The role of particle shape in active depletion.

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.

• Publication year

  2014

• Venue

  Journal of Chemical Physics

• Publication date

  2014-07-24

• Fields of study

  Materials Science, Medicine, Physics

• Identifiers
  DOI 10.1063/1.4900720arXiv 1407.6743PMID 25416906
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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