JournalScience Advances·DateJun 28, 2018

Efficient, eco-friendly production of fine chemicals

Researchers at ETH Zurich have developed a solid catalyst for a major chemical reaction, reducing waste and increasing efficiency by 20 times compared to traditional soluble catalysts. The new palladium-carbon-nitrogen material is more stable and cost-effective, making it suitable for commercial-scale production.

SourceETH Zurich·JournalNature Nanotechnology·DateJun 25, 2018

The photoelectric effect in stereo

A team of physicists has measured a tiny time difference in the ejection of an electron from a molecule depending on its position. The researchers used attosecond laser pulses to study the photoelectric effect in carbon monoxide molecules, achieving precise measurements of the Wigner time delay and electron localization.

SourceETH Zurich·JournalScience·DateJun 22, 2018

Fat cells control fat cell growth

Researchers at ETH Zurich discovered a new type of regulatory fat cell called Aregs that inhibits the formation of new fat cells. This discovery opens up promising avenues for future therapies to protect obese people from diabetes and other secondary illnesses.

SourceETH Zurich·JournalNature·DateJun 21, 2018

Quantum transfer at the push of a button

Researchers at ETH Zurich have developed a method to transmit quantum states deterministically over short distances, paving the way for more efficient and secure quantum computing and cryptography. The transmission rate reaches 80% fidelity, enabling entanglement creation between qubits up to 50,000 times per second.

SourceETH Zurich·JournalNature·DateJun 14, 2018

Swimming without an engine

Researchers at ETH Zurich have developed a new propulsion concept that exploits water temperature for swimming robots, eliminating the need for engines or power supplies. The robots use bistable propulsion elements triggered by shape memory polymer strips to propel forward.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateJun 5, 2018

Valves for tiny particles

The ETH Zurich researchers developed nanovalves that can control individual nanoparticles in liquids using electric forces. This technology enables sorting and manipulation of tiny particles such as metal, semiconductor, virus, liposomes, and antibodies.

SourceETH Zurich·JournalNature Nanotechnology·DateMay 23, 2018

Optimum shade for cocoa

Researchers found that a shade-tree cover of approximately 30% has a predominantly positive effect on cocoa plants, maintaining maximum soil moisture and keeping pests and diseases in check. This amount of shade also increases animal and plant species, carbon sequestration, and cooling effects on temperature.

SourceETH Zurich·JournalNature Sustainability·DateMay 18, 2018

An electronic rescue dog

Researchers at ETH Zurich developed a device that combines multiple gas sensors to detect entrapped people. The device, the size of a small computer chip, can identify specific chemical compounds emitted by humans and distinguish them from other sources.

SourceETH Zurich·JournalAnalytical Chemistry·DateMay 16, 2018

Malaria detectable in olfactory cocktail

Researchers at ETH Zurich have identified volatile biomarkers that can detect malaria in people with no external symptoms. The study found that changes in human odours are characteristic of both acute and asymptomatic malaria infections, allowing for nearly 100% detection rate even at low pathogen quantities.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateMay 15, 2018

Getting health data sharing off the ground

The Swiss Personalized Health Network aims to develop guidelines for responsible health data sharing, addressing key topics like data quality and patient sovereignty. Innovative solutions, including blockchain and reciprocity-based incentives, are being explored to overcome hurdles in data sharing.

SourceETH Zurich·JournalHealth Affairs·DateMay 9, 2018

It all comes down to roughness

The study shows that using rough particles can significantly reduce the amount of material needed to achieve sudden solidification in suspensions. This could lead to improved cement flow characteristics and potential applications in everyday materials like bullet-proof vests.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateMay 2, 2018

New materials for sustainable, low-cost batteries

ETH Zurich scientists have discovered two new materials that could advance the development of aluminum batteries: a corrosion-resistant titanium nitride material and a flexible polypyrene material for the positive electrode. These advancements aim to improve the energy storage capacity, cost-effectiveness, and scalability of sustainabl...

SourceETH Zurich·JournalAdvanced Materials·DateApr 30, 2018

An artificial mole as an early warning system

A synthetic gene network implanted under the skin monitors blood calcium levels to detect four common types of cancer, triggering a visible mole when a threshold is exceeded. Early detection increases survival chances by up to 98%, significantly improving treatment outcomes.

SourceETH Zurich·JournalScience Translational Medicine·DateApr 18, 2018

Marker substance for research into brain diseases

Researchers at ETH Zurich have developed a marker substance to visualize NMDA receptors on nerve cells using positron emission tomography (PET). This will aid in researching various brain diseases like Alzheimer's, Parkinson's, and depression. The PET tracer may also help determine the correct dosage of drugs influencing NMDA receptor ...

SourceETH Zurich·JournalJournal of Nuclear Medicine·DateApr 12, 2018

Overestimated mutation rate

Researchers at ETH Zurich found that initial estimates of Ebola's genome change rate were due to biased computer models and limited virus sample data. The team's new calculations show a slower, more accurate mutation rate over time.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateApr 12, 2018

The thermodynamics of computing

Researchers found that the efficiency of information processing cannot be increased indefinitely, with thermodynamic and information theory combining to identify key factors. Better understanding and tailored software can influence the limit.

SourceETH Zurich·JournalPhysical Review X·DateApr 11, 2018

North-exposed ice cliffs accelerate glacier melt

Glacier research suggests north-facing ice cliffs contribute significantly to melting of debris-covered glaciers in the Himalayas. Satellites show rapid mass loss, contrary to initial assumptions that debris protects the ice from direct solar radiation.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateApr 11, 2018

Catching the right fish

Researchers at ETH Zurich have developed a new screening method that speeds up the search for drugs using a 35 million compound DNA-encoded chemical library. The library consists of drug candidates with a stable ring-shaped basic structure and varied attachments, allowing for highly-specific binding to proteins.

SourceETH Zurich·JournalNature Chemistry·DateMar 28, 2018

Earwigs and the art of origami

Researchers at ETH Zurich developed a self-folding material inspired by the earwig's wing, which can operate without muscular actuation. This innovation has potential applications in space travel, foldable electronics, and everyday objects.

SourceETH Zurich·JournalScience·DateMar 22, 2018

Enzyme ensures thick insulation

Researchers at ETH Zurich have discovered that Schwann cells produce fatty acids through an enzyme called FASN, which is essential for myelin layer formation and maintenance. This breakthrough has implications for understanding the development of rare childhood diseases and potential treatments.

SourceETH Zurich·JournalJournal of Cell Biology·DateMar 8, 2018

Many small differences contribute to a large variation

Researchers found that multiple small differences, rather than a single factor, explain the large variation in how people respond to drugs. The study used systems biology and metabolomics techniques to analyze protein and metabolite concentrations in cell culture experiments.

SourceETH Zurich·JournalCell Systems·DateMar 6, 2018

New tool for the crystallization of proteins

A new method has been developed to crystallize membrane proteins of any type or size, allowing researchers to elucidate their structure. The technique uses lipid-water mixtures to create self-assembled channels that enable large proteins to be crystallized.

SourceETH Zurich·JournalNature Communications·DateMar 5, 2018

Teaching quantum physics to a computer

Researchers developed machine learning software that allows computers to learn the quantum state of complex systems based on experimental observations. This approach enables faster tomography for quantum states and has implications for testing quantum computers with many qubits.

SourceETH Zurich·JournalNature Physics·DateFeb 27, 2018

A protein that self-replicates

Researchers at ETH Zurich have made a groundbreaking discovery that protein amyloids can self-replicate, challenging the long-held RNA hypothesis as the origin of life. The findings suggest that early life forms may have used amyloids as information carriers and catalytic units.

SourceETH Zurich·JournalNature Communications·DateFeb 27, 2018

Sticking sugar to protein

The study reveals the importance of sugary appendages on protein surfaces, which differ in composition and branching. The researchers discovered the three-dimensional structure of oligosaccharyltransferase, providing insight into eukaryotic N-glycosylation.

SourceETH Zurich·JournalScience·DateFeb 8, 2018

The ozone layer continues to thin

The ozone layer has continued to decline in the lower stratosphere, contrary to expectations that it would have recovered by the middle of the century. Satellite measurements show a decrease in ozone concentrations at latitudes between 60° S and 60° N since the Montreal Protocol banned ozone-depleting substances in 1989.

SourceETH Zurich·JournalAtmospheric Chemistry and Physics·DateFeb 6, 2018

Workbench for virus design

Researchers have developed a novel technology platform to genetically modify phage genomes systematically, providing additional functionality. The new phage workbench allows for the creation of custom bacteriophages with various functions, overcoming constraints associated with naturally occurring phages.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateFeb 6, 2018

Measuring molecular interactions

Researchers have developed a new method to quantify protein-metabolite interactions, discovering hundreds of new interactions and binding sites. The approach has the potential to identify new regulatory mechanisms, enzymes, and metabolic reactions in cells.

SourceETH Zurich·JournalCell·DateFeb 1, 2018

Reflective surfaces alleviate heatwaves

Researchers developed a practical approach combining clever land use and urban radiation management to cool extreme summer temperatures locally. The measures can lower temperatures in agricultural regions and densely populated areas by up to two degrees Celsius.

SourceETH Zurich·JournalNature Geoscience·DateJan 30, 2018

Algorithm increases employment opportunities for refugees

A new algorithm developed by ETH Zurich and Stanford University aims to increase employment opportunities for refugees in Switzerland by up to 73%. By analyzing data on refugees' characteristics and labor market conditions, the algorithm provides a tailored recommendation for which canton each refugee is most likely to find work.

SourceETH Zurich·JournalScience·DateJan 19, 2018