Nanotechnology

The prefix "nano" comes from a ...

• French word meaning billion
• Greek word meaning dwarf
• Spanish word meaning particle
• Latin word meaning invisible

Who first used the term nanotechnology and when?

• Richard Feynman, 1959
• Norio Taniguchi, 1974
• Eric Drexler, 1986
• Sumio Iijima, 1991

What is a buckyball?

• A carbon atom (C60)
• Nickname for Mercedes-Benz's futuristic concept car (C111)
• Plastic explosives nanoparticle (C4)
• Concrete nanoparticle with a compressive strength of 20 nanonewtons (C20)

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Which of these consumer products is already being made using nanotechnology methods?

• Nano-Tex fabric
• Golf Ball
• Sunscreen Lotion
• All of the Above

What is a nanometer?

• 100 Angstroms
• 100 millimeters
• 1 billionth of a meter
• 1000 millimeters

What’s a Carbon Nanotube (CNT)?

• Nanotubes does not exist
• Tubular form of gold with a diameter of 1000 millimeters
• Tubular form of carbon with diameter of 1 nanometer and length of few nanometers to microns
• Tubular form of a buckyball

What is nanotechnology?

• Study and manipulation of technology that is micro sized

• Study and manipulation of matter that is small but can still be seen by the human eyes

• Study and manipulation of matter at a scale of 1-100 nano meters

• Study and manipulation of matter that moves at a speed measured in nano seconds

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synthesis of nanoparticles is possible with

• top down method

• bottom up method

• both

Why the properties of nanomaterials are different significantly compared to bulk materials?

• Quantum effect

• Confinement effect

• Synergistic effect

• Avalanche effect

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Why the properties of nanomaterials are different significantly compared to bulk materials?

• Increase relative surface area

• Decreased relative surface area

• Increased lattice parameters

• Lower down the melting temperature

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