Method of evaluating pH using a metallic nanoparticle incorporated nanocomposite-based optical pH sensor
Abstract
A method for evaluating the pH of an aqueous solution by utilizing the optical properties of a pH sensing material comprised of plurality of optically active nanoparticles dispersed in matrix material. The optically active nanoparticles have an electronic conductivity greater than about 10−1 S/cm and generally have an average nanoparticle diameter of less that about 500 nanometers, and the matrix material is a material which experiences a change in surface charge density over a pH range from 2.0 to 12.0 of at least 1%. The method comprises contacting the pH sensing material and the aqueous solution, illuminating the pH sensing material, and monitoring an optical signal generated through comparison of incident light and exiting light to determine the optical transmission, absorption, reflection, and/or scattering of the pH sensitive material. The optical signal of the pH sensitive material varies in response to the pH of the aqueous solution.
- Inventors:
- Issue Date:
- Research Org.:
- US Dept. of Energy (USDOE), Washington, DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1924967
- Patent Number(s):
- 11408827
- Application Number:
- 14/695,078
- Assignee:
- U.S. Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 04/24/2015
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Ohodnicki, Jr., Paul R., Wang, Congjun, Brown, Thomas D., and Kutchko, Barbara. Method of evaluating pH using a metallic nanoparticle incorporated nanocomposite-based optical pH sensor. United States: N. p., 2022.
Web.
Ohodnicki, Jr., Paul R., Wang, Congjun, Brown, Thomas D., & Kutchko, Barbara. Method of evaluating pH using a metallic nanoparticle incorporated nanocomposite-based optical pH sensor. United States.
Ohodnicki, Jr., Paul R., Wang, Congjun, Brown, Thomas D., and Kutchko, Barbara. Tue .
"Method of evaluating pH using a metallic nanoparticle incorporated nanocomposite-based optical pH sensor". United States. https://www.osti.gov/servlets/purl/1924967.
@article{osti_1924967,
title = {Method of evaluating pH using a metallic nanoparticle incorporated nanocomposite-based optical pH sensor},
author = {Ohodnicki, Jr., Paul R. and Wang, Congjun and Brown, Thomas D. and Kutchko, Barbara},
abstractNote = {A method for evaluating the pH of an aqueous solution by utilizing the optical properties of a pH sensing material comprised of plurality of optically active nanoparticles dispersed in matrix material. The optically active nanoparticles have an electronic conductivity greater than about 10−1 S/cm and generally have an average nanoparticle diameter of less that about 500 nanometers, and the matrix material is a material which experiences a change in surface charge density over a pH range from 2.0 to 12.0 of at least 1%. The method comprises contacting the pH sensing material and the aqueous solution, illuminating the pH sensing material, and monitoring an optical signal generated through comparison of incident light and exiting light to determine the optical transmission, absorption, reflection, and/or scattering of the pH sensitive material. The optical signal of the pH sensitive material varies in response to the pH of the aqueous solution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {8}
}
Works referenced in this record:
Surface plasmon resonance based fiber optic pH sensor utilizing Ag/ITO/Al/hydrogel layers
journal, January 2013
- Mishra, Satyendra K.; Gupta, Banshi D.
- The Analyst, Vol. 138, Issue 9
Induced pH-dependent shift by local surface plasmon resonance in functionalized gold nanorods
journal, February 2013
- Toh, Yon-Rui; Yu, Pyng; Wen, Xiaoming
- Nanoscale Research Letters, Vol. 8, Issue 1
Optical methods and systems for detecting a constituent in a gas containing oxygen in harsh environments
patent-application, August 2009
- Carpenter, Michael A.; Sirinakis, George
- US Patent Application 12/293501; 20090207413
Functionalised Surface Sensing Apparatus and Method
patent-application, August 2008
- Shaw, Andrew Mark
- v10/593,105; 2008/0204708 Al
Enhanced Ratiometric pH Sensing Using SNAFL-2 on Silver Island Films: Metal-enhanced Fluorescence Sensing
journal, January 2005
- Aslan, Kadir; Lakowicz, Joseph R.; Szmacinski, Henryk
- Journal of Fluorescence, Vol. 15, Issue 1
Ion adsorption in the porous sol–gel silica layer in the fibre optic pH sensor
journal, December 2002
- Rayss, Jan; Sudolski, Grzegorz
- Sensors and Actuators B: Chemical, Vol. 87, Issue 3
Fiber optic sensor and methods and apparatus relating thereto
patent, October 1994
- Jorgenson, Ralph C.; Yee, Sinclair S.
- US Patent Document 5,359,681
Plasmonic transparent conducting metal oxide nanoparticles and films for optical sensing applications
patent, January 2014
- Ohodnicki, Paul R.; Wang, Congjun; Andio, Mark A.
- US Patent Document 8,638,440
Fabrication and characterization of a highly sensitive surface plasmon resonance based fiber optic pH sensor utilizing high index layer and smart hydrogel
journal, October 2012
- Singh, Sarika; Gupta, Banshi D.
- Sensors and Actuators B: Chemical, Vol. 173
Nanocomposite thin films for high temperature optical gas sensing of hydrogen
patent, April 2013
- Ohodnicki, Paul R.; Brown, Thomas D.
- US Patent Document 8,411,275
Alkyne-Assisted Nanostructure Growth
patent-application, February 2011
- Plata, Desiree L.; Geschwend, Philip M.; Hart, Anastasios John
- US Patent Application 12/817818; 20110038784