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Title: Directed Self–Assembly Pathways of Active Colloidal Clusters

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [1];  [2]
  1. Univ. of Illinois, Urbana, IL (United States)
  2. Univ. of Illinois, Urbana, IL (United States); UNIST, Ulsan (South Korea)

Abstract Despite the mounting interest in synthetic active particles, too little is known about their assembly into higher‐order clusters. Here, mixing bare silica particles with Janus particles that are self‐propelled in electric fields, we assemble rotating chiral clusters of various sorts, their structures consisting of active particles wrapped around central “hub” particles. These clusters self‐assemble from the competition between standard energetic interactions and the need to be stable as the clusters rotate when the energy source is turned on, and fall apart when the energy input is off. This allows one to guide the formation of intended clusters, as the final structure depends notably on the sequence of steps in which the clusters form.

Research Organization:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE
Grant/Contract Number:
FG02-07ER46471
OSTI ID:
1875135
Alternate ID(s):
OSTI ID: 1400740
Journal Information:
Angewandte Chemie (International Edition), Vol. 55, Issue 17; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 80 works
Citation information provided by
Web of Science

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Cited By (24)

Molecularly imprinted polymers fabricated using Janus particle-stabilized Pickering emulsions and charged monomer polymerization journal January 2018
Hydrodynamic assembly of active colloids: chiral spinners and dynamic crystals text January 2018
Which interactions dominate in active colloids? journal February 2019
Self-assembly of active amphiphilic Janus particles text January 2021
Electrostatic-attraction-induced high internal phase emulsion for large-scale synthesis of amphiphilic Janus nanosheets journal January 2019
Diffusiophoretic design of self-spinning microgears from colloidal microswimmers journal January 2018
Shape-directed dynamics of active colloids powered by induced-charge electrophoresis journal January 2018
Chemotaxis in a binary mixture of active and passive particles journal June 2019
Directed assembly of active colloidal molecules journal March 2019
Light-Controlled Swarming and Assembly of Colloidal Particles journal February 2018
Self-assembly in two-dimensional mixtures of Janus disks and isotropic particles journal January 2019
Self-assembly of Janus disks confined in a slit journal September 2019
Light-controlled Assembly of Active Colloidal Molecules text January 2018
Reconfigurable assembly of charged polymer-modified Janus and non-Janus particles: from half-raspberries to colloidal clusters and chains journal January 2019
Dissipative Self-Assembly of Anisotropic Nanoparticle Chains with Combined Electrodynamic and Electrostatic Interactions journal September 2018
Reconfiguring active particles by electrostatic imbalance journal July 2016
Shape-encoded dynamic assembly of mobile micromachines journal June 2019
Self-Assembly of Colloidal Molecules due to Self-Generated Flow journal July 2017
Active apolar doping determines routes to colloidal clusters and gels journal October 2018
Fuel‐Free Micro‐/Nanomotors as Intelligent Therapeutic Agents journal April 2019
Capillary assembly as a tool for the heterogeneous integration of micro- and nanoscale objects journal January 2018
Opto-thermophoretic assembly of colloidal matter journal September 2017
Review: Interactions of Active Colloids with Passive Tracers journal August 2019
Active colloids as mobile microelectrodes for unified label-free selective cargo transport journal February 2018

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