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Assembling Bare Au Nanoparticles at Positively Charged Templates

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep26462· OSTI ID:1257413
 [1];  [2];  [3];  [4];  [5]
  1. Ames Lab., Ames, IA (United States). Div. of Materials Sciences and Engineering
  2. Ames Lab., Ames, IA (United States). Div. of Materials Sciences and Engineering; Iowa State Univ., Ames, IA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source, X-ray Science Div.
  4. Ames Lab., Ames, IA (United States). Div. of Materials Sciences and Engineering; Iowa State Univ., Ames, IA (United States). Dept. of Chemical and Biological Engineering
  5. Ames Lab., Ames, IA (United States). Div. of Materials Sciences and Engineering; Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy

In-situ X-ray reflectivity (XRR) and grazing incidence X-ray small-angle scattering (GISAXS) reveal that unfunctionalized (bare) gold nanoparticles (AuNP) spontaneously adsorb to a cationic lipid template formed by a Langmuir monolayer of DPTAP (1,2-dihexadecanoyl-3-trimethylammonium-propane) at vapor/aqueous interfaces. Analysis of the XRR yields the electron density profile across the charged-interfaces along the surface normal showing the AuNPs assemble with vertical thickness comparable to the particle size. The GISAXS analysis indicates that the adsorbed mono-particle layer exhibits short-range in-plane correlations. By contrast, single-stranded DNA-functionalized AuNPs, while attracted to the positively charged surface (more efficiently with the addition of salt to the solution), display less in-plane regular packing compared to bare AuNPs.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1257413
Alternate ID(s):
OSTI ID: 1323385
Report Number(s):
IS-J--8993; srep26462
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Vol. 6; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (51)

Design and Characterization of Crystalline Thin Film Architectures at the Air−Liquid Interface:  Simplicity to Complexity journal June 2001
A Simple Method for Kinetic Control of DNA-Induced Nanoparticle Assembly journal November 2006
Ultrahigh Nanoparticle Stability against Salt, pH, and Solvent with Retained Surface Accessibility via Depletion Stabilization journal June 2012
Crystalline Gibbs Monolayers of DNA-Capped Nanoparticles at the Air–Liquid Interface journal September 2011
Tunable Nanoparticle Arrays at Charged Interfaces journal September 2014
Interaction of colloidal nanoparticles with their local environment: the (ionic) nanoenvironment around nanoparticles is different from bulk and determines the physico-chemical properties of the nanoparticles journal July 2014
Two-Dimensional Interfacial Colloidal Crystals journal August 1980
Direct observation of two-dimensional, dynamic clustering and ordering with colloids journal July 1985
Structure of Aggregated Gold Colloids journal September 1986
Observations of First-Order Liquid-to-Hexatic and Hexatic-to-Solid Phase Transitions in a Confined Colloid Suspension journal September 1996
Self-Assembly at All Scales journal March 2002
Surfactant-Mediated Two-Dimensional Crystallization of Colloidal Crystals journal December 1999
Elements of Modern X-ray Physics book March 2011
Probing in Real Time the Soft Crystallization of DNA‐Capped Nanoparticles journal December 2009
Probing in Real Time the Soft Crystallization of DNA-Capped Nanoparticles journal December 2009
Crystallization of DNA-Capped Gold Nanoparticles in High-Concentration, Divalent Salt Environments journal December 2013
Small — Angle Scattering from Complex Fluids book January 1995
X-Ray Scattering from Soft-Matter Thin Films book January 1999
Some simple ideas on X-ray reflection and grazing-incidence diffraction from thin surfactant films journal April 1994
Probing surface and interface morphology with Grazing Incidence Small Angle X-Ray Scattering journal August 2009
Liquid Surfaces and Interfaces: Synchrotron X-ray Methods book September 2012
Liquid Surfaces and Interfaces: Synchrotron X-ray Methods book September 2012
Maximizing DNA Loading on a Range of Gold Nanoparticle Sizes journal December 2006
Two-Dimensional DNA-Programmable Assembly of Nanoparticles at Liquid Interfaces journal May 2014
Specificity and Variation of Length Scale over Which Monovalent Halide Ions Neutralize a Charged Interface journal March 2015
Morphological Transformations in the Magnetite Biomineralizing Protein Mms6 in Iron Solutions: A Small-Angle X-ray Scattering Study journal February 2015
Stepwise surface encoding for high-throughput assembly of nanoclusters journal March 2009
The bio-barcode assay for the detection of protein and nucleic acid targets using DTT-induced ligand exchange journal June 2006
A scaling approximation for structure factors in the integral equation theory of polydisperse nonionic colloidal fluids journal October 1999
Grazing-incidence small-angle x-ray scattering from dense packing of islands on surfaces: Development of distorted wave Born approximation and correlation between particle sizes and spacing journal September 2007
Adhesion of growing nanoparticles at a glance: Surface differential reflectivity spectroscopy and grazing incidence small angle x-ray scattering journal March 2009
Hard-core Yukawa model for two-dimensional charge-stabilized colloids journal September 2001
Two-Dimensional Interfacial Colloidal Crystals journal August 1980
Direct observation of two-dimensional, dynamic clustering and ordering with colloids journal July 1985
Structure of Aggregated Gold Colloids journal August 1986
Attractive potential between confined colloids at low ionic strength journal July 1994
Observations of First-Order Liquid-to-Hexatic and Hexatic-to-Solid Phase Transitions in a Confined Colloid Suspension journal September 1996
Structure and phase transitions in Langmuir monolayers journal April 1999
Grazing-incidence small-angle x-ray scattering from dense packing of islands on surfaces: Development of distorted wave Born approximation and correlation between particle sizes and spacing journal September 2007
Adhesion of growing nanoparticles at a glance: Surface differential reflectivity spectroscopy and grazing incidence small angle x-ray scattering journal March 2009
Hard-core Yukawa model for two-dimensional charge-stabilized colloids journal September 2001
Structure of Aggregated Gold Colloids journal August 1986
Attractive potential between confined colloids at low ionic strength journal July 1994
Structure and phase transitions in Langmuir monolayers journal April 1999
Small-angle scattering of particle assemblies journal July 2015
Advanced grazing-incidence techniques for modern soft-matter materials analysis journal January 2015
Small-angle scattering of particle assemblies journal July 2015
Advanced grazing-incidence techniques for modern soft-matter materials analysis journal January 2015
Real-Time Monitoring of Growing Nanoparticles journal May 2003
Hard-core Yukawa model for two-dimensional charge stabilized colloids text January 2001
A scaling approximation for structure factors in the integral equation theory of polydisperse nonionic colloidal fluids text January 1999

Cited By (2)

Polyethylene-Glycol-Mediated Self-Assembly of Magnetite Nanoparticles at the Liquid/Vapor Interface journal January 2018
Macroscopic and tunable nanoparticle superlattices journal January 2017

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