Nanoparticle magnesium

Bates et al. reported the construction and characterization of a gold nanoparticle wire assembled using Mg -dependent RNA-RNA interactions for the future assembly of practical nanocircuits [31]. They used magnesium ion-mediated RNA-RNA loop-receptor interactions, in conjunction with 15 nm or 30 nm gold nanoclusters derivatized with DNA to prepare self-assembled nanowires. A wire was deposited between lithographically fabricated nanoelectrodes and exhibited non-linear activated conduction by electron hopping at 150-300 K (Figure 16). 

Xiong F1M, Shchukin DG, Mohwald H, Xu Y, Xia YY (2009) Sonochemical synthesis of hghly luminescent zinc oxide nanoparticles doped with magnesium (II). Angew Chem Int Ed... 

Stengl V, Bakardjieva S, Marikova M, Bezdicka P, Subrt J (2003) Magnesium oxide nanoparticles prepared by ultrasound enhanced hydrolysis of Mg-alkoxides. Mater Lett 57 3998 1003... 

Shao et al. [25] prepared Mg Ni from magnesium and nickel nanoparticles produced by hydrogen plasma-metal reaction. Two preparation methods were developed to obtain the compound. One is heating the nanoparticles under 0.10 MPa argon pressure at 430°C and the other is under 3.00 MPa hydrogen pressure at 280°C. No hydrogen storage properties of this material were assessed. 

Some potentially relevant work concerns the attachment of magnesium hydroxide nanoparticles onto multiwall carbon nanotubes (MWCNTs).92 These were prepared from water-in-oil emulsions specifically for conversion into MgO to functionalize and preserve the mechanical and the electrical properties of the CNTs, although not for fire-retardant purposes. However, although more speculative, this work may be of interest as it has been reported that combinations of M WCNT and micron-sized particles of ATH in EVA function as very efficient fire retardants through enhanced char formation and coherency.93... 

Lv, J., Qie, L., and Qu, B., Controlled synthesis of magnesium hydroxide nanoparticles with different morphological structures and related properties in flame retardant ethylene-vinyl acetate blends, Nanotechnology, 15, 1576-1581, 2004. 

In numerous works dealing with the combination of nanoparticles and FR compounds, surface modifications of nanoparticles were only aimed to promote good dispersion of the nanoparticles into the polymer matrix (with intercalated or exfoliated morphologies for layered silicates as nanoparticles), even in the presence of the usual FRs, for example ammonium polyphosphate (APP) or magnesium hydroxide (MH). The initial aim was to combine the individual effects of each component to achieve strong synergistic effects. 

From research into battery applications its is known that magnesium salts are unstable in most polar aprotic solvents, such as esters, acetonitrile, and the standard alkyl carbonate lithium-battery electrolyte solvents. In the literature it is reported that it is possible to have magnesium in liquid ammonia solutions, either prepared electrochemically [55] or by trapping gas-phase nanoparticles by co-condensation [56], It is known that alkali metals can be dissolved in liquid ammonia, resulting in cations... 

Figure 10.28 (a) TEM images of magnesium nanoparticles on carbon support, left bright field and right dark field [140], (b) Thermal programmed desorption (TPD) heating with... 

Although there is much current excitement about nanomaterials, there is really nothing new about nanoscience. In fact, the earliest civilizations used nanoscale materials for a variety of applications. For example, the Mayans used a magnesium aluminum silicate clay called palygorskite, which contained nanosized channels that were filled with water. The Mesopotamian civilizations used colored glass for decorative applications that contained embedded metallic nanoparticles. 

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