Welcome to PSI, the largest research institute for natural and engineering sciences in Switzerland.
Recent highlights from our research
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Pollution from aircraft
Researchers at PSI have measured how flight operations at Zurich Airport affect the atmospheric concentration of ultrafine particulate matter. In the process, they also found lubricating oil compounds in the air.
AiiDAlab: software that drives research forward
The software platform AiiDAlab was developed for computer simulations in materials research. It’s now becoming clear that it's also useful in many other areas, such as atmospheric research, controlling experiments and teaching.
Cooling without pumps: New measurement data for modular reactors
In an international collaboration, researchers at PSI have, for the first time, collected high-resolution measurement data from passive cooling systems for small modular nuclear reactors – an important basis for developing future generations of reactors.
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Current upgrade projects and research initiatives
Together with industry to innovation
PSI and NUKEM Sign Memorandum of Understanding
The Paul Scherrer Institute PSI and NUKEM Technologies Engineering Services GmbH (NUKEM) have signed a Memorandum of Understanding (MoU) to establish a close research and development collaboration focused on advanced nuclear fuel and reactor technologies.
PSI Founder Fellowship for AI platform and solid-state batteries
PSI researchers Mohsen Sadr and Mohammadhossein Montazerian are receiving financial support and guidance for their business ideas through the PSI technology transfer team.
Swiss PIC technology transfer centre is inaugurated
Jointly founded by scientific and industrial partners with PSI researchers: the Swiss Photonics Integration Center celebrated its inauguration on 24 November 2025.
The people at PSI
Where analysis meets flavours
Some see brewing as an art, others as a science – Luc Van Loon combines both these virtues at his brewery. With the nose of a sommelier and the precision of a chemist, the former PSI researcher creates world-class beers.
Engineering skill and perseverance
Credit for the on-time completion of the major SLS 2.0 upgrade project is due in part to a team of dedicated electrical engineers.
PSI’s cement whisperer
John Provis has dedicated his research career to a building material that is far more exciting than you might think.