DNA–magnetite nanocomposite materials

Autor: Jin-Ho Choy, Jacques Bonnet, Etienne Duguet, Antoine Vekris, Stéphane Mornet, Fabien Grasset, Josik Portier
Přispěvatelé: Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Victor Segalen - Bordeaux 2, Seoul National University [Seoul] (SNU), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB)
Jazyk: angličtina
Rok vydání: 2000
Předmět:
Zdroj: Materials Letters
Materials Letters, 2000, 42 (3), pp.183-188. ⟨10.1016/S0167-577X(99)00181-0⟩
Materials Letters, Elsevier, 2000, 42 (3), pp.183-188. ⟨10.1016/S0167-577X(99)00181-0⟩
ISSN: 0167-577X
Popis: It is shown here that magnetite nanoparticles can be associated with double-stranded DNA. In a first step, a complex of DNA with Fe 2q and Fe 3q ions is formed. qThen, in a second step, magnetite nanoparticles are formed by increasing the pH. As shown by electrophoresis, the nanoparticles are strongly attached to the nucleic acid. From TEM imaging and Mossbauer measurement, a tentative model for the textural organization of DNA and magnetite is proposed. q 2000 Elsevier ¨
Databáze: OpenAIRE