Microspheres containing condensed polyanionic bioactive agents and methods for their production

   
   

The present invention relates to novel compositions comprising microspheres and/or nanospheres containing condensed polyanionic bioactive agents, such as DNA. The polyanionic bioactive agent in the microspheres and/or nanospheres is preferably condensed using a polycationic condensing agent, such as poly-L-lysine. The present invention further relates to methods for producing the microspheres and/or nanospheres containing condensed polyanionic bioactive agents.

 
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