Formation, compression and surface melting of colloidal clusters by active particles
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/21247
- Research Paper 
Royal Society of Chemistry
We demonstrate with experiments and numerical simulations that the structure and dynamics of a suspension of passive particles is strongly altered by adding a very small (<1%) number of active particles. With increasing passive particle density, we observe first the formation of dynamic clusters comprised of passive particles being surrounded by active particles, then the merging and compression of these clusters, and eventually the local melting of crystalline regions by enclosed active particles. © The Royal Society of Chemistry 2015.