2022 Annual Meeting

(243e) Microstructural Dynamics of Rod-like Viruses at High Shear Via Capillary Rheo-SANS

Authors

Paul F. Salipante, National Institute of Standards and Technology
Ryan P. Murphy, University of Delaware
Katie Weigandt, National Institute of Standards & Technology, MS 6
Steven D. Hudson, National Institute of Standards and Technology
Rod-like structures can be found in solutions ranging from suspensions of synthetic filaments to worm-like surfactant solutions. These rods are known to align with the application of shear, leading to strong shear-thinning effects, and there is an ongoing effort to understand how these microstructural interactions and orientation changes are reflected in the resulting rheology. Using semi-dilute solutions of filamentous Fd bacteriophage, we use capillary rheo-SANS to simultaneously capture rheological and microstructural dynamics at shear rates up to three decades higher than previously realized experimentally, and compare to dilute theory.