"I keep hearing the word nanotechnology. What is it?"
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Nanotechnology refers to substances that are incredibly small in size. When something is within the nanotechnology scale it has more surface area and is therefore more reactive. The properties of a substance change when they are micronized. The most common form of nanotechnology that is incidentally perfectly safe to use is when Zinc Oxide and Titanium Dioxide particles are made to appear very translucent in physical sunscreens.

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