LSPR Nanostructures for SERS

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-11-C-0206
Agency Tracking Number: A111-019-0690
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: A11-019
Solicitation Number: 2011.1
Small Business Information
362 Industrial Park Road, Suite #8, Middletown, CT, -
DUNS: 076890222
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Stuart Farquharson
 (860) 635-9800
Business Contact
 Stuart Farquharson
Title: President
Phone: (860) 635-9800
Research Institution
The overall goal of this proposed program (through Phase III) is to develop a chemical warfare agent analyzer capable of detecting vapor phase agents at 10-7g/m3 in less than 1 minute. This will be accomplished by developing a method to produce novel localized surface plasmon resonance (LSPR) nanostructures, supported by theory, that produce a minimum surface-enhanced Raman scattering (SERS) enhancement of 1010, and incorporating them into an air collection sampling system coupled to a field-usable Raman spectrometer. Feasibility will be demonstrated during Phase I by developing and identifying LSPR structures that produce SERS with enhancement factors of 106 and greater using three chemicals, benzenethiol, dimethyl methylphosphonate, and methylphosphonic acid. 2-chloroethyl ethylsulfide will be measured in the vapor phase during an option task. The overall goal of the Phase II program will be to develop a prototype analyzer that can measure 10 chemical agent simulants at 10-7g/m3 concentration in less than 1 minute. This will be accomplished by optimizing the enhancement of the LSPR substrates (through theory and manufacturing), incorporating them into an air collection system coupled to a Raman spectrometer, and quantifying sensitivity. The Phase III program will focus on measuring real chemical agents and developing a field testable system.

* Information listed above is at the time of submission. *

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