A research team from Thailand has developed water-borne nanocomposite coatings based on cellulose nanocrystals (CNCs) and trimethyl chitosan (TMC) particles. Furthermore, functionalised TMC particles were obtained via in-situ polymerisation, allowing the design of different core and shell types with tailored functionalities. Reading tip: Bio-based coatingsThe EC Tech Report “Bio-based Coatings” is a hand-picked compilation of all the key aspects concerning bio-based coatings, offering the latest technical developments. These bio-based, water-borne systems offer sustainable solutions for cultural heritage conservation but could also be extended to other functional surface coating applications. Source: Lekjinda, K. et al., Waterborne multilayer coatings from cellulose nanocrystals and trimethyl chitosan-based particles for potential protective coating.