Invention Grant
- Patent Title: Methods and devices for sample capture using gas-pulse nanoparticle displacement
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Application No.: US16572201Application Date: 2019-09-16
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Publication No.: US11371913B2Publication Date: 2022-06-28
- Inventor: Kermit King Murray , Fabrizio Donnarumma , Jamira Stephenson
- Applicant: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
- Applicant Address: US LA Baton Rouge
- Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
- Current Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
- Current Assignee Address: US LA Baton Rouge
- Agency: Thomas|Horstemeyer, LLP
- Main IPC: G01N1/14
- IPC: G01N1/14 ; G01N1/38

Abstract:
The present disclosure provides for sampling instruments and methods of collecting sample particles. The sampling instrument can include a high-pressure pulsed valve coupled to a gas flow system to displace a sample from a surface. Also included can be a voltage supply coupled to a voltage switch, a suction device, a sample collector, and a collection filter. To collect a sample, extractive particles can be deposited onto a sample present on a substrate. At least a portion of the sample becomes coupled to a portion of the extractive particles to form sample particles. High-pressure gas can be discharged at the sample, thereby aerosolizing a portion of the sample particles to disperse aerosolized sample particles. A portion of the aerosolized sample particles can be collected onto a collection filter to form a collected sample.
Public/Granted literature
- US20200088608A1 METHODS AND DEVICES FOR SAMPLE CAPTURE USING GAS-PULSE NANOPARTICLE DISPLACEMENT Public/Granted day:2020-03-19
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