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:

Tyler, Timothy P.; Henry, Anne-Isabelle; Van Duyne, Richard P.

Issue Date:

2017-10-31

Research Org.:

Northwestern Univ., Evanston, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1406579

Patent Number(s):

9802818

Application Number:

13/461,521

Assignee:

NORTHWESTERN UNIVERSITY

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y40/00 - Manufacture or treatment of nanostructures

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N21/658 - {enhancement Raman, e.g. surface plasmons}

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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