Plastic and nonmetallic article shaping or treating: processes – Encapsulating normally liquid material – Liquid encapsulation utilizing an emulsion or dispersion to...
Reexamination Certificate
2002-08-14
2009-11-17
McClendon, Sanza L (Department: 1796)
Plastic and nonmetallic article shaping or treating: processes
Encapsulating normally liquid material
Liquid encapsulation utilizing an emulsion or dispersion to...
C264S004000, C264S004300, C264S004330, C264S004700, C264S004600, C522S084000, C522S086000, C522S085000, C522S104000, C522S107000, C522S113000, C522S117000, C522S116000, C522S120000, C522S121000, C522S153000, C522S150000, C522S154000, C522S178000, C522S179000, C522S182000, C428S402000, C428S402200, C428S402210, C428S402220, C428S402240, C428S403000
Reexamination Certificate
active
07618565
ABSTRACT:
Lipobeads (liposome-encapsulated hydrogels) combine properties of hydrogels and liposomes to create systems that are sensitive to environmental conditions and respond to changes in those conditions in a fast time scale. Lipobeads may be produced by polymerizing anchored or unanchored hydrogels within liposomes or by mixing anchored or unanchored hydrogels with liposomes. Giant lipobeads may be produced by shrinking unanchored nanogels in lipobeads and fusing the resulting lipobead aggregates, long-term aging of anchored or unanchored lipobeads, or mixing anchored or unanchored aggregated nanogels with liposomes. Poly(acrylamide), poly(N-isopropylacrylamide), and poly(N-isopropylacrylamide-co-1-vinylimidazole) lipobeads were produced and characterized.
REFERENCES:
patent: 4520178 (1985-05-01), Sakata et al.
patent: 5464629 (1995-11-01), Monshipouri et al.
patent: 5573934 (1996-11-01), Hubbell et al.
patent: 5626870 (1997-05-01), Monshipouri et al.
patent: 6284375 (2001-09-01), Jin et al.
patent: WO 9704787 (1997-02-01), None
Kim Jin-Chul et al., “Temperature-Sensitivity of Liposomal Lipid Bilayers Mixed with Poly(N-isopropylacrylamide-co-Acrylic Acid”,Journal of Biochemistryvol. 121, No. 1, pp. 15-19. (1997).
Alfonso R. Gennaro, Remington: “The Science and Practice of Pharmacy”, pp. 919.
Kaholek Marian
Kazakov Sergey
Levon Kalle
McClendon Sanza L
Pokotylo John C.
Polytechnic Institute of New York University
Straub & Pokotylo
LandOfFree
Lipobeads and their production does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lipobeads and their production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lipobeads and their production will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4075125