What is the definition for ionic size?

What is the most accepted size definition of "nanotechnology"? What are examples of things already done at that scale?

  • Answer:

    In materials engineering, nano-scale is anything with dimensions on the order of a nanometer to tens of nanometers. (10 to the negative 9 meters) Applications usually involve taking advantage of the enormous surface area of these small particles. Gas sensing often uses gas/solid interactions that are enhanced with higher surface areas. Also, if you want to sinter a high density solid from particles, the higher the surface area of the feed, the lower temperature needed to achieve full density.

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