Two-dimensional diffusiophoretic colloidal banding: optimizing the spatial and temporal design of solute sinks and sources

RR Raj, CW Shields, A Gupta - Soft Matter, 2023 - pubs.rsc.org
Diffusiophoresis refers to the phenomenon where colloidal particles move in response to
solute concentration gradients. Existing studies on diffusiophoresis, both experimental and …

Motion of an active bent rod with an articulating hinge: exploring mechanical and chemical modes of swimming

RR Raj, A Ganguly, C Becker, CW Shields IV… - Frontiers in …, 2023 - frontiersin.org
Swimming at the microscale typically involves two modes of motion: mechanical propulsion
and propulsion due to field interactions. During mechanical propulsion, particles swim by …

Colloidal diffusiophoresis in crossed electrolyte gradients: Experimental demonstration of an “action-at-a-distance” effect predicted by the Nernst-Planck equations

I Williams, PB Warren, RP Sear, JL Keddie - Physical Review Fluids, 2024 - APS
In an externally imposed electrolyte (salt) concentration gradient, charged colloids drift at
speeds of order one micrometre per second. This phenomenon is known as …

[HTML][HTML] Artificial chemotaxis under electrodiffusiophoresis

CAS Batista, K Wang, H Blake… - Journal of Colloid and …, 2025 - Elsevier
Hypothesis Through a large parameter space, electric fields can tune colloidal interactions
and forces leading to diverse static and dynamical structures. So far, however, field-driven …

Drop-in additives for suspension manipulation: Colloidal motion induced by sedimenting soluto-inertial beacons

A Banerjee, H Tan, TM Squires - Physical Review Fluids, 2020 - APS
Soluto-inertial (SI) suspension interactions involve nonequilibrium colloidal migration over
millimeters, driven by “beacons” that establish long-lasting chemical gradients. Previous …

Diffusiophoretic Colloidal Transport in Complex Fluids

A Yang - 2024 - search.proquest.com
Complex fluids and colloidal systems are ubiquitous in chemical formulations and
manufacturing. Often, transport of colloidal actives is important for the proper function and …