Nanomaterials refer to materials with at least one dimension between 1 and 100 nanometers. This scale grants them unique properties in various domains such as optics, electronics, thermophysics, and mechanics.
Classification of Nanomaterials
Engineered Nanomaterials
These are intentionally crafted materials, engineered by humans to exhibit specific properties, opening new avenues in various industries.
Legacy Nanomaterials
Materials that predate deliberate nanotechnology development but possess nano-level characteristics. Examples include carbon black and titanium dioxide nanoparticles.
Incidental Nanomaterials
Unintentionally generated through industrial processes like combustion and vaporization, including vehicle emissions and smelting byproducts.
Natural Nanomaterials
Occurring in biological systems or through natural phenomena, such as viruses, wax crystals, and volcanic ash. They encompass both organic and inorganic substances, showcasing diverse nanostructures.
Characteristics and Categorization
Nano-object Dimensions
Defined by the number of external dimensions falling within the nanoscale, including nanoparticles, nanofibers, and nanoplates, each with distinct dimensional attributes.
Nanostructured Materials
Categorized by the phases they encompass, such as nanocomposites, nanofoams, nanoporous materials, and nanocrystalline materials, each possessing unique structural compositions and properties.
Nanomaterials, with their intricate structures and exceptional properties, hold immense potential across industries, from electronics to healthcare, ushering in a new era of innovation and commercialization.
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