Question

Which of the following are production methods of nanomaterials?

• A. Top-Down method
• B. Bottom-Up method
• C. Down-Top method
• D. A,B only

Answer 1

The correct option is D A,B only

Nanomaterials are not simply another step in the miniaturization of materials or particles. They often require very different production approaches. There are several processes to create various sizes of nanomaterials, classified as top-down and bottom-up. Although large numbers of nanomaterials are currently at the laboratory stage of manufacture, many of them already are being commercialized. Hence option D is correct.