Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – X-ray contrast imaging agent
Patent
1995-01-24
1996-10-29
Mullis, Jeffrey C.
Drug, bio-affecting and body treating compositions
In vivo diagnosis or in vivo testing
X-ray contrast imaging agent
424489, 424490, 42421336, A61K 914
Patent
active
055694489
ABSTRACT:
This invention provides a composition comprised of nanoparticles containing a therapeutic or diagnostic agent having a block copolymer linked to at least one anionic group as a surface modifier adsorbed on the surface thereof and a method of making such nanoparticles. The compositions exhibit unexpectedly improved autoclave stability, reduced macrophage uptake, improved toxicological profiles and facilitate particle size reduction such that milling time can be reduced and/or sterile filtration of the nanoparticles can be accomplished.
REFERENCES:
patent: 4304691 (1981-12-01), Farmer, III et al.
patent: 5145684 (1992-09-01), Liversidge et al.
patent: 5318767 (1994-06-01), Liversidge et al.
patent: 5340564 (1994-08-01), Illig et al.
Liversidge Elaine M.
McIntire Gregory L.
Newington Ian M.
Pitt Alan R.
Shaw Jack M.
Mullis Jeffrey C.
Nano Systems L.L.C.
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