LSPR Nanostructures for SERS

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$100,000.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
W911NF-11-C-0206
Agency Tracking Number:
A111-019-0690
Solicitation Year:
2011
Solicitation Topic Code:
A11-019
Solicitation Number:
2011.1
Small Business Information
Real-Time Analyzers
362 Industrial Park Road, Suite #8, Middletown, CT, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
076890222
Principal Investigator:
Stuart Farquharson
President
(860) 635-9800
stu@rta.biz
Business Contact:
Stuart Farquharson
President
(860) 635-9800
stu@rta.biz
Research Institution:
Stub




Abstract
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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