The initiative aims to develop water treatment membranes using renewable materials while reducing environmental impact. The research employs surface functionalization techniques, specifically coatings, to enhance commercial membrane performance without altering bulk material properties. The project leverages nanometric-scale materials including nanocellulose and chitin nanocrystals, which are promising options for different types of surface functionalization, including antifouling, antimicrobial, contaminant adsorption, and mechanical enhancement. The work addresses global water scarcity by substituting petroleum-derived products with bio-based alternatives.