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Polymeric Nanoparticles Production - CD Bioparticles Polymer is a class of natural or synthetic substances composed of macromolecules that are multiples of monomers. Polymeric nanoparticles are manipulatable materials and have the potential of reabsorption in the body. Due to their favorable properties such as good biocompatibility, easy design and preparation, a variety of structures and interesting bio-mimetic characters, and especially their ability to deliver therapeutic agents directly into the intended site of action with superior efficacy, they have attracted greater attention in the last two decades as a multifunctional nanotechnology-based delivery system.