Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

On the Interfacial Assembly of Anisotropic Amphiphilic Janus Particles

Journal Article · · Advanced Functional Materials
 [1];  [1];  [1];  [2]
  1. Univ. of Massachusetts, Amherst, MA (United States)
  2. Univ. of Massachusetts, Amherst, MA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
It has been shown both theoretically and experimentally that amphiphilic Janus particles are the most effective solid surfactants to stabilize interfaces. In most cases, the Janus particles investigated have uniform morphologies with Janus boundaries dividing the particle into halves. However, there are many examples of Janus particles where the hydrophilic and hydrophobic domains are not equally distributed. The effects of this uneven domain distribution on the mechanism and kinetics of Janus particle assembly, and final equilibrium state are not well-understood. Dynamic pendant drop tensiometry offers a means to probe both the equilibrium assembly and the kinetics and mechanism of assembly. Here, in this work, the interfacial kinetics and assembly of spherical anisotropic Janus particles are investigated using dynamic pendant drop tensiometry. Systematic studies quantifying the time-dependent interfacial behavior as a function of Janus particle morphology, chemical composition, particle concentration, and NaOH and HCl concentration are performed. These studies shed light on the assembly mechanism of more complex Janus particle morphologies and highlight their effectiveness as interface stabilizers.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2429589
Alternate ID(s):
OSTI ID: 2229789
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 11 Vol. 34; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (90)

Hierarchical Assemblies of Polymer Particles through Tailored Interfaces and Controllable Interfacial Interactions journal December 2020
Interfacially Super‐Assembled Asymmetric and H2O2 Sensitive Multilayer‐Sandwich Magnetic Mesoporous Silica Nanomotors for Detecting and Removing Heavy Metal Ions journal March 2021
Recyclable 2D Colloid Surfactants with High Catalytic Activities at Pickering Emulsion Interfaces journal February 2022
Column‐to‐Beam Structure House Inspired MXene‐Based Integrated Membrane with Stable Interlayer Spacing for Water Purification journal February 2022
True Bulk Synthesis of Janus Objects by Bipolar Electrochemistry journal July 2012
Rational Design and Synthesis of Janus Composites journal March 2014
Structured Liquids with pH-Triggered Reconfigurability journal May 2016
Reconfigurable Printed Liquids journal March 2018
Building Reconfigurable Devices Using Complex Liquid–Fluid Interfaces journal February 2019
All‐Liquid Reconfigurable Electronics Using Jammed MXene Interfaces journal February 2023
Emulsion Polymerization Using Janus Particles as Stabilizers journal January 2008
Janus Microspheres for a Highly Flexible and Impregnable Water-Repelling Interface journal March 2010
Self‐Assembly of MXene‐Surfactants at Liquid–Liquid Interfaces: From Structured Liquids to 3D Aerogels journal October 2019
The Pristine Oil/Water Interface: Surfactant-Free Hydroxide-Charged Emulsions journal July 2004
A Strategy for Separating and Recycling Solid Catalysts Based on the pH-Triggered Pickering-Emulsion Inversion journal June 2013
Reconfiguration and Reorganization of Bottlebrush Polymer Surfactants journal March 2022
In Situ Hydrolysis of Block Copolymers at the Water‐Oil Interface journal April 2022
Flow Pickering Emulsion Interfaces Enhance Catalysis Efficiency and Selectivity for Cyclization of Citronellal journal April 2017
Fabrication, Assembly, and Application of Patchy Particles journal January 2010
Recent Studies of Pickering Emulsions: Particles Make the Difference journal June 2016
Investigating Time‐Dependent Active Motion of Janus Micromotors using Dynamic Light Scattering journal October 2021
Temperature Dependence of the Electrokinetic Properties of Two Disparate Surfaces journal September 1994
The Effect of the ζ Potential on the Stability of a Non-Polar Oil-in-Water Emulsion journal December 1996
Morphology of anomalous polystyrene/ polybutyl acrylate composite particles produced by seeded emulsion polymerization journal February 1998
High-viscosity Pickering emulsion stabilized by amphiphilic alginate/SiO2 via multiscale methodology for crude oil-spill remediation journal December 2021
Recent advances of characterization techniques for the formation, physical properties and stability of Pickering emulsion journal March 2020
Janus and patchy colloids at fluid interfaces journal July 2017
Colloidosomes: Versatile microcapsules in perspective journal July 2009
Bacterial proliferation on clay nanotube Pickering emulsions for oil spill bioremediation journal April 2018
Hydroxide anion at the air–water interface journal October 2009
Current Trends in Pickering Emulsions: Particle Morphology and Applications journal April 2020
Effect of charged colloidal particles on adsorption of surfactants at oil–water interface journal June 2004
Electrophoretic mobility does not always reflect the charge on an oil droplet journal February 2008
Interactions of hydrophilic silica nanoparticles and classical surfactants at non-polar oil–water interface journal June 2011
Colloidosomes: Synthesis, properties and applications journal June 2015
Fabrication of shape-tunable macroparticles by seeded polymerization of styrene using non-cross-linked starch-based seed journal February 2018
Rotational diffusion of partially wetted colloids at fluid interfaces journal April 2019
Surface tension anomaly observed for chemically-modified Janus particles at the air/water interface journal January 2020
Recent progress in nanoclay-based Pickering emulsion and applications journal October 2021
One-pot synthesis of non-spherical hollow latex polymeric particles via seeded emulsion polymerization journal July 2017
Bifunctional remediation of oil spills based on pickering emulsification of polypyrrole-Ag3PO4/AgCl@Palygorskite journal November 2022
Shape-Tunable Synthesis of Sub-Micrometer Lens-Shaped Particles via Seeded Emulsion Polymerization journal March 2017
Janus Particles with Varying Configurations for Emulsion Stabilization journal July 2019
Janus Particle Synthesis, Assembly, and Application journal July 2017
Impact of Surface Amphiphilicity on the Interfacial Behavior of Janus Particle Layers under Compression journal July 2019
Pt-SiO 2 Janus Particles and the Water/Oil Interface: A Competition between Motility and Thermodynamics journal February 2020
Binding of Lignin Nanoparticles at Oil–Water Interfaces: An Ecofriendly Alternative to Oil Spill Recovery journal November 2018
Brownian Diffusion of Individual Janus Nanoparticles at Water/Oil Interfaces journal July 2020
Tilting and Tumbling of Janus Nanoparticles at Sheared Interfaces journal May 2016
Direct Assembly of Magnetic Janus Particles at a Droplet Interface journal September 2017
Sculpting Liquids with Two-Dimensional Materials: The Assembly of Ti 3 C 2 T x MXene Sheets at Liquid–Liquid Interfaces journal October 2019
Physisorption of Hydroxide Ions from Aqueous Solution to a Hydrophobic Surface journal January 2005
Why Are Water−Hydrophobic Interfaces Charged? journal March 2008
The Orientation and Charge of Water at the Hydrophobic Oil Droplet–Water Interface journal July 2011
Shape-Changing and Amphiphilicity-Reversing Janus Particles with pH-Responsive Surfactant Properties journal July 2014
Compartmentalization of Incompatible Reagents within Pickering Emulsion Droplets for One-Pot Cascade Reactions journal January 2015
Structured-Liquid Batteries journal February 2022
Compartmentalized Droplets for Continuous Flow Liquid–Liquid Interface Catalysis journal August 2016
Clickable Janus Particles journal September 2016
Strong Specific Hydroxide Ion Binding at the Pristine Oil/Water and Air/Water Interfaces journal October 2009
Ions at Hydrophobic Aqueous Interfaces: Molecular Dynamics with Effective Polarization journal July 2012
Janus Particles at Liquid−Liquid Interfaces journal June 2006
Janus Cylinders at Liquid–Liquid Interfaces journal August 2011
Double Hydrophilic Janus Cylinders at an Air–Water Interface journal January 2013
Influence of Janus Particle Shape on Their Interfacial Behavior at Liquid–Liquid Interfaces journal January 2013
Thermodynamically Stable Emulsions Using Janus Dumbbells as Colloid Surfactants journal October 2013
Charging of Oil−Water Interfaces Due to Spontaneous Adsorption of Hydroxyl Ions journal January 1996
Covalently Cross-Linked Colloidosomes journal November 2010
Equilibrium Orientation of Nonspherical Janus Particles at Fluid–Fluid Interfaces journal December 2011
A pH-switched Pickering emulsion catalytic system: high reaction efficiency and facile catalyst recycling journal January 2015
Adsorption of charged anisotropic nanoparticles at oil–water interfaces journal January 2019
Probing the morphology evolution of chemically anisotropic colloids prepared by homopolymerization- and copolymerization-induced phase separation journal January 2020
CXCVI.—Emulsions journal January 1907
Design and synthesis of Janus micro- and nanoparticles journal January 2005
An explanation for the charge on water’s surface journal January 2009
Janus particles at an oil–water interface journal January 2011
Configuration of nonspherical amphiphilic particles at a fluid–fluid interface journal January 2012
Amphiphilic Janus particles at fluid interfaces journal January 2013
Electrophoretic mobility of colloidal alkane particles in electrolyte solutions journal January 1992
Electrokinetic potential of the alkane/aqueous electrolyte interface journal January 1993
The effect of p H upon the electrophoretic mobility of emulsions of certain hydrocarbons and aliphatic halides journal January 1941
Orientation and surface activity of Janus particles at fluid-fluid interfaces journal October 2014
Molecular simulation of translational and rotational diffusion of Janus nanoparticles at liquid interfaces journal January 2015
Janus nanoparticle synthesis: Overview, recent developments, and applications journal May 2020
Separation of solids in the surface-layers of solutions and ‘suspensions’ (observations on surface-membranes, bubbles, emulsions, and mechanical coagulation).—Preliminary account journal January 1904
A general strategy to synthesize chemically and topologically anisotropic Janus particles journal June 2017
Colloidosomes: Selectively Permeable Capsules Composed of Colloidal Particles journal November 2002
Stabilizing Liquid Drops in Nonequilibrium Shapes by the Interfacial Jamming of Nanoparticles journal October 2013
Pickering Emulsions for Food Applications: Background, Trends, and Challenges journal April 2015
Particles at fluid–fluid interfaces: From single-particle behavior to hierarchical assembly of materials journal December 2014

Similar Records

Controlling Catalyst-Phase Selectivity in Complex Mixtures with Amphiphilic Janus Particles
Journal Article · Tue Dec 17 19:00:00 EST 2019 · ACS Applied Materials and Interfaces · OSTI ID:1658623

Lipid membrane-assisted condensation and assembly of amphiphilic Janus particles
Journal Article · Thu Dec 31 19:00:00 EST 2015 · Soft Matter · OSTI ID:1334497