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Title: Polymeric salt bridges for conducting electric current in microfluidic devices

Abstract

A "cast-in-place" monolithic microporous polymer salt bridge for conducting electrical current in microfluidic devices, and methods for manufacture thereof is disclosed. Polymeric salt bridges are formed in place in capillaries or microchannels. Formulations are prepared with monomer, suitable cross-linkers, solvent, and a thermal or radiation responsive initiator. The formulation is placed in a desired location and then suitable radiation such as UV light is used to polymerize the salt bridge within a desired structural location. Embodiments are provided wherein the polymeric salt bridges have sufficient porosity to allow ionic migration without bulk flow of solvents therethrough. The salt bridges form barriers that seal against fluid pressures in excess of 5000 pounds per square inch. The salt bridges can be formulated for carriage of suitable amperage at a desired voltage, and thus microfluidic devices using such salt bridges can be specifically constructed to meet selected analytical requirements.

Inventors:
 [1];  [2];  [3]
  1. Livermore, CA
  2. San Diego, CA
  3. Humacao, PR
Publication Date:
Research Org.:
Sandia National Laboratories (SNL-CA), Livermore, CA
Sponsoring Org.:
USDOE
OSTI Identifier:
971082
Patent Number(s):
7,618,524
Application Number:
10/916,310
Assignee:
Sandia Corporation (Livermore, CA) ALO
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Shepodd, Timothy J, Tichenor, Mark S, and Artau, Alexander. Polymeric salt bridges for conducting electric current in microfluidic devices. United States: N. p., 2009. Web.
Shepodd, Timothy J, Tichenor, Mark S, & Artau, Alexander. Polymeric salt bridges for conducting electric current in microfluidic devices. United States.
Shepodd, Timothy J, Tichenor, Mark S, and Artau, Alexander. Tue . "Polymeric salt bridges for conducting electric current in microfluidic devices". United States. doi:. https://www.osti.gov/servlets/purl/971082.
@article{osti_971082,
title = {Polymeric salt bridges for conducting electric current in microfluidic devices},
author = {Shepodd, Timothy J and Tichenor, Mark S and Artau, Alexander},
abstractNote = {A "cast-in-place" monolithic microporous polymer salt bridge for conducting electrical current in microfluidic devices, and methods for manufacture thereof is disclosed. Polymeric salt bridges are formed in place in capillaries or microchannels. Formulations are prepared with monomer, suitable cross-linkers, solvent, and a thermal or radiation responsive initiator. The formulation is placed in a desired location and then suitable radiation such as UV light is used to polymerize the salt bridge within a desired structural location. Embodiments are provided wherein the polymeric salt bridges have sufficient porosity to allow ionic migration without bulk flow of solvents therethrough. The salt bridges form barriers that seal against fluid pressures in excess of 5000 pounds per square inch. The salt bridges can be formulated for carriage of suitable amperage at a desired voltage, and thus microfluidic devices using such salt bridges can be specifically constructed to meet selected analytical requirements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 17 00:00:00 EST 2009},
month = {Tue Nov 17 00:00:00 EST 2009}
}

Patent:

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