Surface-enhanced raman spectroscopy substrate for arsenic sensing in groundwater
Abstract
A surface-enhanced Raman spectroscopy (SERS) substrate formed from a plurality of monolayers of polyhedral silver nanocrystals, wherein at least one of the monolayers has polyvinypyrrolidone (PVP) on its surface, and thereby configured for sensing arsenic is described. Highly active SERS substrates are formed by assembling high density monolayers of differently shaped silver nanocrystals onto a solid support. SERS detection is performed directly on this substrate by placing a droplet of the analyte solution onto the nanocrystal monolayer. Adsorbed polymer, polyvinypyrrolidone (PVP), on the surface of the nanoparticles facilitates the binding of both arsenate and arsenite near the silver surface, allowing for highly accurate and sensitive detection capabilities.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California, Oakland, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1184562
- Patent Number(s):
- 9057705
- Application Number:
- 12/372,672
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
- DOE Contract Number:
- FG02-02ER46021
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2009 Feb 17
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
Yang, Peidong, Mulvihill, Martin, Tao, Andrea R., Sinsermsuksakul, Prasert, and Arnold, John. Surface-enhanced raman spectroscopy substrate for arsenic sensing in groundwater. United States: N. p., 2015.
Web.
Yang, Peidong, Mulvihill, Martin, Tao, Andrea R., Sinsermsuksakul, Prasert, & Arnold, John. Surface-enhanced raman spectroscopy substrate for arsenic sensing in groundwater. United States.
Yang, Peidong, Mulvihill, Martin, Tao, Andrea R., Sinsermsuksakul, Prasert, and Arnold, John. Tue .
"Surface-enhanced raman spectroscopy substrate for arsenic sensing in groundwater". United States. https://www.osti.gov/servlets/purl/1184562.
@article{osti_1184562,
title = {Surface-enhanced raman spectroscopy substrate for arsenic sensing in groundwater},
author = {Yang, Peidong and Mulvihill, Martin and Tao, Andrea R. and Sinsermsuksakul, Prasert and Arnold, John},
abstractNote = {A surface-enhanced Raman spectroscopy (SERS) substrate formed from a plurality of monolayers of polyhedral silver nanocrystals, wherein at least one of the monolayers has polyvinypyrrolidone (PVP) on its surface, and thereby configured for sensing arsenic is described. Highly active SERS substrates are formed by assembling high density monolayers of differently shaped silver nanocrystals onto a solid support. SERS detection is performed directly on this substrate by placing a droplet of the analyte solution onto the nanocrystal monolayer. Adsorbed polymer, polyvinypyrrolidone (PVP), on the surface of the nanoparticles facilitates the binding of both arsenate and arsenite near the silver surface, allowing for highly accurate and sensitive detection capabilities.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 16 00:00:00 EDT 2015},
month = {Tue Jun 16 00:00:00 EDT 2015}
}
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