Chemistry: electrical and wave energy – Apparatus – Electrophoretic or electro-osmotic apparatus
Reexamination Certificate
2007-04-10
2007-04-10
Noguerola, Alex (Department: 1753)
Chemistry: electrical and wave energy
Apparatus
Electrophoretic or electro-osmotic apparatus
C204S616000, C204S454000
Reexamination Certificate
active
10386581
ABSTRACT:
Methods and compositions for modifying the surface of a polymeric substrate are provided. In the subject methods, at least a portion of the surface of the polymeric substrate is contacted with a biofouling resistant surfactant composition. At least a portion of the surfactant molecules of the composition are end modified with a non-reactive, charged end group that is charge stable over a pH range of about 2 to 12. The subject methods and compositions find particular use with electrophoretic devices, such as capillary electrophoretic devices.
REFERENCES:
patent: 5885470 (1999-03-01), Parce et al.
NIST Special publication 960-3- The use of Nomenclature in Dispersion Science and Technology, Hackley et al. Aug. 2001.
“Micro- and Nano-Scale Diagnostic techniques,” Ed. K.S. Bruer, Springer Verlag, New York, in press (2003)—3. Electrokinetic Flow Diagnostics, Devasenthipathy & Santiago, p. 124, Figure 3.2.
Huang et al. (“Capillary zone electrophoresis with fluid-impervious polymer tubing inside a fused-silica capillary,” Journal of Chromatography A, 788 (Nov. 14, 1997) 155-164).
“Surface Modified Polymeric Hollow Fiber Columns for Capillary Electrophoresis,” A Dissertation by Peter Liu, published Aug. 1995.
Holmberg et al. (“Poly(ethylene glycol) grafting as a way to prevent protein adsorption and bacterial adherence,” Mittal Festschrift, 1998, pp. 443-460) (note that although published in 1998 (month unknown) the paper was presented at a Congress in Amsterdam held Oct. 16-20, 1995).
Ng et al. (′Prevention of protein adsorption on surfaces by polyethylene oxide-polypropylene oxide—polyethylene oxide triblock copolymers in capillary electrophoresis, Journal of Chromatography (1994), 659 (2), 427-34).
Entry for “polyacrylamide” in Hawley's Condensed Chemical Dictionary, 14th Edition, 2002.
Pratap Bahadur (′Block copolymers—their microdomain formation (in solid state) and surfactant behavior (in solution), Current Science, vol. 80, No. 8, Apr. 25, 2001).
Ren et al. (“Hydrophilic Polymer-Modified Polypropylene Hollow Fibers with Controllable Electroosmotic Flow for Capillary Electrophoresis,” J. Micro Sep. 8:535-540, 1996).
Ng et al. (′Prevention of protein adsorption on surfaces by polyethylene oxide-polypropylene oxide—polyethylene oxide triblock copolymers in capillary electrophoresis, Journal of Chromatography (1994), 659(2), 427-34).
Caldwell Karin
Robotti Karla M.
Swedberg Sally A.
Agilent Technologie,s Inc.
Noguerola Alex
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