| abstract |
The invention relates to a drug delivery composition comprising an active ingredient and a biologically inert material wherein the biologically inert material is a nanocomposite material. Preferably the biologically inert material is a polymer-clay nanocomposite comprising up to about 40% by weight of nano-sized (1-1000nm) clay particles dispersed in a polymeric material. The active ingredient may be dispersed in the nanocomposite material or absorbed thereto. |