Journal
SOFT MATTER
Volume 11, Issue 31, Pages 6187-6191Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sm00827a
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Funding
- Deutsche Forschungsgemeinschaft within the Schwerpunktsprogramm Microswimmers [SPP 1726]
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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.
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