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Supracolloidal Reaction Kinetics of Janus Spheres

Journal Article · · Science
 [1];  [2];  [2];  [2];  [3];  [2]
  1. Univ. of Illinois, Urbana, IL (United States); University of Illinois
  2. Univ. of Illinois, Urbana, IL (United States)
  3. Northwestern Univ., Evanston, IL (United States)
Clusters in the form of aggregates of a small number of elemental units display structural, thermodynamic, and dynamic properties different from those of bulk materials. We studied the kinetic pathways of self-assembly of “Janus spheres” with hemispherical hydrophobic attraction and found key differences from those characteristic of molecular amphiphiles. Experimental visualization combined with theory and molecular dynamics simulation shows that small, kinetically favored isomers fuse, before they equilibrate, into fibrillar triple helices with at most six nearest neighbors per particle. Furthermore, the time scales of colloidal rearrangement combined with the directional interactions resulting from Janus geometry make this a prototypical system to elucidate, on a mechanistic level and with single-particle kinetic resolution, how chemical anisotropy and reaction kinetics coordinate to generate highly ordered structures.
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; NSF
Grant/Contract Number:
FG02-07ER46471
OSTI ID:
1876403
Journal Information:
Science, Journal Name: Science Journal Issue: 6014 Vol. 331; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

References (25)

Molecular Mimetic Self-Assembly of Colloidal Particles journal March 2010
Size-Dependent Structural Evolution and Chemical Reactivity of Gold Clusters journal January 2007
On the Theory of Micellization Kinetics journal November 2005
Carbon nanotubes: opportunities and challenges journal March 2002
Anomalously Large Equilibrium Clusters of Colloids journal November 2001
One-Dimensional Cluster Growth and Branching Gels in Colloidal Systems with Short-Range Depletion Attraction and Screened Electrostatic Repulsion journal November 2005
Clusters of Amphiphilic Colloidal Spheres journal February 2008
Onset of heterogeneous crystal nucleation in colloidal suspensions journal March 2004
Anisotropy of building blocks and their assembly into complex structures journal August 2007
Self-assembly of amphiphilic peanut-shaped nanoparticles journal February 2010
Hierarchical self-assembly of asymmetric amphiphatic spherical colloidal particles journal August 2009
Phase Diagram of Janus Particles journal November 2009
Dynamical Arrest in Attractive Colloids: The Effect of Long-Range Repulsion journal May 2005
On the Origins of Morphological Complexity in Block Copolymer Surfactants journal April 2003
Role of Intermolecular Forces in Defining Material Properties of Protein Nanofibrils journal December 2007
Imaging Nucleophilic Substitution Dynamics journal January 2008
The Free-Energy Landscape of Clusters of Attractive Hard Spheres journal January 2010
Step-Growth Polymerization of Inorganic Nanoparticles journal July 2010
Tubular Packing of Spheres in Biological Fine Structure journal August 1973
Step-Growth Polymerization of Inorganic Nanoparticles text January 2010
Hierarchical Self-Assembly of Asymmetric Amphiphatic Spherical Colloidal Particles text January 2009
Self-assembly of amphiphilic peanut-shaped nanoparticles text January 2009
Phase diagram of Janus Particles text January 2009
Dynamical Arrest in Attractive Colloids: The Effect of Long-Range Repulsion text January 2004
One-dimensional cluster growth and branching gels in colloidal systems with short-range depletion attraction and screened electrostatic repulsion text January 2005

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Polymerization-like kinetics of the self-assembly of colloidal nanoparticles into supracolloidal polymers journal January 2018
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Reconfigurable assembly of charged polymer-modified Janus and non-Janus particles: from half-raspberries to colloidal clusters and chains journal January 2019
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