Researchers at the Hildesheim, Holzminden, Göttingen University of Applied Sciences (HAWK) are investigating how ordinary water can be "transformed" for a limited time into a substance with a similar effect to a biocide and then become water again in the project "PEaK: PAL - possible applications on cultural assets". The key is treatment with plasma, which turns liquids into so-called PAL (plasma activated liquids).
Biocides are used to combat organisms that cause damage to cultural assets. However, these are often active for a long time, remain on the material and in the environment and cause long-term damage. PAL, on the other hand, have the potential to kill organisms without damaging the environment. However, how it works on algae, molds and harmful insects and also on the materials to be protected is still largely unexplored. The initial results of the project have now been presented at a kick-off event. By July 2026, the HAWK research team will compile a broad data basis and develop a discussion paper for the use of PAL technology on cultural assets together with monument conservators.
