Diffusiophoresis-enhanced instabilities

Diffusiophoresis refers to the movement of colloidal particles in response to concentration gradients of solutes. It provides a convenient mechanism to transport microparticles in regions where convective modes of transport are not possible. Prior work in the literature has utilized it to create membraneless water filters, conduct low-cost zeta potential measurements, and explain the removal of dirt during laundry, among other applications. In this talk, I will emphasize that diffusiophoresis may be more prevalent than generally assumed. In particular, I will focus on the impact of diffusiophoresis to enhance and/or induce (i) Rayleigh-Taylor instabilities, and (ii) reaction-diffusion instabilities or Turing patterns.