Cellulose nanocrystals (CNCs) are nanoscale crystallites derived from plant-based cellulose. They are composed of linear chains of glucose molecules that are tightly bound together, forming a highly ordered, crystalline structure. CNCs possess impressive physical and chemical properties, such as high strength, flexibility, and a high aspect ratio (length/width). They are also non-toxic, biodegradable, and renewable, making them an attractive alternative to synthetic polymers for a wide range of applications.