Technology

Robotic wheelchairs may soon be able to move through crowds smoothly and safely. As part of CrowdBot, an EU-funded project, EPFL researchers are exploring the technical, ethical and safety issues related to this kind of technology. The aim of the project is to eventually help the disabled get around more easily.

Cryo-electron microscopy is still a comparatively new method for elucidating the three-dimensional structure of biomolecules. It can help researchers resolve many open questions about light-sensitive proteins, rapidly and with high precision.

Kurt Heutschi, a senior scientist in Empa's Acoustics / Noise Control lab, explains what noise does and why we perceive sound so differently.

Radiation therapy is one of the cornerstones of cancer therapy. However, some types of tumor respond little or hardly at all to radiation. If it were possible to make tumor cells more sensitive, treatment would be more effective and gentler. Empa and ETH Zurich researchers have now succeeded in using metal oxide nanoparticles as "radiosensitizers" – and in producing them on an industrial scale.

In evolution, the development of light-sensitive proteins was a momentous step: it’s only thanks to them that we can see. The large research facilities at PSI are helping scientists unravel the last major secrets concerning these extraordinary cellular components. The researchers have another goal as well: selectively switching processes in cells on and off with the help of light receptors.