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Title: Sorting process of nanoparticles and applications of same

Abstract

In one aspect of the present invention, a method for sorting nanoparticles includes preparing a high-viscosity density gradient medium filled in a container, dispersing nanoparticles into an aqueous solution to form a suspension of the nanoparticles, each nanoparticle having one or more cores and a shell encapsulating the one or more cores, layering the suspension of the nanoparticles on the top of the high-viscosity density gradient medium in the container, and centrifugating the layered suspension of the nanoparticles on the top of the high-viscosity density gradient medium in the container at a predetermined speed for a predetermined period of time to form a gradient of fractions of the nanoparticles along the container, where each fraction comprises nanoparticles in a respective one of aggregation states of the nanoparticles.

Inventors:
; ;
Publication Date:
Research Org.:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1406579
Patent Number(s):
9,802,818
Application Number:
13/461,521
Assignee:
NORTHWESTERN UNIVERSITY
DOE Contract Number:  
SC0001059
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 May 01
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Tyler, Timothy P., Henry, Anne-Isabelle, and Van Duyne, Richard P. Sorting process of nanoparticles and applications of same. United States: N. p., 2017. Web.
Tyler, Timothy P., Henry, Anne-Isabelle, & Van Duyne, Richard P. Sorting process of nanoparticles and applications of same. United States.
Tyler, Timothy P., Henry, Anne-Isabelle, and Van Duyne, Richard P. 2017. "Sorting process of nanoparticles and applications of same". United States. https://www.osti.gov/servlets/purl/1406579.
@article{osti_1406579,
title = {Sorting process of nanoparticles and applications of same},
author = {Tyler, Timothy P. and Henry, Anne-Isabelle and Van Duyne, Richard P.},
abstractNote = {In one aspect of the present invention, a method for sorting nanoparticles includes preparing a high-viscosity density gradient medium filled in a container, dispersing nanoparticles into an aqueous solution to form a suspension of the nanoparticles, each nanoparticle having one or more cores and a shell encapsulating the one or more cores, layering the suspension of the nanoparticles on the top of the high-viscosity density gradient medium in the container, and centrifugating the layered suspension of the nanoparticles on the top of the high-viscosity density gradient medium in the container at a predetermined speed for a predetermined period of time to form a gradient of fractions of the nanoparticles along the container, where each fraction comprises nanoparticles in a respective one of aggregation states of the nanoparticles.},
doi = {},
url = {https://www.osti.gov/biblio/1406579}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 31 00:00:00 EDT 2017},
month = {Tue Oct 31 00:00:00 EDT 2017}
}

Works referenced in this record:

Surface Enhanced Raman Spectroscopy (SERS) Systems and Methods of Use Thereof
patent-application, June 2009


Separation of carbon nanotubes in density gradients
patent-application, July 2009


Methods For Sorting Nanotubes By Wall Number
patent-application, March 2010


Improved Monodispersity of Plasmonic Nanoantennas via Centrifugal Processing
journal, January 2011

  • Tyler, Timothy P.; Henry, Anne-Isabelle; Van Duyne, Richard P.
  • The Journal of Physical Chemistry Letters, Vol. 2, Issue 3, p. 218-222
  • https://doi.org/10.1021/jz101690f

Hydrodynamic Characterization of Surfactant Encapsulated Carbon Nanotubes Using an Analytical Ultracentrifuge
journal, October 2008


Structure Enhancement Factor Relationships in Single Gold Nanoantennas by Surface-Enhanced Raman Excitation Spectroscopy
journal, December 2012


Single Molecule Detection Using Surface-Enhanced Raman Scattering (SERS)
journal, March 1997


Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering
journal, February 1997


Proof of Single-Molecule Sensitivity in Surface Enhanced Raman Scattering (SERS) by Means of a Two-Analyte Technique
journal, February 2006


A Frequency Domain Existence Proof of Single-Molecule Surface-Enhanced Raman Spectroscopy
journal, December 2007

  • Dieringer, Jon A.; Lettan, Robert B.; Scheidt, Karl A.
  • Journal of the American Chemical Society, Vol. 129, Issue 51, p. 16249-16256
  • https://doi.org/10.1021/ja077243c

Ag Nanocrystal Junctions as the Site for Surface-Enhanced Raman Scattering of Single Rhodamine 6G Molecules
journal, December 2000


Probing the Structure of Single-Molecule Surface-Enhanced Raman Scattering Hot Spots
journal, September 2008


Engineering nanostructures for giant optical fields
journal, October 2004


Understanding the SERS Effects of Single Silver Nanoparticles and Their Dimers, One at a Time
journal, January 2010


Screening Nanopyramid Assemblies to Optimize Surface Enhanced Raman Scattering
journal, March 2010


Light Concentration at the Nanometer Scale
journal, July 2010

  • Alvarez-Puebla, Ramón; Liz-Marzán, Luis M.; García de Abajo, F. Javier
  • The Journal of Physical Chemistry Letters, Vol. 1, Issue 16, p. 2428-2434
  • https://doi.org/10.1021/jz100820m

Wet Chemical Synthesis of High Aspect Ratio Cylindrical Gold Nanorods
journal, May 2001


Shape-Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics?
journal, December 2008


Shape-Controlled Synthesis of Metal Nanostructures The Case of Silver
journal, January 2005


Analysis and applications of nanoparticles in the separation sciences: A case of gold nanoparticles
journal, December 2009


Separation of Nanoparticles by Gel Electrophoresis According to Size and Shape
journal, September 2007


Electrophoretic methods for separation of nanoparticles
journal, June 2009


Shape Separation of Nanometer Gold Particles by Size-Exclusion Chromatography
journal, June 1999


Shape separation of gold nanorods using centrifugation
journal, March 2009


Size sorting of citrate reduced gold nanoparticles by sedimentation field-flow fractionation
journal, December 2009


Generalized Approach to SERS-Active Nanomaterials via Controlled Nanoparticle Linking, Polymer Encapsulation, and Small-Molecule Infusion
journal, July 2009


Separation of Nanoparticles in a Density Gradient: FeCo@C and Gold Nanocrystals
journal, January 2009


Rapid Separation and Purification of Nanoparticles in Organic Density Gradients
journal, February 2010


High-Purity Separation of Gold Nanoparticle Dimers and Trimers
journal, April 2009


SERS as a Foundation for Nanoscale, Optically Detected Biological Labels
journal, October 2007


Sorting carbon nanotubes by electronic structure using density differentiation
journal, October 2006


Progress towards monodisperse single-walled carbon nanotubes
journal, May 2008


Solution Phase Production of Graphene with Controlled Thickness via Density Differentiation
journal, December 2009


Emerging Methods for Producing Monodisperse Graphene Dispersions
journal, December 2009


Processing and properties of highly enriched double-wall carbon nanotubes
journal, December 2008


Recent Developments in Carbon Nanotube Sorting and Selective Growth
journal, April 2010


Near Infrared Optical Absorption of Gold Nanoparticle Aggregates
journal, July 2002