Elastically-mediated collective organisation of magnetic microparticles

Abstract

Gels are soft elastic materials made of a three-dimensional cross-linked polymer network and featuring both elastic and dissipative responses under external mechanical stimuli. Here we investigate how such gels mediate...

Large Scale Zigzag Pattern Emerging from Circulating Active Shakers

“…While the bulk behavior of such fluids has been the matter of much research to date, emergent directions point towards investigating how such fluids mediate the organization of dispersed microscopic particles. Active [12][13][14][15][16], passive [17][18][19] or externally driven [20][21][22][23][24][25] particles in viscoelastic fluids are excellent model systems for many-body organization in elastic materials, while displaying promising applications in microrheology [26,27], tissue engineering [28][29][30] or microrobotics [31,32]. Indeed fluid elasticity can directly affect the propulsion behavior of microswimmers [33][34][35][36][37][38][39][40], or even be used to obtain net motion via streaming flow when pair of particles interact [36,41,42].…”