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 - 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 …
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 - 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 …
Nanotechnology - Research, Applications, Implications | Britannica
2025年1月6日 · Researchers hope to design different dendrimers that can swell and release their drug on exposure to specifically recognized molecules that indicate a disease target. This …
nanoparticle summary | Britannica
nanoparticle, Ultrafine unit with dimensions measured in nanometres (nm; billionths of a metre). Nanoparticles possess unique physical properties such as very large surface areas and can …
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 …
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 …
Nanotechnology - Molecular, Assembly, Fabrication | Britannica
2025年1月6日 · Researchers hope to replicate nature’s ability to produce small clusters of specific atoms, which can then self-assemble into more-elaborate structures. A number of bottom-up …
Carbon black | Nanoparticles, Polymers & Pigments | Britannica
Furnace blacks are made in refractory chambers by incomplete combustion of any of various types of gaseous or liquid hydrocarbons. Thermal blacks are produced in the absence of air …