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introduction of relatively small amounts of nanoparticles has been proven to be a viable method to solve these problems [ 19 ]. The problem of the nanofiller dispersion within the matrix has been tackled by organomodification of the clay nanoplatelets [ 6 , 20

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, in recent years, the synthesis of selenium nanoparticles (SeNPs) and its application has been investigated in food supplementation ( Skalickova et al., 2017 ), food packaging systems ( Vera et al., 2016 ) and nanomedicine ( Hosnedlova et al., 2018

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ceramics due to low coefficient of thermal expansion. It is used in cosmetic products, because of antifungal activity [ 5 ]. Various methods are available for synthesis of ZnO nanoparticles like sol–gel method [ 6 ], electrochemical [ 7 ], spray

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Orvosi Hetilap
Authors: Tamara Horváth, András Papp, Mónika Kiricsi, Nóra Igaz, Vivien Trenka, Gábor Kozma, László Tiszlavicz, Zsolt Rázga, and Tünde Vezér

References 1 Buzea C, Pacheco II, Robbie K. Nanomaterials and nanoparticles: sources and toxicity. Biointerphases 2007; 2: MR17–MR71. 2 Keller AA

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Ni0.5Mn0.1Zn0.4Fe2(C4H2O4)3·6N2H4 precursor and Ni0.5Mn0.1Zn0.4Fe2O4 nanoparticle

Preparation, IR spectral, XRD, SEM-EDS and thermal analysis

Journal of Thermal Analysis and Calorimetry
Authors: U. Gawas, S. Mojumdar, and V. Verenkar

Abstract  

Metal carboxylato-hydrazinates are very good precursors for the synthesis of metal as well as mixed metal oxides as these, most of the times decomposes to nanosized oxides with high surface area at comparatively lower temperatures. In the present study one such novel precursor has been prepared and characterized by XRD, IR, SEM-EDS and chemical analysis. The thermal decomposition of the precursor has also been studied by isothermal, differential scanning calorimetry (DSC) and thermogravimetric analysis (TG). The precursor shows two-step dehydrazination followed by decarboxylation to form Ni0.5Mn0.1Zn0.4Fe2O4. The infrared spectra show N-N stretching frequency at 972 cm−1 which confirms the bidentate bridging hydrazine. XRD confirms the formation of single phase Ni0.5Mn0.1Zn0.4Fe2O4.

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synthesis of the amino-terminated nanocomposites by electrostatic layer-by-layer self-assembly technique for specific targeting of cancer cells. In other work, super paramagnetic monodisperse nanoparticles (NP) of iron oxide 7.6 nm in size were modified with

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Introduction Over the last decade, increasing demand for special materials has led to the conception of composites. Nanoparticles in general, and nanoclays in particular, with their nanometer size, high surface area, and the

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Introduction Development of spinel ferrite nanoparticles has been intensively pursued because of their technological and fundamental scientific importance. Ferrites have received great attention as a result of their magnetic

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cobalt iron-oxide (CoFe 2 O 4 ) nanoparticle that modified poly (methyl methacrylate) nanodielectric system [ 9 ]. With the addition of small quantities of COFe 2 O 4 , the dielectric permittivity of the nanocomposite decreased. Numerical modeling was

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Introduction A lot of efforts have been made by the researchers all over the world to improve the different properties of TiO 2 -based materials especially in crystalline TiO 2 nanoparticles (NPs). Remarkable progress has been

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