20140170077 | HIGH-SENSITIVITY MAGNETIC RESONANCE IMAGING NANO-CONTRAST AGENT BASED ON AN ANIONIC POLYMER AND CATIONIC POLYMER ION COMPLEX, AND A PRODUCTION METHOD THEREFOR - The present invention relates to a nano-composite containing anionic and cationic polymers and a method for preparing thereof, and more particularly to a poly-gamma-glutamic acid (γ-PGA)/chitosan/manganese iron oxide nanoparticle composite prepared by encapsulating iron oxide-based nanoparticles in a γ-PGA/chitosan polymer composite using the ionic self-assembly properties of poly-gamma-glutamic acid (γ-PGA) and chitosan, which are biocompatible polymer materials, and to a method for preparing thereof. | 06-19-2014 |