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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
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
971534
Patent Number(s):
7,608,461
Application Number:
11/228,934
Assignee:
Sandia Corporation (Livermore, CA)
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. 2009. "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 = {},
url = {https://www.osti.gov/biblio/971534}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {11}
}

Works referenced in this record:

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Preparation and formation mechanisms of uniform metallic particles in homogeneous solutions
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Morphology of CdS Nanocrystals Synthesized in a Mixed Surfactant System
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Nanosphere Lithography:  Tunable Localized Surface Plasmon Resonance Spectra of Silver Nanoparticles
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Surface-enhanced spectroscopy
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X-ray photoelectron spectroscopy study on gold nanoparticles supported on diamond
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