Research Progress in Polymer Complexes and Their Applications

Research Progress in Polymer Complexes and Their Applications 

Cellulose and Paper Department, National Research Centre, Dokki-12622, Cairo, Egypt 

Handbook of Sustainable Polymers Processing and Applications Edited byViJay KumarThakurand Manju KumariThakur Copyright 2016 Pan Stanford Publishing Pte. Ltd. 

Our published articles focused on using carboxymethyl cellulose and hydroxyethyl cellulose, and cellulose acetate, as ligands for cellulose derivative-metal complexes. These derivatives are examples of water-soluble cellulose ethers and solvent-soluble cellulose esters, respectively. The micro-analyses, electronic and IR-spectra, and magnetic susceptibility measurements were used as tools for studying the nature of the chemical structures of cellulose ethers complexes with some transition metals [10-16], while electrical and thermal analyses were carried out to identify the functional properties of cellulose ether provided from chelation with metal ions [17-20]. 

Red shift the band maximum was shifted to a lower wave number blue shift the band maximum was shifted to a higher wave number. 

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Since the early years of DNA complexation with cationic polymers, pioneers from the field of polyelectrolyte complexes between surfactants and/or polymers led solid physico-chemical studies on the complexation of DNA with polymers. But it is only more recently, with the rise of more precise instruments for physico-chemical characterization and appropriate biochemical and biophysical techniques, that the published studies are allowing a direct link to be drawn between physico-chemical characteristics (such as size, charge, etc.) of the DNA/polymer (mostly polycations) complexes, also called polyplexes, and their in vitro and in vivo properties, thus allowing tremendous progresses in the quest towards polyplexes for gene therapy and their application beyond research laboratories. 

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