Results 201 to 210 of about 48,877 (253)

Bioinspired synthesis of magnetite nanoparticles

Chemical Society Reviews, 2016
Magnetite (Fe3O4) is a widespread magnetic iron oxide encountered in many biological and geological systems, and also in many technological applications.
Giulia Mirabello, Nico A J M Sommerdijk
exaly   +3 more sources

Size-Controlled Synthesis of Magnetite Nanoparticles

Journal of the American Chemical Society, 2002
Monodisperse magnetite nanoparticles have been synthesized by high-temperature solution-phase reaction of Fe(acac)3 in phenyl ether with alcohol, oleic acid, and oleylamine. Seed-mediated growth is used to control Fe3O4 nanoparticle size, and variously sized nanoparticles from 3 to 20 nm have been produced.
Shouheng Sun, Hao Zeng
exaly   +3 more sources

Characterization of magnetite nanoparticles

2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2014
This paper deals with the chemical preparation and magnetic characterization of nanoparticles of magnetite. A new hydrothermal synthesis of magnetite is adopted to prepare samples with different particle sizes and magnetic measurements are performed in two different laboratories adopting two different measurement methods.
Bertolucci, E., MARRACCI, MIRKO, RASPOLLI GALLETTI, ANNA MARIA, TELLINI, BERNARDO, Visone, C.   +4 more
openaire   +2 more sources

New Magnetically Responsive Polydicarbazole‐Magnetite Nanoparticles. [PDF]

ChemInform, 2004
Magnetically responsive COOH-polydicarbazole-magnetite nanocomposites have been prepared by chemical oxidation of three COOH-dicarbazole monomers and - in the presence of magnetite nanoparticles. These functionalized nanoparticles have been tested for DNA hybridization experiments.
Lellouche, Jean-Paul, Perlman, Nurit, Joseph, Augustine, Govindaraji, Senthil, Buzhansky, Ludmila, Yakir, Aline, Bruce, Ian J.   +6 more
openaire   +2 more sources

Stimuli-Responsive Magnetite Nanoparticle Monolayers

The Journal of Physical Chemistry C, 2011
The stimuli-responsive behavior of copolymer-capped NPs (Fe 3O4@MEO2MA90-co-OEGMA10 and Fe3O4@MEO2MA) was studied in the temperature interval between 6 and 43 °C at the air/water interface, and at 20 and 37 °C on the surface of 150 mM NaCl, 1 M NaCl, and 2% citric acid aqueous solutions.
Stefaniu, C., Chanana, M., Wang, D., Brezesinski, G., Möhwald, H.   +4 more
openaire   +3 more sources

Organophosphorous functionalization of magnetite nanoparticles

Colloids and Surfaces B: Biointerfaces, 2013
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.
B, Kalska-Szostko, M, Rogowska, D, Satuła   +2 more
openaire   +2 more sources

Lanthanide(III)-Doped Magnetite Nanoparticles

Journal of the American Chemical Society, 2009
Nearly monodisperse lanthanide-doped magnetite nanoparticles were obtained by thermally decomposing a mixture of Fe(acac)(3) and Ln(acac)(3) (acac = acetylacetonate; Ln = Sm, Eu, Gd) in the presence of passivating surfactants. Magnetic studies revealed room-temperature ferromagnetic behaviors of these doped nanoparticles, distinctly different from ...
Channa R, De Silva, Steve, Smith, Inbo, Shim, Jeffrey, Pyun, Timothy, Gutu, Jun, Jiao, Zhiping, Zheng   +6 more
openaire   +2 more sources

Extracellular Synthesis of Magnetite and Metal-Substituted Magnetite Nanoparticles

Journal of Nanoscience and Nanotechnology, 2006
We have developed a novel microbial process that exploits the ability of Fe(III)-reducing microorganisms to produce copious amounts of extracellular magentites and metal-substituted magnetite nanoparticles. The Fe(III)-reducing bacteria (Theroanaerobacter ethanolicus and Shewanella sp.) have the ability to reduce Fe(III) and various metals in aqueous ...
Y, Roh, H, Vali, T J, Phelps, J W, Moon
openaire   +2 more sources

Stability of core–shell magnetite nanoparticles

Colloids and Surfaces B: Biointerfaces, 2014
In the paper, we present three different types of magnetite nanoparticles which were prepared from co-percipitation of iron (II) and (III) chlorides in aqueous solution with and without SiO2 and from thermal decomposition of iron (III) acetylacetonate in nonaqeous solutions.
B, Kalska-Szostko, U, Wykowska, D, Satuła, E, Zambrzycka   +3 more
openaire   +2 more sources

Tissue Engineering Using Magnetite Nanoparticles

2011
The major advantage of magnetic manipulation is "remote control." Magnetic labeling of cells with magnetic nanoparticles enables the manipulation of cells and also the control of cell functions by applying an external magnetic field. "Functional" magnetite nanoparticles were developed for cell manipulation using magnetic force, and the magnetite ...
Akira, Ito, Masamichi, Kamihira
openaire   +2 more sources