ETH News

Marco Mazzotti will be conferred emeritus status at the end of January 2025. A good reason for a portrait of this dedicated process engineer, who came to his field of research quite unexpectedly.

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.

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.

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.

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.

ETH professor Mirko Meboldt helps Swiss SMEs find the right technology to tackle the challenges they face. His early prototypes give companies a solid basis for decision-making ¨C and the confidence to take things further.

Instead of burning coal or oil to produce cement or steel, in the future solar energy could be used for this purpose. Researchers at ETH Zurich have developed a thermal trap that can absorb concentrated sunlight and deliver heat at over thousand degrees Celsius.

ETH Zurich researchers have recovered the precious metal from electronic waste. Their highly sustainable new method is based on a protein fibril sponge, which the scientists derive from whey, a food industry byproduct.

Roughly one in two wearers of ventricular assist devices are diagnosed with an infection. The reason for this is the thick cable for the power supply. ETH Zurich researchers have now developed a solution to mitigate this problem.

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.

A new Master¡¯s degree programme in Space Systems will be launched at ETH Zurich in autumn 2024. Interested parties can start applying in April.

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.

Capturing carbon dioxide (CO₂) from the atmosphere and storing it either in recycled concrete aggregate or in geological reservoirs in Iceland is not only technically feasible, but also has a positive carbon footprint. These are the findings of a pilot project lead by ETH Zurich and commissioned by the Swiss confederation.

ETH is offering a new continuing education programme in the serviceability and repairability of buildings and products. The CAS is backed by an architect, a product developer and a production technologist.

For the first time, researchers have succeeded in printing a robotic hand with bones, ligaments and tendons made of different polymers using a new laser scanning technique.

ERC Synergy Grants have been awarded to Barbara Treutlein from the Department of Biosystems Science and Engineering and Nicolas Noiray from the Department of Mechanical and Process Engineering, together with their European partners.

The start-up Treeless Pack produces cellulose with microorganisms - entirely without wood. The cellulose can be used to produce paper, packaging material or composites for the construction industry in a resource-saving way.

Researchers at ETH Zurich have demonstrated the use of a specially coated metal mesh to harvest water from fog and simultaneously remove pollutants. People living in dry but foggy areas should benefit from this technology.

Sewer systems and centralised treatment plants are not a sustainable solution for managing the world¡¯s wastewater. Environmental engineers at ETH Zurich and Eawag have been helping to develop decentralised, closed-loop modular systems.

Innovative production technologies are crucial to the chemical industry¡¯s net-zero endeavour ¨C but they¡¯re not always enough, says Paolo Gabrielli.

Pulmonary surfactant is a special fluid released by cells in the lungs. For premature babies and COVID-19 patients in intensive care, it can mean the difference between life and death. An ETH materials scientist hopes to shed some light on this complex substance.

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.

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.

A new study shows what it will take for the plastics industry to become completely sustainable: lots of recycling combined with the use of CO₂ from the air and biomass. It is also the image of plastics that need to change.

A special year is soon coming to an end. In 2022, much has been researched, developed and invented at ETH Zurich. ETH News looks back on an eventful past year.

Researchers at ETH Zurich and the Carnegie Institution for Science have shown how nitrogen fertiliser could be produced more sustainably. This is necessary not only to protect the climate, but also to reduce dependence on imported natural gas and to increase food security.

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 ¨C thus preventing serious complications.

Most vaccines require constant refrigeration during shipment to remain effective. An international research team led by ETH Zurich has now developed a special hydrogel that vastly improves the shelf life of vaccines, even without refrigeration. The development could save many lives and lower the cost of cold chains.

ETH alumnus Christoph Rennhard runs a company that develops precision machines for the global market. The keys to his success are technical expertise, customer orientation and talented staff ¨C plus the ability of his SME to respond faster than big corporations.

Colours can be created in surprisingly different ways. And in addition to being pleasing to the eye, colour can also serve a useful purpose.

ETH Pioneer Fellow Martin Hofmann has developed a method to produce high-quality plant-based meat alternatives. His research on the flow properties of soft materials enables him to imitate the marbling of real steaks. ?

ETH researchers are using artificial intelligence to improve quality management in digital production processes. The team has succeeded in halving the proportion of defective products in an experiment with the semiconductor manufacturer Hitachi Energy.

ETH researchers Michele Gregorini and Philippe Bechtold have developed a PCR testing device that can easily be used outside the lab ¨C and that takes less than 30 minutes to deliver results. Now the two young entrepreneurs are focusing their efforts on getting the device approved for medical use.

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.

Load-bearing, lightweight and now also recyclable: researchers led by Professor Paolo Ermanni were presented with the Spark Award in recognition of an innovative process for production of sustainable composite materials. ETH Zurich awarded the prize to their promising invention, with this year marking the tenth time the award has been given.

By cleverly combining different technologies, manufacturers can produce plastic that is climate neutral over its entire life cycle. A new study by an international team of researchers has shown that this combination requires less energy than alternatives and costs the same ¨C or even less.

The climate action potential of carbon capture during the processing of biomass feedstock is considerable, ETH Zurich researchers have calculated. If this potential is to be fully exploited in practice, however, there are challenges to overcome.

An interdisciplinary research team from ETH Zurich is developing the Nexus-e modelling platform in a project supported by the Swiss Federal Office of Energy. The platform facilitates the analysis of how technological, economic and regulatory developments affect the energy system of the future.

Carbon-neutral aviation is possible, but in future, aircraft are likely to continue to be powered by fossil fuels. The CO₂ they emit must be systematically stored underground. This is the most economical of various approaches that ETH researchers have compared in detail.

An extraordinary year is drawing to a close. ETH News takes a look back at the highlights that emerged amidst difficult and unsettling times, at ingenious ideas, fascinating science and solidarity in action during ¨C and despite ¨C the coronavirus pandemic.

Sustainable high-tech materials are expensive. However, this may soon change. Through his ETH Pioneer Fellowship, Christoph Schneeberger is developing a process that enables more efficient production of fibre-reinforced plastics.

Biodegradable plastics are very much on trend. But there are still very few sustainable alternatives for products containing foamed plastic. ETH Pioneer Fellow Zuzana Sediva is developing a process that could one day be used to make shoe soles and yoga mats from organic waste.

Researchers at ETH Zurich have coaxed tiny spheres made of polymer gels into forming complex patterns by themselves through a two-step process. Surfaces with tailor-made optical and mechanical properties could be realized in this way.

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.

Right now, the 3D printers at the ETH spin-off Spectroplast are working at full capacity as never before: the young company has started producing silicone attachments for breathing masks on behalf of medical companies.

ETH researchers analysed various possibilities for reducing the net CO₂ emissions of the chemical industry to zero. Their conclusion? The chemical industry can in fact have a carbon-neutral future.

Researchers from ETH Zurich and the Swiss Federal Laboratories for Materials Science and Technology (Empa) have set a new world record: they 3D printed complex objects with higher cellulose content than that of any other additively manufactured cellulose-based parts. To achieve this, they used a clever trick.

Researchers at ETH have produced a gel from cellulose fibres and biodegradable nanoparticles that liquifies when pressed through the nozzle of a 3D printer, but then quickly returns to its original shape. Their invention paves the way for personalised biomaterial implants.

ETH researchers have created an incredibly lightweight 18-carat gold, using a matrix of plastic in place of metallic alloy elements.

The year 2019 has certainly been a busy one at ETH. A new president took office and the second Sci-Tech Oscar was awarded, along with other major prizes, but there were also plenty of inventions and topics for discussion.

Researchers in Zurich have reproduced Michelangelo¡¯s David as a miniature in metal. Their achievement highlights the potential of a special 3D printing method developed at ETH.

Automation and digitisation of industry and society, new approaches to sustainable chemistry, and the influence of bacteria on health ¨C these are the topics covered by the three new National Centres of Competence led or co-led by ETH Zurich.

ETH researchers used a 3D printing process to produce complex and highly porous glass objects. The basis for this is a special resin that can be cured with UV light.

Researchers at ETH Zurich have developed a new method for producing malleable microstructures ¨C for instance, vascular stents that are 40 times smaller than previously possible. In the future, such stents could be used to help to widen life-threatening constrictions of the urinary tract in foetuses in the womb.

CO₂-neutral synthetic fuels are technically feasible today and the best promise for decarbonizing aviation. The right policy instruments could turn promise into reality, writes Anthony Patt.

An ETH student became fascinated by diving robots while writing his Matura paper. Three years on, with a group of like-minded enthusiasts, he is taking part in one of the largest competitions for underwater robots ¨C the first team ever from Switzerland.

Microcontaminants place a considerable burden on our water courses, but removing them from wastewater requires considerable technical resources. Now, ETH researchers have developed an approach that allows the efficient removal of these problematic substances.

ETH material researchers are developing a method with which they can coat the droplets with controlled interfacial composition and coverage on demand in an emulsion in order to stabilise them. In doing so they are fulfilling a long-held dream of researchers and industry.

Three ETH alumni have developed a 3D printer capable of manufacturing components from carbon fiber composites. Their ETH spin-off, 9T Labs, could bring a breakthrough for the manufacturing and utilization of extremely lightweight and strong parts.

Digital fabrication techniques for buildings and breathtaking concrete roofs, a heart made of silicone, and a new degree programme in medicine; in 2017, teaching and research at ETH Zurich were characterised by new ventures and a pioneering spirit.

ETH researchers have developed a biocompatible ink for 3D printing using living bacteria. This makes it possible to produce biological materials capable of breaking down toxic substances or producing high-purity cellulose for biomedical applications.

How can students from a wide range of departments grow as a team and work together to solve a problem in six days? ETH News shadowed a student at this year's edition of ETH Week, entitled "Manufacturing the future".

Scientists use the term 4D printing to refer to the simple production of objects that can transform their shape at different times. Researchers at ETH Zurich have now taken this approach one major step further by developing a construction principle that can produce load-bearing and predictable structures.

Developing new things together and effecting change ¨C that's what gets Moritz Mussgnug out of bed in the morning. The mechanical engineer manages to juggle his doctoral thesis with a startup and a project to optimise the production of walnut oil for people in Nepal.

Creativity, skill and most of all team spirit are what matter in the innovation and focus projects undertaken in the Department of Mechanical and Process Engineering at ETH Zurich. Students spend months working on their technical innovations, which they will present today in the main ETH building.

ETH scientists have developed a membrane that protects medical implants from unwanted encapsulation by connective tissue. The researchers founded a spin-off company just over a year ago and have now been awarded funding by the start-up competition Venture Kick.

Researchers at ETH Zurich have manufactured transparent electrodes for use in touchscreens using a novel nanoprinting process. The new electrodes are some of the most transparent and conductive that have ever been developed.

Unstable crude oil prices and limited oil resources have made the production of petrochemicals from methanol increasingly popular ¨C above all in China. Scientists at ETH Zurich have now deciphered the complex chemistry behind the start of this process.

Eine der gr?ssten hygienischen Errungenschaften der letzten 150 Jahre ist zweifellos die Abwasserentsorgung ¨¹ber die Kanalisation. Doch diese Technologie allein kann das weltweite Abwasserproblem nicht l?sen. Wir brauchen neue Verfahren, um Abwasser hierzulande und in Entwicklungsl?ndern ressourcenschonend zu behandeln.

Less time, fewer errors and simpler to perform. That is what is promised by this new approach to analysing proteins in the lab. Tina Hovestadt received a Pioneer Fellowship from ETH Zurich for this project.

At its meeting of 8/9 July 2015, the ETH Board appointed six professors at ETH Zurich in accordance with the application submitted by ETH Zurich President Lino Guzzella.

Just as the size of transistors continues to decrease, laboratories are also expected to shrink until they eventually fit on a chip. ETH Zurich researchers have developed a system of using sound waves to move, merge or sort minuscule droplets with reagents or cells in a controlled manner.

This year¡¯s R?ssler Prize has been awarded to David J. Norris. The materials engineering professor in the Department of Mechanical and Process Engineering researches nano-optics at the interface of chemistry, materials and engineering.

Every year, the Department of Mechanical and Process Engineering (D-MAVT) awards the Aurel Stodola Medal to an outstanding scientist in the discipline. Mauro Ferrari, who researches and teaches in the field of nanomedicine at Houston Methodist Hospital in Texas, is honoured this year. He will speak about his research on April 1 at ETH Zurich.

A training centre, not a games room: students and SBB trainees alike learn their trade in the ETH railway operations laboratory.

Polylactic acid is a degradable plastic used mostly for packaging. To meet the rising demand, ETH researchers have developed an eco-friendly process to make large amounts of lactic acid from glycerol, a waste by-product in the production of biodiesel.

When crude oil is refined to fuels and chemicals, help is at hand ¨C in the form of so-called catalysts. Scientists now provide a reference parameter for the performance of an important class of catalysts for petrochemical production.