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Den Unit #14
You Be the Teacher - Nanochemistry
| Question | Answer |
|---|---|
| Define nanochemistry | Branch of chemistry associated with the synthesis of atoms/molecules on the nano-scale. |
| Define nanoparticle | A particle on the nano-scale. |
| Define nanotubes | Nanomaterials made of small cylinders of carbon and boron nitride. |
| What is materials characterization? | The analyzing of the structure and properties of a material. |
| Define electron microscopes | Super-powered microscopes that are used to view particles on the nano-level. |
| Define "nano-" | A billionth (a nanometer is one billionth of a meter) |
| Define atoms | Subatomic particles, the "building blocks" for nanochemists |
| What are physical properties? | Properties involving physical attributes of materials. (e.g. Copper is soft in its graphite form but is incredibly hard on the nano-level) |
| What are chemical properties? | Properties involving the chemical makeup or interactions of materials. (e.g. on the nano-scale atoms/molecules move easier around each other than they do on a larger scale) |
| What is a catalyst? | A substance that speeds up a chemical reaction. |
| What is Molecular Beam Epitaxy? | A method used in nanochemistry; grows single crystals one layer at a time. |
| What are "nanowhiskers" | Tiny surface fibers that coat fabrics (such as blankets or clothing) that help stop dirt from penetrating into the fabric. |
| Define microelectronics | Electronics working at a micro-scale (e.g. microchips) |
| What is molecular manufacturing? | The making of nanomachines. |
| What is Moore's Law? | The name given to the constant increase in computing power as nanotechnology expands. Observed by Intel co-founder Gordon Moore when he noted that the # of transistors per square inch on integrated circuits had doubled every year since their invention. |
| What common everyday things use nanochemistry? | Medicines, microchips, makeup, deodorant, and sun screen all use nanochemistry. |
| What are nanotubes used for? | Insulating or conducting electricity. |
| What is nanochemistry about? | Finding ways to transform (nano)materials into solutions to solve problems. |
| What is a special characteristic of nanoparticles? | High surface to volume ratio. |
| How does a high surface to volume ratio effect nanoparticles? | Gives them extra chemical reactivity. |
Created by:
RogueHuckster
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