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Why does matter exhibit different properties when in nanoscale than when its is macroscale?


thethinkertank

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I just read this quote on wiki;

"Materials reduced to the nanoscale can show different properties compared to what they exhibit on a macroscale, enabling unique applications. For instance, opaque substances can become transparent (copper); stable materials can turn combustible (aluminium); insoluble materials may become soluble (gold). A material such as gold, which is chemically inert at normal scales, can serve as a potent chemical catalyst at nanoscales. Much of the fascination with nanotechnology stems from these quantum and surface phenomena that matter exhibits at the nanoscale.[26]

https://en.wikipedia.org/wiki/Nanotechnology

How is that possible?

For example why would Gold be soluble at the nano scale and yet not on the macroscale? 

 

Edited by thethinkertank
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