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A Miniature Monitor for Time-Resolved Airborne Particle Chemistry

Award Information

Agency:
Department of Health and Human Services 		Branch:
N/A 		Award ID:
80072 		Program Year/Program:
2009 / SBIR
Agency Tracking Number:
ES014997 		Solicitation Year:
N/A 		Solicitation Topic Code:
NIEHS 		Solicitation Number:
N/A
Small Business Information
Aerosol Dynamics Inc.
935 Grayson St. Berkeley, CA 94710-
View profile »
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2009
Title: A Miniature Monitor for Time-Resolved Airborne Particle Chemistry
Agency: HHS
Contract: 3R44ES014997-03S1
Award Amount: $0.00
 

Abstract:

DESCRIPTION (provided by applicant): Our parent project aims to develop a small, lightweight, battery-powered collector suitable for time-resolved personal and micro-environmental monitoring of the chemical constituents of airborne particles. This revision submission aims to enhance that technology through the development of an air-to-air particle concentrator that is effective for ultrafine and nanometer-sized particles as well as fine particles. This concentrator can serve as a suitable inlet for the mini ature particle collector being developed under the parent project; and that will also be suitable for many other exposure, toxicology and ultrafine particle characterization applications. The approach utilizes our patented water condensation technology, wh erein particles as small as 0.003 5m can be encapsulated in a 3-5m water droplet in a differentially- diffusive, laminar flow. Once enlarged the droplets are aerodynamically focused through converging flow in a sharp-edged orifice. Because residence times of the droplets are short, chemical artifacts are minimized. With this approach we anticipate the focusing and 10-fold air-to-air concentration of particles as small as 0.008 5m. PUBLIC HEALTH RELEVANCE: Ultrafine and fine particles are ubiquitous i n our environment, yet epidemiological studies have shown statistically significant relationships between their concentrations and rates of morbidity and mortality. Ultrafine particles are specifically implicated. Proposed is the development of an instrume nt to concentrate ultrafine and fine airborne particles that will aid in the assessment their toxicity and their levels in the air we breathe.

Principal Investigator:

Susanne V. Hering
5106499360
SUSANNE@AEROSOL.US

Business Contact:

Susanne V. Hering
susanne@aerosol.us
Small Business Information at Submission:

AEROSOL DYNAMICS, INC.
935 GRAYSON ST. BERKELEY, CA 94710

EIN/Tax ID: 943136261
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No