title: Mutifuntional GdPO4:Eu3+ hollow spheres: synthesis and magnetic and luminescent properties.
abstract: Mondispersed submicrometer GdPO(4):Eu(3+) hollow spheres were synthesized via an effective one-pot hydrothermal process. These hollow spheres have the average diameter of 200 nm, and the shell thickness is about 20 nm. The surface of the spheres consists of a number of nanorods with diameters of about 10 nm and lengths of about 50-80 nm. Both magnetic and luminescent properties of the obtained Eu(3+)-doped GdPO(4) hollow spheres were investigated. The hysteresis plot (M-H) analysis result indicates their paramagnetic property. The fluorescence spectra demonstrate that they emit orange-red color light originated from the (5)D(0) → (7)F(J) transitions of the Eu(3+) ions. Therefore, the obtained GdPO(4) hollow spheres hold promise for encapsulate drugs with controlled release. Moreover, the GdPO(4):Eu(3+) hollow spheres are attributes for bimodal magnetic resonance imaging (MRI)/optical bioimaging labeling.
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China.
authors.forename: Lihui
authors.initials: L
authors.lastname: Zhang
authors.forename: Meili
authors.initials: M
authors.lastname: Yin
authors.forename: Hongpeng
authors.initials: H
authors.lastname: You
authors.forename: Mei
authors.initials: M
authors.lastname: Yang
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Song
authors.forename: Yeju
authors.initials: Y
authors.lastname: Huang
mesh_terms: D003692:Delayed-Action Preparations / Q000032:analysis / Q000138:chemical synthesis*; D004337:Drug Carriers / Q000032:analysis / Q000138:chemical synthesis*; D005063:Europium / Q000737:chemistry; D005682:Gadolinium / Q000737:chemistry; D006801:Humans; D049449:Luminescence; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008280:Magnetics; D008855:Microscopy, Electron, Scanning; D008863:Microspheres; D057054:Molecular Imaging / Q000379:methods; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry / Q000648:ultrastructure; D010316:Particle Size; D016062:Porosity; D013050:Spectrometry, Fluorescence
chemical_list: D003692:Delayed-Action Preparations; D004337:Drug Carriers; D005063:Europium; D005682:Gadolinium