Synthesis and characterization of Fe3O4 nanoparticles …

However, Huang et al., synthesized silver and gold nanoparticles using the sundried Cinnamomum camphora leaf extract 23. A simple green synthesis method for production of well-defined silver nanowires was reported recently by Lin et al24. The method involves reduction of silver nitrate with the broth of sundried Cassia fistula leaf at room temperature without using any additive. Various plants/plant tissues, nanoparticles synthesized using them, their shape and size and the references are listed in Table 1.

Synthesis of Fe3O4 Nanoparticles and their Magnetic ..

T1 - Synthesis of talc/Fe3O4 magnetic nanocomposites using chemical co-precipitation method

Synthesis of Fe 3 O 4 nanoparticles and their magnetic properties ..

Due to incredible properties nanoparticles have become significant in many fields in the recent years, such as energy, health care, environment, agriculture, etc. The preparation of nanoparticles are carried out either by (i) Nanoparticles synthesis or by (ii) Processing of nanomaterials into nanostructure particles 3. The silver nanoparticles are prepared by using physical, chemical and biological methods 4. The physical and chemical methods are very expensive 5. Biological methods of nanoparticles synthesis would help to remove harsh processing conditions by enabling the synthesis at physiological pH, temperature, pressure, and at the same time at lower cost. Large number of micro organisms have been found capable of synthesizing inorganic nanoparticles composite either intra or extracellularly 6.

Size Controllable Synthesis of Magnetite Fe3O4 Nanoparticles

In view of all these, a detail survey of available literature for various biosynthesis methods, their corresponding merits and demerits, numerous applications of silver nanoparticles and future aspects of synthesis and applications of nanoparticle are presented in this review.

Synthesis and Characterization of Superparamagnetic Fe3O4@SiO2 Nanoparticles.
BIOSYNTHESIS OF NANOPARTICLES

PRICM-5: Chemical Synthesis of Magnetic Fe 3 O 4 Nanoparticles

In this study, carboxymethyl chitosan bound Fe3O4 magnetic nanoparticles (CC-Fe3O4 NPs) was synthesized by the binding of carboxymethyl chitosan (CC) onto the surface of Fe3O4 magnetic nanoparticles, which was prepared by coprecipitating method. The CC-Fe3O4 nanoparticles was characterized by transmission electron microscopy (TEM), X-ray diffractometer (XRD), vibrating sample magnetometer (VSM), Nucleus Magnetic Resonans (NMR) and Fourier Transform Infra Red (FTIR). TEM studies confirmed that the Fe3O4 and CC-Fe3O4 particles have a particle size ranges from 9.73-12.30 nm and 9.70-12.50 nm, respectively. The magnetic properties of the Fe3O4 particles were verified using VSM. Their saturation magnetization, remnant magnetization and coercivity were 61.0 emu/g, 2.70 emu/g and 38.20 G, respectively. FTIR studies showed the appearance of peaks at 1629 cm-1 and 1397 cm-1 which were characteristic of COOM (M = metal ions) bands, indicating the formation of the iron carboxylate.

and , “Synthesis and Characterization of Superparamagnetic Fe3O4@SiO2 Nanoparticles” Journal of the Korean Chemical Society, 1.

Preparation and antibacterial activity of Fe3O4 @ Ag nanoparticles ..

170. Xie J, Xu C, Kohler N, Hou Y, Sun S. Controlled PEGylation of monodisperse Fe3O4 nanoparticles for reduced non-specific uptake by macrophage cells. 2007;19:3163-6

Facile synthesis and characterization of polyethylenimine-coated Fe3O4 superparamagnetic nanoparticles for cancer cell separation.

Synthesis of Fe3O4 Nanoparticles from Ironstone ..

AB - The aim of this research was to synthesize and develop a new method for the preparation of iron oxide (Fe3O4) nanoparticles on talc layers using an environmentally friendly process. The Fe3O4 magnetic nanoparticles were synthesized using the chemical co-precipitation method on the exterior surface layer of talc mineral as a solid substrate. Ferric chloride, ferrous chloride, and sodium hydroxide were used as the Fe3O4 precursor and reducing agent in talc. The talc was suspended in deionized water, and then ferrous and ferric ions were added to this solution and stirred. After the absorption of ions on the exterior surface of talc layers, the ions were reduced with sodium hydroxide. The reaction was carried out under a nonoxidizing oxygen-free environment. There were not many changes in the interlamellar space limits (d-spacing=0.94-0.93nm); therefore, Fe3O4 nanoparticles formed on the exterior surface of talc, with an average size of 1.95-2.59nm in diameter. Nanoparticles were characterized using different methods, including powder X-ray diffraction, transmission electron microscopy, emission scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. These talc/Fe3O4 nanocomposites may have potential applications in the chemical and biological industries.