Charged filtration membranes and uses therefor

Details Charged filtration membranes and uses therefor Charged filtration membranes and uses therefor

2006-02-21

2006-02-21

Fortuna, Ana (Department: 1723)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Including surface treatment of porous body

C210S500290, C210S490000, C210S645000

Reexamination Certificate

active

07001550

ABSTRACT:
The invention relates to charged filtration membranes and their use for separation of a protein from solvent, low molecular weight solutes or a mixture of proteins. Modification of the membranes to generate charge includes modification of membrane pores to alter charge within a pore and alter the size of a pore. Consequently, the protein is separated from other solutes in a mixture based on size as well as net protein charge and membrane charge.

REFERENCES:
patent: 4604204 (1986-08-01), Linder et al.
patent: 4604208 (1986-08-01), Chu et al.
patent: 5136032 (1992-08-01), Nagamatsu et al.
patent: 5522991 (1996-06-01), Tuccelli et al.
patent: 1504261 (1968-03-01), None
Tkacik, et al., “A rejection profile test for ultrafiltration membranes & devices”, Biotechnology, vol. 9, pp. 941-946, (1991).
van Reis, et al., ,“High performance tangential flow filtration”, Biotechnology and Bioengineering, vol. 56, No. 1, pp. 71-82, (1997).
van Reis, et al., “High-performance tangential flow filtration using charged membranes”, Journal of Membrane Science, vol. 159, pp. 133-142, (1990).
van Reis, et al., “Protein ultrafiltration”, Encyclopedia of Bioprocess Technology: Fermentation, Biocatalysis, and Bioseparation, vol. 4, John Wiley & Sons, Inc., pp. 2197, (1999).
Zeman, et al., “Microfiltration and Ultrafiltration: Principles and Applications”, Marcel Dekker, Inc., pp. 3 (1996).
Zeman, et al., “Microfiltration and Ultrafiltration: Principles and Applications”, Marcel Dekker, Inc., pp. 299-301 (1996).
Zeman, et al., “Microfiltration and Ultrafiltration: Principles and Applications”, Marcel Dekker, Inc., pp. 308 (1996).
Millesime, et al., “Fractionation of Proteins with Modified Membranes”Bioseparation6: pp. 135-145, 1996.
Millesime, et al., “Ultrafiltration of Lysozyme and Bovine Serum Albumin with Polysulfone Membrane Modified with Quaternized Polyvinylimidazole”,Journal of Membrane Science89: pp. 223-234 (1994).
Miyama, et al., “Charged Ultrafiltration Membrane for Permeation of Proteins”,Journal of Applied Polymer Science, vol. 36, pp. 925-933 (1988).
Nakao, et al., “Separation of Proteins by Charged Ultrafiltration Membranes”, Desalination 70: pp 191-205 (1988).

Affiliated with

Also associated with

Rating

Charged filtration membranes and uses therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Charged filtration membranes and uses therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charged filtration membranes and uses therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3678979