Nanotechnology Overview in Cosmetics

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Questions and Answers

The first part of the title of the article shows the topic and the second part shows the topic.

The first part of the title of the article shows the _ topic and the second part shows the _ topic.

general, specific

What main idea does the metaphor in P1 illustrate?

Manipulating atoms and molecules on a nanoscale is like building things with LEGO. (correct)
Using nanotechnology you can manipulate objects at the nanoscale.
Nanotechnology is a very promising area of research and development.
The ability to make new things on an incredibly small scale is fun.

Match the terms from the box below with their definitions.

Electron microscope = It is the study of things in order to know more about them. Science = A powerful instrument that enlarges tiny images. Technology = It is the application of science in order to solve a problem. Nanoscopic = It describes something which is a billionth of a meter in size. Signup and view all the answers

What "new meaning" does science and technology gain on the nanoscale?

At the nanoscale, scientists are able to study and learn how atoms and molecules actually work. (B) Signup and view all the answers

What is the difference between nanoscience and nanotechnology?

Nanoscience studies how things work at the nanoscale. Nanotechnology uses this knowledge from science to create useful tools or products. Signup and view all the answers

The nanoscopic scale is sometimes marked as the point where the properties of a material _ their properties. At this scale, the atoms and molecules _ differently. Since many chemical and other physical reactions happen at the ___ of a material, this exaggerates a nanoparticle's properties.

change, behave, surface Signup and view all the answers

What two examples do the authors provide to illustrate the idea mentioned above (See 5a)? Give two examples.

Gold become chemically active. Carbon become super hard in nanotubes. Signup and view all the answers

What is the dominant factor on the nanoscale?

Electromagnetic force (A) Signup and view all the answers

AFMs, SPMs, and STMs are similar in that they are all types of _ that enable scientists to _ and ___ atoms on the nanoscale.

electron microscopes, see, manipulate Signup and view all the answers

What point do the examples in paragraph 10 illustrate?

Materials and products based on nanotechnology are already in use. (B) Signup and view all the answers

Carbon nanotubes are very strong due to their _ and how they _ together.

dense structure, bond Signup and view all the answers

What is the connection between Moore's Law and nanotechnology?

Moore's Law describes the trend of increasing computing power, and nanotechnology helps make smaller and more efficient electronic components. Signup and view all the answers

What natural example does the example refer to in the first sentence of paragraph 14? (Natural examples like this...)

E. Coli bacteria use a tiny nanotech tail to move. Signup and view all the answers

What were the main contributions to nanotechnology of the following individuals?

Bill Clinton = He initiated the NNI, the US federal government program for the science, engineering, and technology research and development for nanoscale projects. Eric Dexler = He published a book that popularized the potential of molecular nanotechnology. Richard Feynman = He came up with the concept that atom and molecules could be manipulated. Norio Taniguchi = He coined the term "nanotechnology" for studying atoms and molecules at the nanoscale. Eric Pexler = He is a nanoscientist who is considered the "father of" carbon nanotubes. Sumio lijima = He published a book that popularized the potential of molecular nanotechnology. Signup and view all the answers

What main point does the author want to make in paragraph 17?

Although the technological advances of the 20th century changed our world, those of the 21st century will bring even greater change. (C) Signup and view all the answers

What main concern does the author have regarding nanotechnology?

Its complexity could make it difficult to fully understand and control its effects. Signup and view all the answers

Is the author optimistic or pessimistic regarding the future of nanotechnology?

Optimistic (A) Signup and view all the answers

Support your answer to the question above with a quote from the text.

The author mentions that the benefits of nanotechnology will come in the future, but it is already having a positive impact. Nanotechnology will influence every area of technology and science. Signup and view all the answers

As head of logistics, what would be your main concern about using cosmetic products with nanotechnology?

Safety and potential toxicity of nanotechnology in products. Signup and view all the answers

What do you think would be the main benefit of using cosmetic products with nanotechnology?

Improve product performance and functionality. Signup and view all the answers

Flashcards

Nanotechnology

The manipulation of matter on an atomic scale.

Nanoscience

The study of materials and systems at the nanoscale.