ETH News

Plants with multiple sets of chromosomes have advantages over their relatives with a double set. But why they often start out infertile was only partially understood. Biologists at ETH Zurich have now discovered a new reason for the initial difficulties.

It might be that what set prebiotic chemistry in motion and kept it going in the early days of the Earth was dust from outer space accumulating in holes melted into ice sheets. Researchers at ETH Zurich and the University of Cambridge have used a computer model to test this scenario.

Researchers have found genes in the reproductive organs of bulls that influence fertility. The findings can be transferred to humans, as these genes are also present in men.

Wherever hot water flows, limescale is never far away. In households, this is a nuisance; in thermal power stations, it’s an expensive problem. Now researchers at ETH Zurich have found an answer.

Researchers at ETH Zurich have developed a sensor that utilises energy from sound waves to control electronic devices. This could one day save millions of batteries.

A global study shows that the world’s groundwater resources are dwindling: levels are falling sharply worldwide, and the decline has accelerated in the 21st century. Nevertheless, there is still reason for hope.

ETH Zurich researchers have found a virus that kills dormant bacteria. This rare discovery could help to combat germs that can’t be treated with antibiotics alone.

From the giant blue whale to minuscule microbes, all creatures on this earth continuously shed traces of their DNA. These clues help researchers to determine the degree of biological diversity.

ETH Zurich researchers are illuminating what can happen when cells exceed their normal size and become senescent. Their new findings could help to optimise cancer treatments.

People living on the in low-lying coastal areas will be at even greater risk from cyclones in the future. Natural ecosystems offer protection, but this protection has decreased in recent years and is expected to continue to decline. This is a finding of a model study by an international team of researchers led by ETH Zurich.

Using a new 3D printing technique, researchers at ETH Zurich have developed special ceramic structures for a solar reactor. Initial experimental testing show that these structures can boost the production yield of solar fuels.

They set out to study the Congo Basin’s carbon cycle and in the process have become aware of one of the world’s darkest blackwater rivers: the Ruki. In the first study on this major jungle river, an international research team led by ETH Zurich explains how this blackness comes about and what it says about the river system’s carbon balance.

Stimulating the brain with gentle sounds during deep sleep significantly enhances cardiac function, according to a new study. This discovery could have implications not only for cardiovascular diseases but also for competitive sports, among other areas.

Cell biologists at ETH Zurich describe a new organelle present in mammalian cells that is made of rings of DNA. This container could potentially play a role in autoimmune diseases, and it could help researchers to understand how cell nuclei evolved.

"We will rock you": ETH Zurich researchers are developing a gene switch that triggers insulin release in designer cells by playing certain rock and pop songs.

The media uproar over wolf attacks on livestock in Switzerland and a bear attack in Italy show how charged the issue of large carnivores and humans coexisting in Europe is. ETH Zurich researcher Paula Mayer has now created a participatory model to help facilitate human-bear coexistence using the example of the Apennine brown bear.

ETH Zurich molecular biologist Mandy Boontanrart is researching gene therapies that could be used to cure two of the most common types of inherited anaemia. She has now developed a promising approach for so-called beta-hemoglobinopathies.

Researchers are using a new model to clarify why millions of years ago more animal species from Asia made the leap to the Australian continent than vice versa. The climate in which the species evolved played an important role.

How we are contaminating our waters with microplastics and a multitude of chemicals.

Yesterday, Swiss President Alain Berset toured the Carbfix plant in Iceland and visited the facilities where the pilot project "DemoUpCARMA" is implemented. The project aims at injecting and storing CO₂ in the Icelandic underground. Marco Mazzotti, project coordinator and ETH Zurich professor, explains why Swiss CO₂ is being shipped all the way to Iceland.

Switzerland is monitoring its biological diversity as part of a global effort to understand its changes and prevent further biodiversity loss. Researchers from ETH Zurich are working on a pioneering pilot study that includes the analysis of genetic diversity of native species.

Despite approved treatments being available, multiple myeloma remains incurable. But researchers at ETH Zurich and University Hospital Zurich set out to improve treatment outcomes by testing hundreds of existing therapeutics outside the body to predict their effectiveness.

ETH Zurich researcher Luca Dal Zilio offers an insightful summary of the recent earthquakes in Turkey and Syria, shedding light on the complex nature of this event. He discusses the lessons that can be drawn from it to better understand and prepare for future seismic occurrences in the region.

A fuel cell under the skin that converts blood sugar from the body into electrical energy sounds like science fiction. Yet it works perfectly, as an ETH Zurich research team led by Martin Fussenegger, Professor of Biotechnology and Bioengineering, has shown.

Researchers at ETH Zurich, Empa and EPFL are developing a 3D-printed insole with integrated sensors that allows the pressure of the sole to be measured in the shoe and thus during any activity. This helps athletes or patients to determine performance and therapy progress.

The Swiss Seismological Service at ETH Zurich has just introduced the first seismic risk model for Switzerland. It shows the potential impact of earthquakes on people and buildings in the country.

Robotics specialists from a group led by ETH professor Raffaello D’Andrea have created a new, cube-shaped robot that can balance on its pivot and compensate for external disturbances. What makes the One-Wheel Cubli unique? Unlike its predecessors, it only requires a single reaction wheel.

ETH Zurich researchers have developed an extraordinary protection against corrosion after a chance discovery. It glows in places where it is not damaged, repairs itself – and can be reused multiple times.

Atmospheric chemist Thomas Peter retired at the end of January. A profile of a man who taught us about the properties and processes of suspended particles and helped shape the second-largest department at ETH Zurich.

The ETH physicist has received an SNSF Consolidator Grant worth CHF 1.75 million.

Until now, mountain regions have been largely spared from biological invasions. But a new monitoring study shows that alien plants are spreading rapidly to higher altitudes along transport routes worldwide.

Researchers at ETH Zurich and the Swiss Federal research institute WSL have developed a flying device that can land on tree branches to take samples. This opens up a new dimension for scientists previously reserved for biodiversity researchers.

How did life on Earth first emerge? And how was it able to prosper and evolve? ETH researchers are involved in the quest to find answers to these fundamental questions.

ETH Zurich researchers have been able to show which genes inhibit self-fertilisation in grasses. Plant scientists can now use this mechanism in a more targeted way to breed new varieties of forage grasses as well as rice or barley.

A new study by various Swiss universities shows that aerosols in indoor air can vary in acidity. This acidity determines how long viruses remain infectious in the air – with profound implications for virus transmission and strategies to contain it.

For the first time, farmers in the Philippines have cultivated Golden Rice on a larger scale and harvested almost 70 tonnes of grains this October.This nearly never-ending story began at ETH Zurich.

ETH Zurich researchers have found that a set of proteins have different shapes in the spinal fluid of healthy individuals and Parkinson’s patients. These could be used in the future as a new type of biomarker for this disease. 

Researchers at ETH Zurich have developed an approach to accurately record and fully track the biodegradation of plastics in soils.  

Researchers at ETH Zurich are growing human brain-like tissue from stem cells and are then mapping the cell types that occur in different brain regions and the genes that regulate their development.

Materials scientists Nicole Kleger and Simona Fehlmann have developed a 3D printing process for creating salt templates that they can fill with other materials. One area of application is the creation of highly porous lightweight metal components. The two Pioneer Fellows are now trying to transfer this process to industry.

Researchers from ETH Zurich are studying how alpine vegetation is responding to a warming climate – and how some plant communities are continuing to stand firm against newcomers from lower elevations.

A team of researchers from ETH Zurich and WSL travelled to Svalbard this summer to take a closer look at the phenomenon of Arctic greening. Lead principal investigator Sebastian Doetterl discusses research in the face of polar bears, airline strikes and war.

Canadian researchers have discovered that they can stick hydrogel plasters to the skin very effectively using ultrasound. ETH Zurich professor Outi Supponen has now explained the underlying mechanism: imploding bubbles that form within the adhesive located between the plaster and the skin anchor the one on the other.

ETH Pioneer Fellow Alexandre Anthis has developed a patch that seals surgical sutures on the intestines or the stomach. The material designed can also detect any leakage at an early stage – thus preventing serious complications.

Researchers from ETH Zurich, the United States and Uganda have identified the gene responsible for resistance in certain cassava cultivars against the devastating cassava mosaic disease. This is an important step for breeding virus-resistant cassava varieties.

On 11 July, NASA published the first image taken by the James Webb Space Telescope. ETH Zurich Astrophysicist, Adrian Glauser was also involved in the construction of one of the telescope's measuring instruments. In an interview, he explains what he thought and felt when he saw the image.

Researchers at ETH Zurich have redetermined the gravitational constant G using a new measurement technique. Although there is still a large degree of uncertainty regarding this value, the new method offers great potential for testing one of the most fundamental laws of nature.

Researchers from ETH Zurich have established that the destruction of ozone over the Arctic in the spring causes abnormal weather throughout the northern hemisphere, with many places being warmer and drier than average – or too wet.

Biodiversity is beautiful, but it’s also vitally important. ETH researchers are getting to the heart of how species diversity and genetic diversity evolve – and why we must fight to preserve them.

Researchers at ETH have shown that cases of opioid poisoning and the prescription of opioids have increased sharply in Switzerland over the past 20 years. Although the situation is not as serious as in North America, the risk should not be underestimated.

Using DNA data, ETH researchers have examined seawater to find not only new species of bacteria, but also previously unknown natural products that may one day prove beneficial.

The InSight mission on Mars is running out of power and most of its functions could be shut down in the months to come. Some have already been deactivated. However, the attached seismometer, SEIS, will remain in operation for as long as possible. ETH Professor Domenico Giardini takes stock of three years of marsquake measurements.

An international research team use a global sampling of seawater to reveal which tropical reef fish occur where. To identify species and families, they successfully used the residual DNA shed by the animals present in the water. But not all fish can be traced in this way.

Researchers have developed a wearable device that plays specific sounds to enhance deep sleep. The first clinical study has now shown that the device is effective, but not at the same level of effectiveness for everyone.

A team of ETH researchers led by Athina Anastasaki have succeeded in breaking down plastic into its molecular building blocks and in recovering over 90 percent of them. A first step towards genuine plastic recycling.  

Geophysicist Mauro Häusler is a Pioneer Fellow at ETH Zurich. He uses a seismic method to investigate rock instabilities and wants to establish himself as a service provider in the geoengineering industry.

Through its new doctoral programme, the MaP Doctoral School, ETH Zurich plans to train specialists in materials and processes who will work across disciplines to tackle the big challenges of our time, such as climate change, sustainable development and personalised medicine.

Until now, research assumed that the vast forest area of the Congo Basin, like other tropical forests, releases large amounts of nitrous oxide and binds methane. Researchers at ETH Zurich have now shown that it behaves differently: methane is released, while nitrous oxide emissions are smaller than thought.

Located near Naples, Italy, Vesuvius last had a violent eruption in 1944, towards the end of the Second World War. It could be a few hundred years before another dangerous, explosive eruption occurs, finds a new study by volcano experts at ETH Zurich.

Researchers at ETH Zurich have demonstrated in the lab how well a mineral common at the boundary between the Earth’s core and mantle conducts heat. This leads them to suspect that the Earth’s heat may dissipate sooner than previously thought.

Most trees live in symbiosis with fungi. ETH Zurich researchers show just how important this partnership is for tree growth through the first-ever comprehensive data analysis compiled for European forests on a massive scale.

Without stronger climate action, the five biggest emitters will double the number of countries regularly experiencing extreme hot years by 2030.

Researchers at ETH Zurich have developed a new photocatalyst made from an aerogel that could enable more efficient hydrogen production. The key is sophisticated pretreatment of the material.

Geophysicists can use a new model to explain the behaviour of a tectonic plate sinking into a subduction zone in the Earth’s mantle: the plate becomes weak and thus more deformable when mineral grains on its underside are shrunk in size.

Researchers at ETH Zurich have developed the process technology that can produce carbon-neutral transportation fuels from sunlight and air. Now, in a Nature publication, they demonstrate the stable and reliable operation of the solar mini-refinery under real on-sun conditions. And they show a way to introduce solar fuels to the market without additional carbon taxes.

Green tea is seen as healthy and promotes a longer life supposedly due to its high level of antioxidants. Researchers at ETH Zurich have now cast doubt on previous assumptions about how these ingredients work.

Ocean warming caused by anthropogenic greenhouse-gas emissions will prompt many species of marine plankton to seek out new habitats, in some cases as a matter of sur-vival. ETH Zurich researchers expect many organisms to head to the poles and form new communities – with unforeseeable consequences for marine food webs.

Using a new mechanistic model of evolution on Earth, researchers at ETH Zurich can now better explain why the rainforests of Africa are home to fewer species than the tropical forests of South America and Southeast Asia. The key to high species diversity lies in how dynamically the continents have evolved over time.

Roe deer are among the few mammals whose embryos go into a particularly long period of dormancy. Using modern molecular methods, ETH Zurich researchers have shown for the first time exactly what happens to the embryo during this phase. They have identified signals that control the embryo`s awakening.

ETH Zurich researchers have developed a new type of laminate that changes colour as soon as the material is deformed. This way, the materials researchers can kill two birds with one stone: a lightweight composite material that inspects itself.

ETH professor and molecular biologist Ernst Hafen retires at the end of July. We look back at the colourful career of a leading scientist with many different interests beyond the narrow world of molecular genetics.

Nina Buchmann, Chair of the Department of Environmental Systems Science, looks back on 150 years of Agricultural Sciences. There have been many highlights, but what really stands out are the sweeping changes in research and teaching.

What holds true for meadows would seem to apply to arable land, too: mixed cultures are more fruitful than monocultures. This was the outcome of an ETH Zurich research project led by Christian Schöb.

ETH Zurich researchers have developed a gene switch that can be operated with the green LED light emitted by commercial smartwatches. This revolutionary approach could be used to treat diabetes in the future.

Researchers at ETH Zurich are developing a new filter membrane that is highly efficient at filtering and inactivating a wide variety of air-borne and water-borne viruses. Made from ecologically sound materials, the membrane has an appropriately good environmental footprint.

When researchers at ETH Zurich compared the reference genomes between several breeds of domestic cattle and closely related wild cattle, they discovered genes with previously unknown functions.

Evolution never stops – and disruptions can speed up the process. Now ETH researchers are delving deeper into the secrets of evolutionary change.

The risk of people being forced from their homes by flooding increases by half for each additional degree of global warming, as an international research team led by the Weather and Climate Risks Group at ETH Zurich demonstrate.

Using the extinct niobium-92 atom, ETH researchers have been able to date events in the early solar system with greater precision than before. The study concludes that supernova explosions must have taken place in the birth environment of our sun.

Based on the long-term Potsdam radiation time series, ETH Professor Martin Wild and his collaborators have shown that variations in the intensity of sunlight over decades are down to ultra-fine, man-made dirt particles in the atmosphere.

ETH researchers have drastically improved existing proteomics techniques so they can capture all functional alterations in proteins. Their work paves the way for using these signatures as diagnostic tools.

An ETH Zurich research team is using 3D printing to produce a new type of bioresorbable airway stent. This could greatly simplify the future treatment of upper airway obstruction.

ETH researchers have found a gene mutation that causes the sperm of boars to immobilize. Their discovery will help pig breeders to exclude animals with this genetic defect from breeding in future.

ETH climate researcher Daniela Domeisen has documented how the stratosphere influences extreme weather events. What surprised her was the sheer range of potential impacts. She explains what this means for climate research and long-term weather forecasts.

A team of ETH researchers led by Karsten Weis has developed a method that allows them to study the assembly process for large protein complexes in detail for the first time. As their case study, the biologists chose one of the largest cellular complexes: the nuclear pore complex in yeast cells.

When it gets warmer, organisms rise higher from the lowlands. Researchers from ETH and WSL investigated what could happen to plant communities on alpine grasslands if grasshoppers from lower elevations settled there.

Many countries could be using less nitrogen fertiliser in their agriculture without compromising their crop yields, as an international research team headed up by ETH scientists David Wüpper and Robert Finger are demonstrating.

Researchers working under ETH Professor Emeritus Ruedi Aebersold have demonstrated how mutations in a gene influence the structure, function and interaction network of a protein complex. Their work lays a key foundation for personalised medicine.

Hot and humid: Using minerals from ancient soils, ETH researchers are reconstructing the climate that prevailed on Earth some 55 million years ago. Their findings will help them to better assess how our climate might look in the future.

ETH Professor Thomas Van Boeckel and his colleagues have developed a model that enables them to predict the occupancy of intensive care beds. At the moment, this does not bode well for the coming weeks, if the corona virus continues to spread unchecked.

ETH Zurich researchers have been able to show why biological cells can take on such an astonishing variety of shapes: it has to do with how the number and strength of  local forces acting on the cell membrane from within. This knowledge feeds into the development of better minimal model systems and artificial cells.

Some time ago, ETH researchers developed a filter membrane made out of whey proteins and activated carbon. In a new study, they now demonstrate just how efficient this membrane is at filtering radioactive elements from contaminated water.

Fibre-optic cables are emerging as a valuable tool for geoscientists and glaciologists. They offer a relatively inexpensive way of measuring even the tiniest glacial earthquakes – plus they can also be used to obtain more accurate images of the geological subsurface in earthquake-prone megacities.

ETH researchers have used a computer model to test a new hypothesis about the formation of the Alps while simulating seismic activity in Switzerland. This will help improve current earthquake risk models.

ETH researchers have discovered that they can use light-sensitive molecules to switch genetic networks on and off as required. Their finding gives rise to an easy method for dynamically controlling biotechnological substance production.

The materials scientist, chemist and world-renowned tribologist Nicholas Spencer will be retiring soon. His departure could signal the loss of a specialist discipline within ETH Zurich.

Biologists have known for some time that RNA interference can silence genes in far-off cells. They suspected that a messenger substance “transmits” RNA interference. Now, ETH researchers have definitively shown that these messengers in plants are short double-stranded RNA fragments.

ETH researchers used computer simulations to classify the current activity of corona structures on the surface of Venus. To their surprise, they found a previously undiscovered ring of fire on our neighbouring planet.

Despite the coronavirus lockdown, the renovation and extension of Früebüel research station in Walchwil (Canton of Zug) was completed nearly on schedule. AgroVet–Strickhof, a research cooperative supported by ETH Zurich, the University of Zurich and Strickhof, now has state-of-the-art research and higher education facilities at its four locations.

ETH researchers have developed a new method for producing polymers with different lengths. This paves the way for new classes of polymer materials to be used in previously inconceivable applications.