兰大纳米化学PPT课件

Nanotubes are also known to have kinetic properties that make them get nested with
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4.Which is better in self-assembly: noncovalent or covalent bonding?
Answer: I think the noncovalent bonding is better, because the noncovalent effect is more reversible, that can make the molecule combined on their own, and get a lower energy ,they are more stable, besides they can also have self-healing. But when using covalent bonding , once having random error, it is more difficult to repair and very hard to get the lowest energy.
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7.What are the unique properties of caLeabharlann Baidubon nanotubes?
Answer:
Carbon nanotubes are generally regarded as the single hardest materials known to man.
A single walled nanotube is able to withstand a pressure that amounts to 24 GPa
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6.Image what you could do with chemical patterns?
Answer: It is used for the immobilization of enzyme, and the enzyme molecule is modified on the carrier. The surface modification of medical materials, such as the use of heparin to improve their biocompatibility in vivo
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2.What do you expect to benefit from “nano-technology”
Answer : I want to use the “nano-technology” to make me have an undying life. When some organs in my body become weaker, I may use the “nanotechnology” to change them and make me have a sound body and live long.
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3.Why interfaces are important?
Answer: The properties of can determined the function and the extrinsic properties of a materials. We can change the materials’ function by change the properties of the interfaces. The molecule between the inner and the interface are under different force, which cause the interface molecule have special properties than the side molecule.
1.List some products claim to be “nano-product” and give your opinions about whether they are real “nano” or not.
Answer: In my daily life, my mobile phone may become hot when playing games or having battery charging, so I bought a heat sink made of nanomaterial(graphene).I think if the material is really made of graphene ,it is a real “nano-product” because Nano-materials , refers to the size of its structural units between 1 nm to 100 nm range .
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5.What is the advantages of SAMS over the other molecular assembly systems, such as LB films and liquid crystals?
Answer: SAMS can use to improve the material’s surface function such as applying to reduce friction, anti-wear and so on.
SAMS has the advantages of high order and orientation, high density, low structure fault and stability.
SAMS can adapt to a variety of surfaces and also can change the type of chain to achieve different kinds of effect.