European researchers are working on the REMEDY project—“living tattoos” for buildings. This is not just unusual facade artwork, but an innovative biocoating: a two-layer system consisting of decorative paint and a special film with microorganisms. The new approach is intended to clean the air of carbon dioxide, self-repair in case of microcracks, protect building facades from pathogens, and even glow in the dark thanks to bioluminescent bacteria. In this way, buildings would not only change the look of cities, but also contribute to the environment.

Researchers plan to apply these “tattoos” using a dedicated inkjet printing method created specifically for depositing living microorganisms onto building materials. The team monitors that the microorganisms remain functional and resilient under city conditions. According to the scientists, these architectural “tattoos” could change how buildings are repaired and decorated, combining art, science, and care for the environment.