abstract |
The present invention is directed to a method for purifyingnmicroparticles. These microparticles are prepared in a liquid medium andnare recovered free from impurities and undesirable reaction products byntangential flow filtration. In addition, an apparatus has been claimednto carry out the method of the invention. Since the microparticles arenessentially intended to carry drugs or other biologically activencompounds, the entire process can be carried out aseptically. |