Ionic self-phoresis maps onto correlation-induced self-phoresis

The recently identified mechanism of correlation-induced (self-)chemophoresis highlights that the motion of a catalytically active particle in response to chemical gradients generated by the activity involves a significant activity-dependent response that lies beyond linear-response theory. Here we address the experimentally relevant case of “ionic self-phoresis”, occurring when the particle exchanges ions with an ambient electrolyte solution, and show that this novel conceptual framework provides a unifying perspective within which recent predictions are recovered and extended as particular instances of the correlation-induced mechanism. Conversely, ion-phoretic particles are identified as candidates for experimental investigations into the rich variety of motility patterns predicted by the correlation-induced (self-)phoresis.

• Publication year

  2024

• Venue

  Europhysics letters

• Publication date

  2024-04-25

• Fields of study

  Physics, Chemistry

• Identifiers
  DOI 10.1209/0295-5075/ae2d8farXiv 2404.16435
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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