Nanoparticle | Definition, Size Range, & Applications | Britannica
Nanoparticles can be classified into any of various types, according to their size, shape, and material properties. Some classifications distinguish between organic and inorganic …
Nanoparticle - Medicine, Diagnostics, Therapy | Britannica
Nanoparticle - Medicine, Diagnostics, Therapy: The small size of nanoparticles is especially advantageous in medicine; nanoparticles can not only circulate widely throughout the body but …
Nanoparticle - Pollution, Toxicity, Risk | Britannica
Types of nanoparticles that are emitted include partially burned hydrocarbons (in soot), ceria (cerium oxide; from vehicle exhaust catalysts), metallic dust (from brake linings), calcium …
Manufacturing, Food Processing, & Atoms - Britannica
2025年1月6日 · nanotechnology, the manipulation and manufacture of materials and devices on the scale of atoms or small groups of atoms.The “ nanoscale” is typically measured in …
Nucleation | Definition, Crystallization, & Facts | Britannica
In the former, the surface of some different substance, such as a dust particle or the wall of the container, acts as the centre upon which the first atoms, ions, or molecules of the crystal …
Nanoparticle - Materials, Coatings, Sensors | Britannica
Nanoparticle - Materials, Coatings, Sensors: Many properties unique to nanoparticles are related specifically to the particles’ size. It is therefore natural that efforts have been made to capture …
History, Technology, Process, Types, & Facts - Britannica
2025年1月9日 · refrigeration, the process of removing heat from an enclosed space or from a substance for the purpose of lowering the temperature.. In the industrialized nations and …
Nanotechnology - Nanotubes, Nanowires, Applications - Britannica
2025年1月6日 · Nanotechnology - Nanotubes, Nanowires, Applications: Carbon nanotubes have remarkable electronic, mechanical, and chemical properties. Depending on their specific …
Nanomedicine | Definition, Research, & Applications | Britannica
Work in novel therapeutics and drug delivery systems strives to develop and design nanoparticles and nanostructures that are noninvasive and can target specific diseases, as well as cross …
Nanotechnology - Molecular, Assembly, Fabrication | Britannica
2025年1月6日 · nanoparticles: hydrogen peroxide Nanoparticles of a gold-palladium (yellow-blue) alloy supported on acid-treated carbon (gray) directly catalyzing hydrogen peroxide formation …