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Systems and methods for individually trapping particles from air and measuring the optical spectra or other properties of individual trapped particles

Patent image
ARL

Embodiments of the present invention are directed to systems and methods for continuously sampling particles from air. In one embodiment, a system for continuously sampling particles from air may include: an airflow system configured to continuously draw air including airborne particles into the system; a photophoretic trap that uses photophoretic forces of a laser beam to trap one or more of the airborne particles from the drawn air; a measurement device configured to measure one or more properties of the trapped one or more airborne particles; and a controller configured to repeatedly trap, measure and release one or more airborne particles.

Inventors: 
Hill, Steven C.; Pan, Yongle
Patent Number: 
Technical domain: 
Biotechnology and Healthcare
FIle Date: 
2013-03-11
Grant Date: 
2015-12-29
Grant time: 
1,023 days
Grant time percentile rank: 
18
Claim count percentile rank: 
7
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA AS REPRESENTED BY THE THE