Journal
PHYSICAL REVIEW E
Volume 95, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.95.042609
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Funding
- State of Arizona Technology and Research Initiative Fund (TRIF)
- National Science Foundation through the Penn State Center for Nanoscale Science [DMR-1420620]
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We experimentally investigated the self-assembly of chemically active colloidal Janus spheres into dimers. The trans-dimer conformation, in which the two active sites are oriented roughly in opposite directions and the particles are osculated at their equators, becomes dominant as the hydrogen peroxide fuel concentration increases. Our observations suggest high spinning frequency combined with little translational motion is at least partially responsible for the stabilization of the trans-dimer as activity increases.
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