title: 2, 2'-(Phenylazanediyl) diacetic acid modified Fe3O4@PEI for selective removal of cadmium ions from blood.
abstract: A water-dispersible and supermagnetic nanocomposite (PAD-PEG-Fe(3)O(4)@PEI) has been successfully synthesized using polyethylenimine (PEI, Mol MW = 10000) coated supermagnetic Fe(3)O(4)-NH(2) which was modified with 2, 2'-(phenylazanediyl) diacetic acid (PAD) through the bridge of poly(ethylene glycol) (PEG, Mol MW = 2000). The average particle size of PAD-PEG-Fe(3)O(4)@PEI was determined by TEM, and was about 50 nm. From magnetic hysteresis cycles for PAD-PEG-Fe(3)O(4)@PEI at room temperature, the saturation magnetization (Ms) was shown to be 58.14 emu g(-1). Inductively coupled plasma spectrometry (ICP) analysis showed that the designed magnetic nanocomposite can remove 98% and 80% of Cd(2+) from water and blood, respectively.
authors.affiliation: Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China. jinjun@lzu.edu.cn
authors.forename: Jun
authors.initials: J
authors.lastname: Jin
authors.forename: Fang
authors.initials: F
authors.lastname: Yang
authors.forename: Fengwei
authors.initials: F
authors.lastname: Zhang
authors.forename: Wuquan
authors.initials: W
authors.lastname: Hu
authors.forename: Shao-bo
authors.initials: SB
authors.lastname: Sun
authors.forename: Jiantai
authors.initials: J
authors.lastname: Ma
mesh_terms: D002104:Cadmium / Q000097:blood* / Q000302:isolation & purification* / Q000633:toxicity; D006801:Humans; D066298:In Vitro Techniques; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000627:therapeutic use / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry / Q000627:therapeutic use / Q000648:ultrastructure; D036103:Nanotechnology; D011092:Polyethylene Glycols / Q000737:chemistry; D011094:Polyethyleneimine / Q000737:chemistry
chemical_list: D058185:Magnetite Nanoparticles; D002104:Cadmium; D011092:Polyethylene Glycols; D011094:Polyethyleneimine