Nanoparticles reporting

The preparation and study of metal nanoparticles constitutes an important area of current research. Such materials display fascinating chemical and physical properties due to their size [62, 63]. In order to prevent aggregation, metal nanoparticles are often synthesized in the presence of ligands, functionalized polymers and surfactants. In this regard, much effort has focused on the properties of nanoparticles dispersed into LCs. In contrast, the number of nanoparticles reported that display liquid crystal behavior themselves is low. Most of them are based on alkanethiolate stabilized gold nanoparticles. 

Table 1. Typical preparations and characterizations of bimetallic nanoparticles reported in literatures. 

Banach et al., in Chapter 12, Synthesis, characteristics, and biocidal activity of silver nanoparticles, report an up-to-date overview about the fabrication and applications of silver nanoparticles in the biomedical field. 

Nowadays there are many microbial sources available for synthesis of nanoparticles, such as marine sources which comprise of marine organisms, and plants, trees, etc. The marine microorganisms have huge diversity in extreme environmental conditions which provides a natural wealth for various applications. Marine microorganisms are also described as nanofactories due to repeated synthesis of nanoparticles reported. These microbial microorganisms can be tested... 

Balbus J, Maynard A, Colvin V, Castranova V, Daston G, Denison R, Dreher K, Goering P, Goldberg A, Kulinowski K, Monteiro-Riviere N, Oberdorster G, Omenn G, Pinkerton K, Ramos K, Rest K, Sass J, Silbergeld E, Wong B Meeting report hazard assessment for nanoparticles-report from an interdisciplinary workshop. Environ Health Perspect 2007, 115 1654-1659. 

Table 5. Magnetic properties of some spinel ferrite nanoparticles reported in the literatures which were measured at room temperature in range of approximately -10 to +10 kOe.

Laser ablation is a relatively new, not fully investigated, and not widely used (in comparison with numerous chemical methods) method for the synthesis of nanoparticles. Reports on catalytic application of nanopartides made by laser ablation are limited.li65 A particular disadvantage is the slow preparation, although the laser beam can be split into several beams. Typically, only 4-5 mg of Pt nanop>articles is produced after 1 hour of laser work. This can be accepted in the case of model catalysts, where the material demonstrates excellent catalytic properties or high metal loadings are not needed. 

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