Matthew Douglas Munson, Age 44Saint Paul, MN

2002007, Jun 20, 2002

Sep 18, 2001

09/956467

Bernhard Weigl - Seattle WA, US
Ronald Bardell - Redmond WA, US
Andrew Kamholz - Seattle WA, US
Matthew Munson - Seattle WA, US
Eric Schilling - Andover MN, US
Kenneth Hawkins - Sammamish WA, US

G01N033/00

422/058000, 422/100000, 422/102000, 422/068100, 436/180000

Multifluidic devices and methods are provided for enhancing detection of a diffusion pattern formed by particles diffusing between at least tow fluid streams I parallel laminar flow such that an interface is formed between them by increasing the dimension of the streams in the diffusion direct. This may be accomplished by flowing the streams through a transforming turn, or by flowing the streams through a channel having diverging walls. Devices and methods are also provided for enhancing diffusion between two streams comprising changing the interface between said streams from a narrow interface to a broad interface.

2006027, Dec 7, 2006

May 11, 2006

11/382779

Kenneth Hawkins - Sammamish WA, US
David Markel - Boise ID, US
Paul Yager - Seattle WA, US
Matthew Munson - Gaithersburg MD, US

University of Washington - Seattle WA

F15C 1/06

137833000

A method for fabricating an adhesiveless microfluidic device using solvent assisted thermal welding is provided. The method comprises use of a plurality of device layers of a bulk chemical conformation composition having a glass transition temperature that can be disrupted by a disrupting agent without total solvation, wherein the plurality of device layers when assembled define a plurality of defined component features. The device layers are immersed into the disrupting agent for a time period sufficient to disrupt the glass transition temperature of a defined depth of the surfaces of the device layers prior to their removal from the disrupting agent. The plurality of device layers are assembled and registered by contacting the plurality of device layer surfaces to form the defined component features. Pressure and heat are simultaneously applied to bring the assembly to a temperature below the pressure-specific, glass transition temperature of the bulk chemical conformation composition; but above the pressure-specific, glass transition temperature of the disrupted surface layer of the composition, for a time period sufficient to affect a weld between the contacted surfaces of the plurality of device layers. The temperature of the assembly is reduced over a time period sufficient to anneal the contacted surfaces of the plurality of device layers to form the microfluidic device.