Alex G Dickinson

US Patent:

20040146431, Jul 29, 2004

Filed:

Dec 4, 2003

Appl. No.:

10/729242

Inventors:

Axel Scherer - Laguna Beach CA, US
Alex Dickinson - Laguna Beach CA, US

International Classification:

G01N021/29

US Classification:

422/082050

Abstract:

A microsensor for sensing a substance comprises a substrate, a source of light, an optical microresonator or semiconductor optical ring microresonator fabricated in the substrate exposed to the substance to allow an interaction between the microresonator and substance, a waveguide coupling the source of light to the optical microresonator, and a detector coupled to the microresonator to measure the resonant frequency of the microresonator, the absorption loss of whispering gallery modes in the microresonator or the quality factor of the microresonator, which are sensitive to interaction of the substance with the optical microresonator. A polymer coating disposed on the microresonator is reactive with the substance. The microsensor may comprise a plurality of microresonators corresponding to a plurality of different resonant frequencies to generate an absorption spectrum of the substance.

US Patent:

20090011417, Jan 8, 2009

Filed:

Mar 7, 2008

Appl. No.:

12/044922

Inventors:

George Maltezos - Fort Salonga NY, US
Axel Scherer - Laguna Beach CA, US
Jingqing Huang - Pasadena CA, US
Alex Dickinson - Laguna Beach CA, US
Matthew Johnston - Woodbridge CA, US

International Classification:

C12Q 1/68
C12M 1/00
C12M 1/24
G06Q 90/00
C12M 1/33
C07H 21/00

US Classification:

435 6, 4353091, 4352891, 4353041, 4353061, 536 2541, 705500

Abstract:

The invention provides, in different aspects, a system, sample preparation device, sample processing cartridge, kit, methods of use, business methods, and computer program product.