Interfacial Properties of Chitosan in Interfacial Shear and Capsule Compression.
Matthew D Biviano, Lukas J Böni, Joseph D Berry, Peter Fischer, Raymond R Dagastine
ACS Applied Materials and Interfaces | American Chemical Society | Published : 2020
The time-dependent behavior of surface-active adsorption layers at the oil/water interface can dictate emulsion behavior at both the micro- and macroscale. In addition, self-healing behavior of the adsorption layer may benefit emulsion stability subject to large deformation under processing or during final application. We explore the behavior of chitosan, a known hydrophilic emulsifier, which forms nanoparticle aggregates when the concentration of acetate buffer exceeds 0.3 M. We observe a Pickering adsorption layer building and strain-dependent behavior of the chitosan at the medium chain triglyceride oil/water interface. We compare this to the behavior of identical chitosan layers coated o..View full abstract
Awarded by Australian Research Council
M.D.B., J.D.B., and R.R.D. acknowledge funding from Australian Research Council (ARC), The University of Melbourne and Mondelez Australia for providing funding through Industrial Transformation Research Hub (ITRH, Project ID: IH120100053). M.D.B. acknowledges the funding from the Robert Bage Scholarship. L.J.B. and P.F. acknowledge funding from ETH Zurich (Grant ETH-1914-1).