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Monitoring Pesticide Exposure and Accumulation: An improved Rapid Identifier for all Pesticide Classes

Award Number: R43ES024617
ORGANIZATION: NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 03/15/2015
PERIOD OF PERFORMANCE END DATE: 08/31/2015

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Monitoring Pesticide Exposure and Accumulation: An improved Rapid Identifier for all Pesticide Classes - ¿ DESCRIPTION (provided by applicant): An inexpensive disposable vapor sensor, which can also be used for urinalysis, can provide rapid field monitoring of pesticide exposure. The sensor utilizes Surface-Enhanced Raman Spectroscopy (SERS) to detect chemicals, like pesticides, that adsorb strongly on roughened SERS substrates in the high parts-pre- trillion range. As the sensors are tuned to the analytes of interest, interferences from more concentrated chemicals are limited. An earlier research program provided reliable results for organophosphate (OP) and organochlorine (OC) pesticides. In that program, 50 OP and OC pesticides or metabolites were evaluated in the laboratory at the low ppb range, with acephate and methyl parathion detection at farmworker camps. In this program, we will fabricate an innovative SERS sensing element for the detection of triazine pesticides, such as atrazine, simazine and cyromazine. Sensors will be optimized by an azide loading to improve the electron density and yield strong hydrogen bonding with the triazine amine groups. This novel sensor is expected to detect triazines in concentrations of 1 ppb or less and withstand the temperature and humidity conditions encountered by farmworkers. The new sensor can be easily combined with our previous sensor to measure >75 pesticides or metabolites at a fraction of the cost of current analytical laboratory methods, thus providing the NIH (particularly the NIEHS Exposure Biology program) with a large data set on the daily exposure/ingestion of pesticides. This data will allow epidemiological studies and predictions of long-term health outcomes. Core technology concepts have been demonstrated. A previous program demonstrated organochlorine and organophosphate pesticides can be detected down as low as 100 ppt. EIC Laboratories has demonstrated in preliminary studies that an azide-coated SERS sensor is several orders of magnitude more sensitive to triazines than previous sensors. The Phase I program is designed to demonstrate detection of triazine pesticides and metabolites at the 1 ppb level, show an extended field lifetime and an increased sensitivity for direct readings of triazine pesticide metabolites.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2015 ( Subtotal = $149,865 )
2015	2015	EIC LABORATORIES, INC	111 DOWNEY STREET	NORWOOD	MA	02062	NORFOLK	USA	Environmental Health	000	1	3/15/2015	NEW	$149,865
														Subtotal = $149,865

Grand Total All Awards = $149,865

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Monitoring Pesticide Exposure and Accumulation: An improved Rapid Identifier for all Pesticide Classes

Award Number: R43ES024617

ORGANIZATION: NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 03/15/2015

PERIOD OF PERFORMANCE END DATE: 08/31/2015

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