| abstract |
The present invention provides a method of producing at least one of nanoparticles and microparticles of a biologically active substance having powder handling ability superior to powder produced by the conventional particle size reduction method. Kind Code: A1 A solid biologically active substance can be milled in a grinder for a time sufficient to produce particles of said biologically active substance dispersed in an at least partially milled grinding material. A method of dry grinding with a grinding matrix. 【Selection chart】 None |