Intellectual Property Law

US Patent 7556826 - Chewable nanoparticle composition for drug delivery

This patent from GP Medical teaches a nanoparticle drug delivery system for oral administration of proteins or peptides and suitable for animal feeding. Claim 1 reads:

1. A chewable composition for feeding an animal subject comprising a filler substance and nanoparticles that are blended with said filler substance, said nanoparticles comprising:

a shell portion that is dominated by positively charged chitosan,

a core portion that contains negatively charged substrate,

wherein said negatively charged substrate is at least partially neutralized with a portion of said positively charged chitosan in the core portion,

wherein said substrate is PGA, and

at least one bioactive agent loaded within said nanoparticles.

Full post as published by TinytechIP on July 08, 2009 (boomark / email).