نتایج جستجو برای: magnetite nanoparticle loaded

تعداد نتایج: 76809  

Journal: :analytical and bioanalytical chemistry research 0
elaheh madrakian faculty of chemistry, bu-ali sina university, hamedan, iran ezzat ghaemi faculty of chemistry, bu-ali sina university, hamedan, iran mazaher ahmadi faculty of chemistry, bu-ali sina university, hamedan, iran

this paper reports on synthesis of a magnetic adsorbent for wastewater treatment purposes. in this regard, platanus orientalis waste leaves were chosen as a cheap material for preparing the magnetic adsorbent by loading magnetite nanoparticles on it. the synthesized adsorbent was characterized using scanning electron microscope and x-ray diffractometer. then, it was used for magnetic solid phas...

2016
P. J. Vikesland R. L. Rebodos J. Y. Bottero

Magnetite nanoparticles are redox active constituents of subsurface and corrosive environments. In this study, we characterized the aggregation and sedimentation behavior of well characterized magnetite nanoparticle clusters using dynamic light scattering (DLS), UV-vis-NIR spectroscopy, and small angle X-ray scattering (SAXS). Both unfunctionalized (NaOH-magnetite) and tetramethylammonium hydro...

2015
Carlos Basualto José Gaete Lorena Molina Fernando Valenzuela Claudia Yañez Jose F Marco

In this work, an adsorbent was prepared based on the attachment of organophosphorus acid extractants, namely, D2EHPA, CYANEX 272, and CYANEX 301, to the surface of superparamagnetic magnetite (Fe3O4) nanoparticles. The synthesized nanoparticles were coated with oleic acid, first by a chemisorption mechanism and later by the respective extractant via physical adsorption. The obtained core-shell ...

2010
Takeshi Kobayashi

Magnetic nanoparticle-mediated intracellular hyperthermia has been a largely experimental modality of hyperthermia, but this treatment modality has the potential to achieve tumor targeted heating without any side effects. The technique consists of targeting magnetic nanoparticles to tumor tissue and then applying an external alternating magnetic field to induce heat generation by the magnetic n...

Journal: :Nanoscale 2016
Yu Jin Kim Bum Chul Park June Park Hee-Dae Kim Nam Hoon Kim Yung Doug Suh Young Keun Kim

Magnetite nanoparticles combined with polymers produce white-light emission under multiphoton laser irradiation. Understanding the photonic reaction in magnetite-polymer composites is critical for application of magnetite NPs as photothermal agents. Laser irradiated magnetite nanoparticle-poly(methyl methacrylate) (PMMA) composites exhibit fluorescence due to the carbon double-bond formation re...

2014
Anne-Kathrin Barthel Martin Dass Melanie Dröge Jens-Michael Cramer Daniela Baumann Markus Urban Katharina Landfester Volker Mailänder Ingo Lieberwirth

In recent years, the development of smart drug delivery systems based on biodegradable polymeric nanoparticles has become of great interest. Drug-loaded nanoparticles can be introduced into the cell interior via endocytotic processes followed by the slow release of the drug due to degradation of the nanoparticle. In this work, poly(L-lactic acid) (PLLA) was chosen as the biodegradable polymer. ...

Journal: :jundishapur journal of microbiology 0
mansoureh mirhendi department of biology, university of isfahan, isfahan, ir iran giti emtiazi department of biology, university of isfahan, isfahan, ir iran; department of biology, university of isfahan, isfahan, ir iran. tel: +98-3117932457, fax: +98-3117932456. email: rasoul roghanian department of biology, university of isfahan, isfahan, ir iran

results analysis by xrd showed 78.1% zno (sized 24 nm), 2.5% zn (sized 44.88 nm) and 4.8% zns (sized 12 nm) produced by p. stutzeri. the nanoparticles showed anti-bacterial activity against some of the gram positive and negative bacteria. in addition, the nanoparticles showed magnetic properties. the best condition for nano zinc production was at ph 7, in the light and at 37 °c. czcc gene with ...

2018
Richard Mayne James Whiting Andrew Adamatzky

The nanotechnology revolution has allowed us to speculate on the possibility of hybridising nanoscale materials with live substrates, yet significant doubt still remains pertaining to the effects of nanomaterials on biological matter. In this investigation, we cultivate the ciliated protistic pond-dwelling microorganism Paramecium caudatum in the presence of excessive quantities of magnetite na...

2017
You-Hwan Son Youngsoo Jung Heesuk Roh Jung-Kun Lee

Stable hydrophobic nanocomposites of magnetic nanoparticles and clay are prepared by the self-assembly of magnetite (Fe3O4) nanoparticles on surfaces of exfoliated clay platelets. Due to the attractive interaction between hydrophobic groups, oleic acid coated nanoparticles are strongly attached to the surface of cetyl trimethylammonium cation coated clay platelets in organic media. Crystal stru...

Journal: :Biotechnology journal 2011
Takeshi Kobayashi

Magnetic-nanoparticle-mediated intracellular hyperthermia has the potential to achieve localized tumor heating without any side effects. The technique consists of targeting magnetic nanoparticles to tumor tissue followed by application of an external alternating magnetic field that induces heat through Néel relaxation loss of the magnetic nanoparticles. The temperature in tumor tissue is increa...

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