Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 141, Issue 19, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4900720
Keywords
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Funding
- National Science Foundation [DMR-1408259, ACI-1053575]
- Juan de la Cierva Fellowship
- Marie Curie Integration Grant [322326-COSAAC-FP7-PEOPLE-CIG-2012]
- National Science Foundation Graduate Research Fellowship [DGE-07-07425]
- [FIS2013-43209-P]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1408259] Funding Source: National Science Foundation
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Using numerical simulations, we study how a solution of small active disks, acting as depletants, induces effective interactions on large passive colloids. Specifically, we analyze how the range, strength, and sign of these interactions are crucially dependent on the shape of the colloids. Our findings indicate that while colloidal rods experience a long-ranged predominantly attractive interaction, colloidal disks feel a repulsive force that is short-ranged in nature and grows in strength with the size ratio between the colloids and active depletants. For colloidal rods, simple scaling arguments are proposed to characterize the strength of these induced interactions. (c) 2014 AIP Publishing LLC.
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