Amanda N Goyette

US Patent:

20070121114, May 31, 2007

Filed:

Nov 28, 2006

Appl. No.:

11/604881

Inventors:

Shaun Berry - Chelmsford MA, US
Amanda Goyette - Chelmsford MA, US
Ronald Hoffeld - Cambridge MA, US
Jonathan Pitts - Westford MA, US

International Classification:

G01N 21/00

US Classification:

356442000

Abstract:

This invention provides devices and apparatuses comprising the same, for windowless optical detection of particle-laden samples, for example aerosols or fluid suspensions. The devices make use of passive sheath flow as a mechanism for containing aerosol/fluid suspension flow. The operation of the device reduces particle loss inherent to conventional windowless optical detection schemes. Methods of optical detection and/or analysis of or the particles in a sample using devices of this invention are described.