1. What are nanomaterials and how are they made?
Question: 1. What are nanomaterials and how are they made?
Nanomaterials are materials that have at least one dimension in the nanometer range, typically between 1 and 100 nanometers. They exhibit unique properties due to their small size, such as increased surface area and quantum effects. Nanomaterials can be made using various techniques, including top-down and bottom-up approaches. Top-down methods involve breaking down a larger material into smaller particles, while bottom-up methods involve building up the material from individual atoms or molecules. Some common methods for making nanomaterials include chemical vapor deposition, sol-gel synthesis, and physical vapor deposition.
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