title: Extruded superparamagnetic saloplastic polyelectrolyte nanocomposites.
abstract: Iron oxide nanoparticles of diameter ca. 12 nm were dispersed into polyelectrolyte complexes made from poly(styrenesulfonate) and poly(diallyldimethylammonium). These nanocomposites were plasticized with salt water and extruded into dense, tough fibers. Magnetometry of these composites showed they retained the superparamagnetic properties of their constituent nanoparticles with saturation magnetization that scaled with the loading of nanoparticles. Their superparamagnetic response allowed the composites to be heated remotely by radiofrequency fields. While the modulus of fibers was unaffected by the presence of nanoparticles the toughness and tensile strength increased significantly.
authors.affiliation: Department of Chemistry & Biochemistry, The Florida State University , Tallahassee, Florida 32306-4390, United States.
authors.forename: Jingcheng
authors.initials: J
authors.lastname: Fu
authors.forename: Qifeng
authors.initials: Q
authors.lastname: Wang
authors.forename: Joseph B
authors.initials: JB
authors.lastname: Schlenoff
mesh_terms: D004337:Drug Carriers; D004573:Electrolytes / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry; D005898:Glass / Q000737:chemistry; D007477:Ions; D007501:Iron / Q000737:chemistry; D008280:Magnetics; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry; D055095:Optics and Photonics; D010969:Plastics; D011108:Polymers / Q000737:chemistry; D011846:Radio Waves; D012492:Salts / Q000737:chemistry; D055672:Static Electricity; D013696:Temperature; D013718:Tensile Strength
chemical_list: D004337:Drug Carriers; D004573:Electrolytes; D005290:Ferric Compounds; D007477:Ions; D010969:Plastics; D011108:Polymers; D012492:Salts; C000499:ferric oxide; D007501:Iron
keywords: PDADMA; PSS; SPION; magnetic nanoparticle; polyelectrolyte complex; radiofrequency heating