Research highlight in Physical Review Letters

Interactions of colloidal particles can be tuned over a wide range. Truly long-range interactions (like gravity) are possible through solvent flow. In this work we demonstrate that colloidal ion reservoirs produce such flows that are well-described as a conservative potential, predicting the dynamics and structure of clusters of a few particles ("molecules"). Read article...

"Self-assembly of colloidal molecules due to self-generated flow" by R. Niu, T. Palberg, and T. Speck, published in Phys. Rev. Lett. 119, 028001 (2017)