magnetite nanoparticles – TechConnect Briefs

Controlled Synthesis of Monodisperse Magnetic Porous/Hollow Nanostructures for Biomedical Applications

Kim K.S., Nguyen D.T., Kangwon National University, KR

Recently, studies on therapeutic applications of the magnetic nanoparticles have gained more momentum. The use of magnetic nanoparticles for hyperthermia has shown great promise in the field of nanobiomedicine. The porous/hollow structure also exhibited a [...]

Removal of Selenium from Aqueous Solutions Using Magnetite Nanoparticles as Adsorbent

Wei X., Bhojappa S., Lin L.-S., Viadero R.C., SUNY Institute of Technology, US

Selenium (Se) is an emerging contaminant for many regions worldwide especially for areas impacted by past or current mining activities. The objective of this study was to evaluate the effectiveness of synthesized magnetite nanoparticles as [...]

Beta-glucosidase immobilization on synthetic superparamagnetic magnetite nanoparticles and their application in saccharification of wheat straw and Eucalyptus globulus pulps

Valenzuela R., Castro J.F., Parra M.C., Baeza J., Free J., Biotechnology Center, University of Concepcion, CL

Beta-glucosidase from T. reesei was successfully immobilized on synthetic superparamagnetic magnetite (Fe3O4) nanoparticles with a mean diameter of 10 nm, silanized and amino-functionalized with 3-aminopropyltriethoxysilane (3-APTS). When silanized and coated the saturation magnetization decreased from [...]

Beta-glucosidase immobilization on synthetic superparamagnetic magnetite nanoparticles and their application in saccharification of wheat straw and Eucalyptus globulus pulps

Valenzuela R., Castro J.F., Parra M.C., Baeza J., Free J., Biotechnology Center, University of Concepcion, CL

Beta-glucosidase from T. reesei was successfully immobilized on synthetic superparamagnetic magnetite (Fe3O4) nanoparticles with a mean diameter of 10 nm, silanized and amino-functionalized with 3-aminopropyltriethoxysilane (3-APTS). When silanized and coated the saturation magnetization decreased from [...]

Removal of Selenium from Aqueous Solutions Using Magnetite Nanoparticles as Adsorbent

Wei X., Bhojappa S., Lin L.-S., Viadero R.C., SUNY Institute of Technology, US

Selenium (Se) is an emerging contaminant for many regions worldwide especially for areas impacted by past or current mining activities. The objective of this study was to evaluate the effectiveness of synthesized magnetite nanoparticles as [...]

The influence of magnetite nanoparticles (MCS-B) on the hemolysis of erythrocytes

Belousov A.N., Laboratory of Applied Nanotechnology, UA

In Ukraine the first medical nanotechnology drugs were synthesized and patented in 1998 (http://www.nanolab.com.ua). These are such drugs as intracorporeal biocorrector (ICBB), magnet-controlled sorbent (MCS-B) and Micromage-B (Belousov A.N., 1997, 1998, 2000). Basis of the [...]

Phagocytizing cells recruitment and activity in response to pulmonary deposition of magnetite particles of different size in nanometer and micrometer ranges

Privalova L.I., Katsnelson B.A., Kuzmin S.V., Degtyareva T.D., Sutunkova M.P., Yeremenko O.S., Khodos M.Y., Kositsina A.N., Malakhova N.A., Glazyrina J.A., Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, RU

It is often maintained that nanoparticles are poorly recognized by host’s defence mechanisms and, specifically, cause weak attraction of phagocytes and are therefore removed from lungs ineffectively. However, intratracheal instillation of water-suspended magnetite nanoparticles caused [...]

Magnetite nanoparticles as moderators of extreme conditions during Bradyrhizobium japanicum growth

Ghalamboran M.R., Ramsden J.J., Cranfield University, UK

The aim of this study was to investigate whether magnetite nanoparticles and pH simultaneously affect Bradyrhizobium growth rate (BGR) in liquid media, with a view to diminishing sensitivity to high pH and, hence, enhancing survival [...]

Spectrum of Application Magnetite Nanopaticles in Medicine

Belousov A.N., Laboratory Application Nanotechnology, UA

Nowadays nanotechnology as a new direction of science allows to develop therapeutic methods of the endogenous intoxication syndrome and to create a new class of biocompatible sorbents. In Ukraine first preparations of medical nanotechnology were [...]

Hyperhtermia effect of surface-modified magnetite nanoparticles in a microfluid system

Lin C.Y., Ho K.C., National Taiwan University, TW

Fe3O4 nanoparticles (NPs) was first synthesized via coprecipiatation. After synthesis and purification of the Fe3O4 NPs, poly(acrylic acid) (PAA) was coated on them at specified conditions. The coating process is not possible at pH higher [...]