Adsorption, Structure, and Rheology of Cellulose Nanocrystals at the Air-Water Interface

Abstract

Cellulose nanocrystals (CNCs) are charged, rod-like nanoparticles which have emerged as a biological alternative for the Pickering stabilization of fluid interfaces. CNC-stabilized foams and emulsions show extraordinary stability, and their biocompatible nature allows their use in biomedical, cosmetic, and food applications. Despite great interest and successful application in foams and emulsions, the underlying mechanisms of adsorption remained long unclear. Here, we present our recent findings on the adsorption, interfacial layer structure, and rheology of CNCs at the air-water (A/W) interface.