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Mixed Nanosphere Assemblies at a Liquid–Liquid Interface

Journal Article · · Small
 [1];  [2];  [2];  [1];  [3];  [1];  [4];  [4];  [4];  [5]
  1. Univ. of Massachusetts, Amherst, MA (United States)
  2. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  3. King Fahd University of Petroleum and Minerals, Dhahran (Saudi Arabia)
  4. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Molecular Foundry
  5. Univ. of Massachusetts, Amherst, MA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Tohoku Univ., Sendai (Japan)
The in-plane packing of gold (Au), polystyrene (PS), and silica (SiO2) spherical nanoparticle (NP) mixtures at a water–oil interface is investigated in situ by UV–vis reflection spectroscopy. All NPs are functionalized with carboxylic acid such that they strongly interact with amine-functionalized ligands dissolved in an immiscible oil phase at the fluid interface. This interaction markedly increases the binding energy of these nanoparticle surfactants (NPSs). The separation distance between the Au NPSs and Au surface coverage are measured by the maximum plasmonic wavelength (λmax) and integrated intensities as the assemblies saturate for different concentrations of non-plasmonic (PS/SiO2) NPs. Further, as the PS/SiO2 content increases, the time to reach intimate Au NP contact also increases, resulting from their hindered mobility. λmax changes within the first few minutes of adsorption due to weak attractive inter-NP forces. Additionally, a sharper peak in the reflection spectrum at NP saturation reveals tighter Au NP packing for assemblies with intermediate non-plasmonic NP content. Grazing incidence small angle X-ray scattering (GISAXS) and scanning electron microscopy (SEM) measurements confirm a decrease in Au NP domain size for mixtures with larger non-plasmonic NP content. The results demonstrate a simple means to probe interfacial phase separation behavior using in situ spectroscopy as interfacial structures densify into jammed, phase-separated NP films.
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:
2352226
Alternate ID(s):
OSTI ID: 2217686
Journal Information:
Small, Journal Name: Small Journal Issue: 15 Vol. 20; ISSN 1613-6810
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (62)

One-Dimensional Assemblies of Nanoparticles: Preparation, Properties, and Promise journal April 2005
Continuous Fabrication of Hierarchical and Asymmetric Bijel Microparticles, Fibers, and Membranes by Solvent Transfer-Induced Phase Separation (STRIPS) journal October 2015
Nanoparticle Assembly at Liquid-Liquid Interfaces: From the Nanoscale to Mesoscale journal July 2018
Reflective Coloration from Structural Plasmonic to Disordered Polarizonic journal May 2021
Size, Shape, and Lateral Correlation of Highly Uniform, Mesoscopic, Self‐Assembled Domains of Fluorocarbon–Hydrocarbon Diblocks at the Air/Water Interface: A GISAXS Study journal July 2017
Scaling Laws for Polymer Chains Grafted onto Nanoparticles journal February 2018
Controlling Light Localization and Light-Matter Interactions with Nanoplasmonics journal September 2010
Visualizing Assembly Dynamics of All‐Liquid 3D Architectures journal December 2021
Thermally responsive polymer–nanoparticle composites for biomedical applications journal March 2011
Cluster matter: the transition of optical elastic scattering to regular reflection journal March 1991
The interaction between electromagnetic resonances and its role in spectroscopic studies of molecules adsorbed on colloidal particles or metal spheres journal September 1981
Pd-Fe dual-metal nanoparticles confined in the interface of carbon nanotubes/N-doped carbon for excellent catalytic performance journal September 2019
Three-dimensional nanoparticle assemblies with tunable plasmonics via a layer-by-layer process journal February 2020
Light Extinction by Agglomerates of Gold Nanoparticles: A Plasmon Ruler for Sub-10 nm Interparticle Distances journal March 2022
Small Angle X-ray Scattering for Nanoparticle Research journal April 2016
Gold Nanofilms at Liquid–Liquid Interfaces: An Emerging Platform for Redox Electrocatalysis, Nanoplasmonic Sensors, and Electrovariable Optics journal January 2018
Self-Assembly of Silica Nanoparticles at Water–Hydrocarbon Interfaces: Insights from In Operando Small-Angle X-ray Scattering Measurements and Molecular Dynamics Simulations journal September 2020
The Buckling Spectra of Nanoparticle Surfactant Assemblies journal August 2021
Fine-Tuning Nanoparticle Packing at Water–Oil Interfaces Using Ionic Strength journal September 2017
Nanocomposite Membranes via the Codeposition of Polydopamine/Polyethylenimine with Silica Nanoparticles for Enhanced Mechanical Strength and High Water Permeability journal January 2017
Plasmonic Nanoparticle-Metal–Organic Framework (NP–MOF) Nanohybrid Platforms for Emerging Plasmonic Applications journal April 2021
Bidisperse Nanospheres Jammed on a Liquid Surface journal August 2020
Dynamic Reconfiguration of Compressed 2D Nanoparticle Monolayers journal March 2022
Relaxation and Aging of Nanosphere Assemblies at a Water–Oil Interface journal June 2022
Visualizing the Dynamics of Nanoparticles in Liquids by Scanning Electron Microscopy journal May 2016
Programming Hierarchical Self-Assembly of Patchy Particles into Colloidal Crystals via Colloidal Molecules journal February 2018
Sculpting Liquids with Two-Dimensional Materials: The Assembly of Ti 3 C 2 T x MXene Sheets at Liquid–Liquid Interfaces journal October 2019
A Tunable Nanoplasmonic Mirror at an Electrochemical Interface journal October 2018
Plasmons in Strongly Coupled Metallic Nanostructures journal June 2011
The Effects of Inorganic Solid Particles on Water and Crude Oil Emulsion Stability journal June 2002
The Optical Properties of Metal Nanoparticles:  The Influence of Size, Shape, and Dielectric Environment journal January 2003
Optimizing Gold Nanoparticle Cluster Configurations ( n ≤ 7) for Array Applications journal February 2011
Using Voronoi Tessellations to Assess Nanoparticle–Nanoparticle Interactions and Ordering in Monolayer Films Formed through Electrophoretic Deposition journal September 2012
Plasmon Coupling in Two-Dimensional Arrays of Silver Nanoparticles: II. Effect of the Particle Size and Interparticle Distance journal January 2010
Self-Assembly of Patchy Particles journal July 2004
On the Universal Scaling Behavior of the Distance Decay of Plasmon Coupling in Metal Nanoparticle Pairs: A Plasmon Ruler Equation journal July 2007
Assembly of Colloidal Semiconductor Nanorods in Solution by Depletion Attraction journal February 2010
DNA-Directed Self-Assembly of Gold Nanoparticles onto Nanopatterned Surfaces: Controlled Placement of Individual Nanoparticles into Regular Arrays journal October 2010
Salt-Mediated Self-Assembly of Thioctic Acid on Gold Nanoparticles journal May 2011
A New Model for the Morphology of P3HT/PCBM Organic Photovoltaics from Small-Angle Neutron Scattering: Rivers and Streams journal May 2011
Hierarchical Self-Assembly and Optical Disassembly for Controlled Switching of Magnetoferritin Nanoparticle Magnetism journal July 2011
Plasmonic Ruler at the Liquid–Liquid Interface journal August 2012
Self-Assembly of Heterogeneously Charged Particles under Confinement journal May 2013
Conductive Gold Nanoparticle Mirrors at Liquid/Liquid Interfaces journal September 2013
Structure/Processing Relationships of Highly Ordered Lead Salt Nanocrystal Superlattices journal September 2009
Electrotunable nanoplasmonic liquid mirror journal September 2017
Theory of tailorable optical response of two-dimensional arrays of plasmonic nanoparticles at dielectric interfaces journal September 2016
The science of food structuring journal January 2009
Self-healing gold mirrors and filters at liquid–liquid interfaces journal January 2016
Tuneable 2D self-assembly of plasmonic nanoparticles at liquid|liquid interfaces journal January 2016
From dynamic self-assembly to networked chemical systems journal January 2017
Relating domain size distribution to line tension and molecular dipole density in model cytoplasmic myelin lipid monolayers journal May 2011
Existence of isostatic, maximally random jammed monodisperse hard-disk packings journal December 2014
Programmable and reversible plasmon mode engineering journal November 2016
Nanoparticles at fluid interfaces journal September 2007
Nonlinear optical properties of Au nanoparticles on indium–tin oxide substrate journal July 2005
Optical properties of two-dimensional systems of randomly distributed particles journal October 1983
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
Self-assembly of nanomaterials at fluid interfaces journal May 2016
Discrete-dipole approximation for periodic targets: theory and tests journal January 2008
Molding of Plasmonic Resonances in Metallic Nanostructures: Dependence of the Non-Linear Electric Permittivity on System Size and Temperature journal October 2013

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