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Biological preconcentrator

Patent ·
OSTI ID:943499

A biological preconcentrator comprises a stimulus-responsive active film on a stimulus-producing microfabricated platform. The active film can comprise a thermally switchable polymer film that can be used to selectively absorb and desorb proteins from a protein mixture. The biological microfabricated platform can comprise a thin membrane suspended on a substrate with an integral resistive heater and/or thermoelectric cooler for thermal switching of the active polymer film disposed on the membrane. The active polymer film can comprise hydrogel-like polymers, such as poly(ethylene oxide) or poly(n-isopropylacrylamide), that are tethered to the membrane. The biological preconcentrator can be fabricated with semiconductor materials and technologies.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
7,422,724
Application Number:
10/214,891
OSTI ID:
943499
Country of Publication:
United States
Language:
English

References (3)

Sample pretreatment on microfabricated devices journal February 2002
Synthesis of Poly( N- isopropylacrylamide) on Initiator-Modified Self-Assembled Monolayers journal May 2001
A new fabrication process for planar thin-film multijunction thermal converters journal April 2001

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