5-6 months - Starting in February/March 2025 - The use of materials derived from plant biomass (cellulose, lignin) for high-value-added applications, such as biomedical or food packaging, is an important part of our laboratory's activities. Characterising the antibacterial properties of these materials is essential. Within our research unit, a class 2 (L2) microbiology laboratory is available and has already enabled us to set up protocols for characterising antibacterial properties in previous projects1–3. Current research projects also require antimicrobial characterisation. These include the Polka project, which aims to formulate antibacterial nanoparticles based on lignin, and the Napkins project, one of whose objectives is to formulate super-absorbent, bio-based polymers for use in menstrual protection.