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Title: Method And Apparatus For Reducing Sample Dispersion In Turns And Junctions Of Micro-Channel Systems

Abstract

What is disclosed pertains to improvement in the performance of microchannel devices by providing turns, wyes, tees, and other junctions that produce little dispersion of a sample as it traverses the turn or junction. The reduced dispersion results from contraction and expansion regions that reduce the cross-sectional area over some portion of the turn or junction. By carefully designing the geometries of these regions, sample dispersion in turns and junctions is reduced to levels comparable to the effects of ordinary diffusion. The low dispersion features are particularly suited for microfluidic devices and systems using either electromotive force, pressure, or combinations thereof as the principle of fluid transport. Such microfluidic devices and systems are useful for separation of components, sample transport, reaction, mixing, dilution or synthesis, or combinations thereof.

Inventors:
 [1]
  1. (Danville, CA), Nilson, Robert H. (Cardiff-by-the-Sea, CA)
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
879675
Patent Number(s):
US 6733730
Application Number:
09/707337
Assignee:
Sandia Corporation (Albuquerque, NM)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Griffiths, Stewart K. Method And Apparatus For Reducing Sample Dispersion In Turns And Junctions Of Micro-Channel Systems. United States: N. p., 2004. Web.
Griffiths, Stewart K. Method And Apparatus For Reducing Sample Dispersion In Turns And Junctions Of Micro-Channel Systems. United States.
Griffiths, Stewart K. Tue . "Method And Apparatus For Reducing Sample Dispersion In Turns And Junctions Of Micro-Channel Systems". United States. https://www.osti.gov/servlets/purl/879675.
@article{osti_879675,
title = {Method And Apparatus For Reducing Sample Dispersion In Turns And Junctions Of Micro-Channel Systems},
author = {Griffiths, Stewart K.},
abstractNote = {What is disclosed pertains to improvement in the performance of microchannel devices by providing turns, wyes, tees, and other junctions that produce little dispersion of a sample as it traverses the turn or junction. The reduced dispersion results from contraction and expansion regions that reduce the cross-sectional area over some portion of the turn or junction. By carefully designing the geometries of these regions, sample dispersion in turns and junctions is reduced to levels comparable to the effects of ordinary diffusion. The low dispersion features are particularly suited for microfluidic devices and systems using either electromotive force, pressure, or combinations thereof as the principle of fluid transport. Such microfluidic devices and systems are useful for separation of components, sample transport, reaction, mixing, dilution or synthesis, or combinations thereof.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {5}
}

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