Publications by Ivy D Vo

Publications by authors named "Ivy D Vo"

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Can Electroactive Tracer Molecules Reveal Viscoelastic Structure by Measuring Non-Fickian Diffusion?

Lei Wu Alfonso Ramirez Ivy D Vo Ellinor Haglund Julio C Alvarez

Angew Chem Int Ed Engl

February 2025

We find that viscous and viscoelastic fluids are distinguishable by gauging Non-Fickian diffusion of dissolved electroactive molecules. Typically, such fluids are differentiated by measuring the mean-squared-displacement <Δr> of embedded tracer particles (~1 μm) diffusing over time (t). From the relationship <Δr>=6Dt (D=particle diffusivity), log plots of <Δr>vs.

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