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Size-Resolved Measurement of Ultrafine and Nanometer Particle Concentrations

Award Number: R44OH010515
ORGANIZATION: OFFICE OF HEALTH AND SAFETY(OHS)
OPDIV: CDC
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 09/01/2016
PERIOD OF PERFORMANCE END DATE: 08/31/2018

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Size-Resolved Measurement of Ultrafine and Nanometer Particle Concentrations - ¿ DESCRIPTION (provided by applicant): Proposed is a miniature sensor for real-time measurement of nano-particle size, concentration, surface area and lung deposition metrics. This instrument combines two novel technologies: (1) a self- sustaining laminar-flow water condensation particle counter and collector developed by our firm and (2) the opposed migration aerosol classifier developed at the California Institute of Technology. The self- sustaining water condensation counter provides single particle detection, does not require liquid fill reservoirs, and can be operated in any orientation. The opposed migration aerosol classifier provides particle size-selection based on electrical mobility in an inherently compact form. Both technologies are compatible with devices small enough to be wearable. The instrument is configured to cover the particle size range from 10 nm to 200 nm when configured as a personal sampler, and can extend to near 1 um when configured as a hand-held device. Reported parameters are nano-particle number distribution, total number concentration, geometric mean diameter, and region-specific respiratory deposition potential. In Phase I research we demonstrated the precision and accuracy of our technology. In Phase II we will design, construct and test an integrated system that we will be unobtrusive, battery operable and suitable for personal monitoring. This instrument will provide a means to monitor, on a routine basis, human exposures associated with airborne synthesized nano-materials.


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: 2017 ( Subtotal = $470,266 )
2017	2017	AEROSOL DYNAMICS INC.	935 GRAYSON ST.	BERKELEY	CA	94710	ALAMEDA	USA	Occupational Safety and Health Program	000	3	4/18/2017	NON-COMPETING CONTINUATION	$470,266
														Subtotal = $470,266

Issue Date FY: 2016 ( Subtotal = $524,614 )
2016	2016	AEROSOL DYNAMICS INC	935 GRAYSON STREET	BERKELEY	CA	94710	ALAMEDA	USA	Occupational Safety and Health Program	000	2	8/19/2016	COMPETING CONTINUATION	$524,614
														Subtotal = $524,614

Grand Total All Awards = $994,880

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Size-Resolved Measurement of Ultrafine and Nanometer Particle Concentrations

Award Number: R44OH010515

ORGANIZATION: OFFICE OF HEALTH AND SAFETY(OHS)

OPDIV: CDC

AWARD CLASS: DISCRETIONARY

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

PERIOD OF PERFORMANCE START DATE: 09/01/2016

PERIOD OF PERFORMANCE END DATE: 08/31/2018

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