गोलाकार परिरोध के तहत एक कोलाइड-बहुलक मिश्रण में प्रावस्था व्यवहार और गतिशीलता
गोलाकार परिरोध के तहत एक कोलाइड-बहुलक मिश्रण में प्रावस्था व्यवहार और गतिशीलता
Abstract:
From studies via Molecular Dynamics simulations, we report results on structure and dynamics in mixtures of active colloids and passive polymers that are confined inside a spherical container with a repulsive boundary. All interactions in the fully passive limit are chosen in such a way that in equilibrium coexistence between colloid-rich and polymer-rich phases occurs.For most part of the studies the chosen compositions give rise to Janus-like structure: nearly one side of the sphere is occupied by the colloids and the rest by the polymers.This partially wet situation mimics approximately a neutral wall in the fully passive scenario. Following the introduction of a velocity- aligning activity to the colloids, the shape of the polymer-rich domain changes to that of an ellipsoid, around the long axis of which the colloid-rich domain attains a macroscopic angular momentum. In the steady state, the orientation of this axis evolves via diffusion, magnitude of which depends upon the strength of activity,but only weakly.
