Seffah, Karima2023-09-072023-09-0720192170-161Xhttp://hdl.handle.net/123456789/15179Our present study consists of the formulation and characterization of suspensions of double-walled carbon nanotubes (CNTs) using two biopolymers of natural origin (lecithin and proteins). Soy lecithin and sodium caseinate are two biodegradable and non-toxic biopolymers, they are widely used as an ingredient in the food industry. The operating conditions of dispersion such as the power and the duration of sonication as well as the dispersant/NTCs report/ratio, were optimized. Stability was demonstrated by the Turbiscan technique, and confirmed by zeta potential measurements over time. The Turbiscan has proven to be a non-invasive, efficient and convenient tool for analyzing the stability of CNTs suspensions.enBiopolymèreDouble walled carbon nanotubesTurbiscanArticle