title: Organophosphorous functionalization of magnetite nanoparticles.
abstract: In this work magnetite nanoparticles covered by gold and silver shell were obtained. Analyzed particles were modified by two kinds of organophosphorous compounds: 3-phosphonopropionic acid and 16-phosphonohexadecanoic acid. Enzyme immobilization on particles modified in such a way was tested. The crystal structure of obtained nanoparticles was characterized by transmission electron microscopy and X-ray diffraction. Possible changes on the surfaces were analyzed by the use of infrared spectroscopy. Magnetic properties were studied by Mössbauer spectroscopy.
authors.affiliation: Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland. Electronic address: kalska@uwb.edu.pl.
authors.forename: B
authors.initials: B
authors.lastname: Kalska-Szostko
authors.affiliation: Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Rogowska
authors.affiliation: Faculty of Physics, University of Bialystok, Lipowa 41, 15-424 Bialystok, Poland.
authors.forename: D
authors.initials: D
authors.lastname: Satuła
mesh_terms: D006046:Gold / Q000737:chemistry; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D009943:Organophosphorus Compounds / Q000737:chemistry*; D012834:Silver / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D015204:Spectroscopy, Mossbauer; D014961:X-Ray Diffraction
chemical_list: D058185:Magnetite Nanoparticles; D009943:Organophosphorus Compounds; D012834:Silver; C003128:beta-phosphonopropionic acid; D006046:Gold
keywords: IR spectroscopy; Magnetic nanoparticles; Organophosphorous modification