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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/043/0183

    • Keywords

       

      Diffusiophoresis; colloids; self-propulsion; assembly; active cluster.

    • Abstract

       

      We present a simple chemical strategy for the formation of a self-propelling cluster via the process of capture and assembly of passive colloids on the surface of a chemically active colloid. The two species of colloids that are isotropic and Brownian otherwise interact to form propelling clusters.With the help of coarse-grained numerical simulations,we show that a chemically active colloid can induce diffusiophoretic motility to nearby chemically inert colloids towards itself. This propulsion and then self-assembly can then lead to the formation of active clusters. We observe the formation of propelling dimers, trimers, tetramers, etc. depending on the chemical activity and size of the colloids.

    • Author Affiliations

       

      PRABHA CHUPHAL1 ISHWAR VENUGOPAL1 SNIGDHA THAKUR1

      1. Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India

    • Dates

       
      Published
      1 August 2020
      Manuscript received
      3 July 2019
      Accepted
      1 August 2020
      Final version published online
      1 August 2020

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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