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Title: Surface engineered nanoparticles for improved surface enhanced Raman scattering applications and method for preparing same

Abstract

A method for producing metal nanoparticles that when associated with an analyte material will generate an amplified SERS spectrum when the analyte material is illuminated by a light source and a spectrum is recorded. The method for preparing the metal nanoparticles comprises the steps of (i) forming a water-in-oil microemulsion comprising a bulk oil phase, a dilute water phase, and one or more surfactants, wherein the water phase comprises a transition metal ion; (ii) adding an aqueous solution comprising a mild reducing agent to the water-in-oil microemulsion; (iii) stirring the water-in-oil microemulsion and aqueous solution to initiate a reduction reaction resulting in the formation of a fine precipitate dispersed in the water-in-oil microemulsion; and (iv) separating the precipitate from the water-in-oil microemulsion.

Inventors:
 [1];  [2]
  1. San Francisco, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Sandia National Laboratories (SNL-CA), Livermore, CA
Sponsoring Org.:
USDOE
OSTI Identifier:
971534
Patent Number(s):
7,608,461
Application Number:
11/228,934
Assignee:
Sandia Corporation (Livermore, CA) ALO
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Simmons, Blake A, and Talin, Albert Alec. Surface engineered nanoparticles for improved surface enhanced Raman scattering applications and method for preparing same. United States: N. p., 2009. Web.
Simmons, Blake A, & Talin, Albert Alec. Surface engineered nanoparticles for improved surface enhanced Raman scattering applications and method for preparing same. United States.
Simmons, Blake A, and Talin, Albert Alec. Fri . "Surface engineered nanoparticles for improved surface enhanced Raman scattering applications and method for preparing same". United States. https://www.osti.gov/servlets/purl/971534.
@article{osti_971534,
title = {Surface engineered nanoparticles for improved surface enhanced Raman scattering applications and method for preparing same},
author = {Simmons, Blake A and Talin, Albert Alec},
abstractNote = {A method for producing metal nanoparticles that when associated with an analyte material will generate an amplified SERS spectrum when the analyte material is illuminated by a light source and a spectrum is recorded. The method for preparing the metal nanoparticles comprises the steps of (i) forming a water-in-oil microemulsion comprising a bulk oil phase, a dilute water phase, and one or more surfactants, wherein the water phase comprises a transition metal ion; (ii) adding an aqueous solution comprising a mild reducing agent to the water-in-oil microemulsion; (iii) stirring the water-in-oil microemulsion and aqueous solution to initiate a reduction reaction resulting in the formation of a fine precipitate dispersed in the water-in-oil microemulsion; and (iv) separating the precipitate from the water-in-oil microemulsion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {11}
}

Patent:

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