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level: Nanoparticles

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level questions: Nanoparticles

QuestionAnswer
How small are Nanoparticles?-Around 1-100 Nanometres. A Nanometre is 0.000,000,001 m. -They have less than Thousands of Atoms, so they are bigger than Simple Molecules, but that's it really
What do Fullerenes have, that can relate to Nanoparticles?-They have Nanotubes, which is very Tiny Hollow Carbon Tubes -These tubes are Strong, because of the Covalent Bonding Carbon does
Nanoparticles have a high what to what? What does this result to?-They have a high Surface Area to Volume Ration. -This is because as Particles go down in Size, their Surface area Increases in relation with their Volume -This results into them having Different Properties to Larger Particles, as a more Percentage of their Atoms can interact with the Substances and Environment more Freely
Using Nanoparticles is known as ...?Nanoscience
What are some of the Nanoscience's that have been Created?-They are Very Good Catalysts [From surface area: volume] -Sun creams and Deodorants have been using Nanoscience. They do the Job and don't leave White Marks on the Skin -Nanomedicine; Fullerenes are more easily Absorbed by the Body, so they can give the Right Drugs to the Needed Cells -Lubricant Coating made via Fullerenes; they reduce Friction and can used in gears to artificial joints -Nanotubes can conduct Electricity; use for minuscule electric circuits -Nanoparticles added into Plastics in Sports Equipment, resulting in it being more Stronger and Durable, with no considerable mass change -Silver Nanoparticles added to Polymer Fibres, used for Surgical Masks etc... Fibres gain Antibacterial Properties
Do we fully understand what Nanoparticles can do to the Body? What does this lead to?-We still don't know how they Affect the Body fully -Nanoparticle Products are Tested a lot, to make sure the Risk is small -People may be worried that the Products with Nanoparticles have been brought out Before the Harmful effects have been Found out.