| abstract |
The present invention relates to a system comprising nanoparticles, designed for the release of biologically active molecules, wherein the nanoparticles comprise: (a) at least 40% by weight of chitosan or a derivative thereof, and ( b) less than 60% by weight of cyclodextrin or a derivative thereof, wherein both components a) and b) are mixed without a covalent bond between them. Such systems of the present invention allow for effective association of biologically active molecules, and their sequential release in a suitable biological environment. |