Is the magnetization of liquid Nano-composites a practical benefit in improving the quality and productivity of the plant, kindly who has research in this direction to provide us with many thanks?
You can read the following article as a suggestion:
Article Effect of Magnetite Nanoparticles (Fe3O4) as Nutritive Suppl...
http://en.cnki.com.cn/Article_en/CJFDTotal-LFYF201202015.htm
Thank you to all the researchers who participated in the discussion, with my best wishes for success.
Dear Maher,
When describing a nanomaterial it is therefore important to describe not only the mean particle size but also the size of the primary particles. In addition, information on the presence of agglomerates and/or aggregates should be presented. When the mean particle size deviates (i.e. is larger) from the primary particle size this would indicate the presence of agglomerates/aggregates. Scientific toxicological data suggest that the total surface area of nanoparticles is a reasonable metric to describe toxicological responses in biological systems. The total surface area should not be confused with the specific surface area (SSA) where smaller particles have a larger SSA independent of whether they are present as primary, agglomerated or aggregated particles.
When nanomaterials are used in test systems, one has to be aware that some of the properties which need to be determined are largely dependent on the surrounding media and the temporal evolution of the nanomaterials. Thus, a primary focus should be to assess the nanomaterials in exactly the form/composition they have as manufactured, and in the formulation delivered to the end-user or the environment if the formulation contains free nanoparticles. Electromicroscopy can be applied to measure nanoparticles. Nanometers can be prepared for biological testing.
Important physical and chemical properties of nanomaterials
The main parameters of interest with respect to nanoparticle safety are:
Physical properties
- Size, shape, specific surface area, aspect ratio
- Agglomeration/aggregation state
- Size distribution
- Surface morphology/topography
- Structure, including crystallinity and defect structure
- Solubility
Chemical properties
- Structural formula/molecular structure
- Composition of nanomaterial (including degree of purity, known impurities or additives)
- Phase identity
- Surface chemistry (composition, charge, tension, reactive sites, physical structure, photocatalytic properties, zeta potential)
- Hydrophilicity/lipophilicity
Ashish
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