ETH News

ETH Zurich researchers have investigated how tiny gas bubbles can deliver drugs into cells in a targeted manner using ultrasound. For the first time, they have visualised how tiny liquid jets generated by microbubbles penetrate the cell membrane enabling the drug uptake.

For Switzerland to achieve its net zero climate target, not only must it reduce its CO₂ emissions, it must also find a way to store the greenhouse gas permanently. Researchers at ETH Zurich have investigated whether, and under what conditions, CO₂ could be stored underground in Switzerland.

ETH researchers have developed a new gene switch that can be activated using a commercially available nitroglycerine patch applied to the skin. One day, researchers want to use switches of this kind to trigger cell therapies for various metabolic diseases.

ETH students have simulated an exploration mission to Venus by launching self-built test satellites from a plane over D¨¹bendorf military airfield. These satellites glided to the ground with parachutes, recording acoustic signals during their descent.

For the first time, an international team of researchers has shown that countless tiny ice quakes take place in one of Greenland's mightiest ice streams. This finding will allow the flowing of the ice stream and associated changes in sea level to be estimated more accurately.

Body weight and body mass index alone are not enough to predict whether someone will develop a metabolic disease. A new atlas of cells in fat tissue could help to explain why some overweight people stay healthy, while others do not.

Medical research needs unresolved issues from clinical practice, says ETH Zurich Vice President Christian Wolfrum. He explains in an interview how cooperation between ETH research and hospitals can be improved and why ETH intends to pool its activities in medical research.

Researchers aim to use vibrations to stimulate bone growth. Now, a new study paves the way for developing new therapies that may one day benefit patients suffering from bone fractures and age-related bone loss.

Successful test in breast cancer patients: the active agent digoxin, a cardiac medication, dissolves clusters of circulating breast cancer cells in the blood, thus reducing the risk of metastases formation.

Location data allows rich insights into private details about our lives: where we live and work, how we spend our free time and what is important to us, says Nina Wiedemann. This poses a considerable security risk ¨C even if we have nothing to hide. ?

Whether tunnels or retaining walls ¨C many Swiss reinforced concrete structures from the 1960s to the 1980s are at risk. Corrosion can make them unstable. ETH start-up Talpa Inspection has now developed a solution to localise corrosion more easily, even in hard-to-reach places.

Science diplomacy can transcend the geopolitical arena, building trust and bridging gaps between nations, emphasises Jo?l Mesot. And presents three partnerships in generative AI that highlight the power of cross-sector cooperation ¨C for humanitarian and peacekeeping missions as well as trustworthy AI.

Planning and building Europe¡¯s largest capacity geotechnical centrifuge took seven years. Now, after one and a half years of operation, its official inauguration is finally being celebrated at the H?nggerberg campus. And it¡¯s no coincidence that this is happening in mid-January.

Flight ticket prices could rise by 50 percent if aviation is made climate-neutral. This is an estimate from a new study by researchers at ETH Zurich. It is based in particular on the use of synthetic fuels.

An architecture PhD student at ETH Zurich has developed a simple solution for building concrete floors in a more climate-friendly way. Significant amounts of concrete and steel can be saved thanks to a lightweight, robust and reusable formwork design.

A biologist, a neuroscientist, a materials scientist and a physicist have each been awarded one of the prestigious grants of the Swiss National Science Foundation.

Researchers from ETH Zurich and ZHAW Winterthur are simulating in a new study how the future Swiss power system could be structured to withstand a drastic fall in gas and electricity imports. By doing so, they aim to contribute to the discussion surrounding Switzerland¡¯s supply security.

An international team of researchers has examined the environmental, social, economic and legal aspects of wind energy. In this interview, Russell McKenna, an expert in energy system analysis, explains where he sees the greatest need for action to further develop wind energy.

Researchers at ETH Zurich have developed a climate-friendly covering for walls and ceilings that temporarily stores moisture, creating a comfortable environment in heavily used indoor spaces. The covering components are made of mineral waste materials and are produced by means of 3D printing.

On the Pic du Midi in the Pyrenees, ETH Zurich researchers have analysed particulate matter, clouds and rainwater for traces of arsenic. Using newly developed measurement methods, they have elucidated the transport pathways of the environmental toxin in the atmosphere.

Geophysicists at ETH Zurich are using models of the lower mantle to identify areas where earthquake waves behave differently than previously assumed. This indicates the presence of zones of rocks that are colder, or have a different composition, than the surrounding rocks. This finding challenges our current understanding of the Earth's plate tectonics ¨C and presents the researchers with a major mystery.

Earth-observation satellites deliver data for a wealth of applications ¨C from monitoring climate change and documenting war crimes to planning disaster relief and assessing snow depth. ETH researchers are also big beneficiaries.

2024 saw ETH Zurich once again confirm its position as a global leader in research and teaching ¨C be it in the field of biology, energy sciences or space research.

Deep geothermal energy is climate-friendly and base-load capable - but how can this heat be tapped safely? ETH researchers are working on minimizing the earthquake risk and developing completely new systems, for example with closed CO₂ cycles.

Thomas Zurbuchen, Director of ETH Zurich Space, explains how Switzerland can do a better job of exploring and exploiting space ¨C and how there¡¯s still enormous potential to be tapped.

ETH Zurich is involved in a number of space missions ¨C from satellite-based searches for signs of life on exoplanets to the hunt for gravitational waves with the LISA space antenna. These projects rely on strong partnerships with the aerospace industry.

Neuroscientist Johannes Bohacek investigates the molecular basis of stress in the brain. He originally wanted to become a psychotherapist.

Brienz has just been evacuated for the second time. The decision is based, among other things, on thousands of simulations that ETH professor Jordan Aaron has produced using a computer model he developed. In an interview with ETH News, he explains why this model was used.

This year¡¯s Innovation Project required ETH students to develop kit-based robots capable of delivering gifts down the chimneys of model-sized houses. The ten best teams will compete against each other in the final on 17 December.

These small particles are reminiscent of paper flowers or desert roses. Physicians can use them to guide medicines to a precise destination within the body. Better yet, the particles can easily be tracked using ultrasound as they scatter sound waves.

Two flagship projects from Innosuisse have been launched at ETH Zurich with the aim of transforming the Swiss construction industry in a sustainable way: While "Swircular" lays the foundation for a circular construction industry, "Think Earth" enables regenerative construction with timber and earth.

A new generation of wearable sensors will fundamentally change medicine. Researchers at ETH Zurich and international experts have now published an overview showing what is possible with such sensors and what questions their developers should consider to ensure their successful future use.

ETH Zurich researchers have uncovered a serious side effect of using the CRISPR-Cas gene scissors. A molecule designed to make the process more efficient destroys parts of the genome.

Sleep problems have become a widespread issue. In a new popular science book and in an interview with ETH News, ETH sleep researcher Caroline Lustenberger describes the do¡¯s (and don¡¯ts) for when you can¡¯t get to sleep.

Since the 1980s, it¡¯s been known that a mysterious contaminant forms in chloraminated drinking water, but only now has a Swiss-American research team been able to identify the unknown product in US drinking water systems.

Four women and four men successfully applied for Starting Grants from the Swiss National Science Foundation via ETH Zurich.

Researchers at ETH Zurich have discovered a mechanism behind the yo-yo effect: fat cells have a memory that is based on epigenetics.

The XPRIZE Rainforest competition acknowledged ETH Zurich-led team for its development and deployment of novel, autonomous technologies that enable near real-time insights about biodiversity.

Researchers at ETH Zurich are utilising artificial intelligence to analyse the behaviour of laboratory mice more efficiently and reduce the number of animals in experiments.

Smart homes are intended to make life easier, but logging into individual devices is often still an onerous task. Researchers from ETH Zurich have investigated how everyday routines could be used for secure and user-friendly authentication ¨C with no need for cumbersome passwords.

Researchers at ETH Zurich have combined two gene editing methods. This enables them to quickly investigate the significance of many genetic mutations involved in the development and treatment of cancer.

ETH Professor Yiwen Chu is investigating how to apply quantum states to ever larger objects. This should help to gain new insights into physics and develop more efficient technologies. She has now been awarded the ETH Zurich Latsis Prize for her outstanding research.

Hydrogen-powered planes are set to take wing around the world in the future. To make this possible, engineers have to develop the jet engines that will power them. Experiments by researchers at ETH Zurich are now providing the necessary basis for making these engines powerful and durable.

A team of three European researchers will develop an imaging method to non-invasively measure the stiffness of moving organs such as the heart. The researchers will be supported by the European Research Council.

For many people, architectural norms create barriers to accessibility. How might we re-imagine our built environment to make it more inclusive?

A secure supply of electricity from renewable energies can only succeed if we also modernise the grid infrastructure. At the Energy Science Centre (ESC), ETH researchers are looking for smart ways to make the electricity grid fit for the energy transition without expensive expansion.

Pioneer Fellow Hao Liu uses lasers to produce microfilament structures to grow biological tissue in the lab for research and medicine ¨C from muscle tissue to cartilage. Now he¡¯s working to ready this technology for the market.

A team led by ETH climate researcher Sandro Vattioni has shown that diamond dust released in the atmosphere could be a good way to cool the climate. However, it is still not a sustainable solution to climate change, says Vattioni in an interview with ETH News.

A sustainable transition to a climate-friendly and biodiversity-rich Switzerland is only possible if we tackle the energy transition, climate change mitigation and biodiversity loss together. This will not be easy, but it is worthwhile and ultimately indispensable, says Reto Knutti.

The EU AI Act is designed to ensure that AI is transparent and trustworthy. For the first time, ETH computer scientists have translated the Act into measurable technical requirements for AI. In doing so, they have shown how well today's AI models already comply with the legal requirements.

Researchers at ETH Zurich have analysed down to the smallest detail the unusual arsenal of weapons that a predatory marine bacterium has at its disposal. Perhaps one day these weapons could also be put to use in medicine.

While living matter can advance technology and render human activities more efficient and eco-friendly, the way in which we currently fabricate materials containing living cells is far from sustainable. Miriam Filippi calls us to rethink our biofabrication practices.

Using a new method, researchers at ETH Zurich can measure alterations in the social network of proteins in cells. This work lays the foundation for the development of new drugs to treat diseases such as cancer and Alzheimer¡¯s.

He studies cancer cells and their cellular environment in order to new therapies. Now, ETH Zurich Professor Andrea Alimonti is being awarded the Clo?tta Prize.

Researchers at ETH Zurich have developed a laser that produces the strongest ultra-short laser pulses to date. In the future, such high power pulses could be used for precision measurements or materials processing.

Materials researchers have created a new composite material that combines two incompatible properties: stiff yet with a high damping capacity.

An organism as a tenant in another - in biology, this often works quite well. ETH researchers have now shed light on how such a partnership of a cell in a cell can establish.

ETH spin-off Terensis is able to forecast the harvest yield and climate risks such as droughts and frost with the help of satellites. This not only helps farmers to plan. Authorities and insurance companies can also predict damage more efficiently.

Research areas at ETH Zurich span barriers in a wide variety of fields, including cell biology, drug delivery and spatial planning. Below, we look at examples from six different disciplines.

Nina Cabezas Wallscheid, Professor of Stem Cell Biology and Ageing, is researching the impact of nutrition on the human blood system. Her research team aims to identify the ideal diet for a long and healthy life.

ETH student and top sprinter G¨¦raldine Frey is preparing for her races with an innovative piece of equipment. Developed at ETH Zurich, the Airshield reduces aerodynamic drag, enabling athletes to train at speeds above their normal pace.

Researchers at ETH Zurich have used a drug screening platform they developed to show that an antidepressant, currently on the market, kills tumour cells in the dreaded glioblastoma ¨C at least in the cell-culture dish.

Researchers at ETH Zurich have been working with researchers from Ukraine and Germany to investigate how to rebuild Ukraine¡¯s destroyed energy infrastructure based on renewable energy. They have determined that solar and wind energy would quickly deliver a distributed power supply system and prevent corruption.

To make informed decisions, governments and international organisations need data. The United Nations has been analysing the global availability of such data together with ETH Zurich. This has brought to light some surprising insights.

ETH Zurich researchers have developed a fast, robot-assisted printing process for earth materials that does not require cement.

Researchers at ETH Zurich and the Max Planck Institute for Intelligent Systems have developed a robotic leg with artificial muscles. Inspired by living creatures, it jumps across different terrains in an agile and energy-efficient manner.

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could also be used in technical applications with electromagnetic waves.

Researchers at ETH Zurich have developed ultra-flexible brain probes that accurately record brain activity without causing tissue damage. This opens up new avenues for the treatment of a range of neurological and neuropsychiatric disorders.?

Pharmaceutical researchers often find new pharmaceutically active substances only by sifting through large collections of chemical compounds. Chemists at ETH Zurich have now made critical progress on a specific process for generating and searching these collections.

Researchers at ETH Zurich are using iron to store hydrogen safely and for long periods. In the future, this technology could be used for seasonal energy storage.

Scientists around the world can now go full throttle in their research into chemical plastics recycling. Researchers at ETH Zurich have laid important foundations for this by showing that it¡¯s all about the stirring.

Researchers at ETH Zurich and The Chinese University of Hong Kong have succeeded for the first time in using remote control to perform a magnetic endoscopy on a live pig. The researchers controlled the probe from Zurich while the animal was on the operating table in Hong Kong.

Four researchers from ETH Zurich have successfully applied for Consolidator Grants funded by the Swiss National Science Foundation.

Not all pain is the same. Depending on the cause, it requires different therapies. A team led by ETH Zurich has now developed a method that enables physicians to better distinguish between physical and psychosocial pain.

Most of a planet¡¯s water is generally not on its surface but hidden deep in its interior. This affects the potential habitability of distant worlds, as shown by model calculations of researchers at ETH Zurich and Princeton University.

A new class of fat cells makes people healthier. The cells consume energy and produce heat through seemingly pointless biochemical reactions.

Catastrophic volcanic eruptions that warmed the planet millions of years ago shed new light on how plants evolve and regulate climate. Researchers reveal the long-term climate effects of disturbed natural ecosystems - its implications both in geological history and for today.

The brain chemical orexin is crucial when we choose between sport and the tasty temptations that beckon everywhere we turn. This research finding could also help people who find it difficult to motivate themselves to exercise.

ETH researchers have modified certain bacteria with UV light so that they produce more cellulose. The basis for this is a new approach with which the researchers generate thousands of bacterial variants and select those that have developed into the most productive.

Southern Europe is currently battling a heat wave. Jan Carmeliet explains how cities can tackle the summer heat. It is a balancing act that calls for finely tuned measures.

Researchers at ETH Zurich have uncovered how colorectal cancer cells colonise the liver. Their findings could open up new ways to suppress this process in the future.

Earth seen from space: ETH spin-off askEarth facilitates access to satellite images for environmental and climate monitoring. It supports businesses in combatting deforestation.

Despite a wet and grey June, summers in Switzerland are getting hotter than expected. The increased summer temperatures harbour risks that we are not well prepared for, says Dominik Schumacher.

Researchers from ETH Zurich and Empa have developed a hydrogel implant that can help prevent endometriosis, a condition that affects a great many women. This innovation also acts as a contraceptive.

When the Earth¡¯s ice masses melt, the way the planet rotates also changes. Researchers at ETH Zurich have now been able to show how climate change is altering the Earth¡¯s axis of rotation and the length of the day. The speed of rotation, which was hitherto mainly influenced by the moon, will now also depend much more on the climate.

A newly developed airshield supports track and field athletes such as Mujinga Kambundji with overspeed training.

ETH researchers are developing a process inspired by nature that efficiently recovers europium from old fluorescent lamps. The approach could lead to the long-awaited recycling of rare earth metals.

This year¡¯s European Hyperloop Week is being held in Zurich. Student engineering teams will present their prototypes to a jury and compete against each other in different categories. ETH Zurich is represented with the Swissloop project.

A new electrolyte design for lithium metal batteries could significantly boost the range of electric vehicles. Researchers at ETH Zurich have radically reduced the amount of environmentally harmful fluorine required to stabilise these batteries.

Whether sustainably produced hydrogen needs to be 100 percent green is currently under debate. Using the production of ammonia and artificial fertiliser as examples, researchers have calculated that "nearly sustainable" hydrogen would be better in the end.

An international team of researchers combine orbital imagery with seismological data from NASA¡¯s Mars InSight lander to derive a new impact rate for meteorite strikes on Mars. Seismology also offers a new tool for determining the density of Mars¡¯ craters and the age of different regions of a planet.

Rasmus Kyng has written the near-perfect algorithm. It computes the maximum transport flow at minimum cost for any kind of network ¨C be it rail, road or electricity ¨C at a speed that is, mathematically speaking, impossible to beat.

Everyone talks about Artificial Intelligence but its current adoption rates are low in the Swiss tech industry, especially in manufacturing-related applications. This is one conclusion of a survey conducted by ETH Zurich in collaboration with Swissmem and Next Industries. Professor Torbj?rn Netland, responsible for the report, explains why Swiss tech companies are still faring well in an international comparison and how they can release the potential.

Why do civilians take the law into their own hands? Using Mexico as an example, ETH researcher Enzo Nussio shows how it¡¯s a combination of a weak state and strong local communities.

Manu Kapur has been Director of the Singapore ETH Centre (SEC) since the beginning of the year. In this interview, he talks about which research programmes will be continued in Singapore, which new programmes will be created, and how researchers from across the ETH Domain can get involved in the SEC.

Using a special wafer-thin gold membrane, ETH researchers have made it significantly easier to study surfaces. The membrane makes it possible to measure properties of surfaces that are inaccessible to conventional methods.

Jessica Droujko¡¯s start-up, Riverkin, measures the water quality of freshwater ecosystems and helps quantify and respond to risks such as floods and pollution. Thanks to an ETH Pioneer Fellowship, her work is now picking up speed.

Marco Hutter, a pioneer in mobile robotics, has been awarded this year¡¯s R?ssler Prize, the most highly endowed research award at ETH Zurich.

Researchers at ETH Zurich have shown that quantum states of single electron spins can be controlled by currents of electrons whose spins are evenly aligned. In the future, this method could be used in electronic circuit elements.

Researchers at ETH Zurich have developed a cell-based bone model to help investigate the cause of this genetic condition.