Nanoscale
Nanoscale objects have at least one dimension (height, length, depth) that measures between 1 and 999 nanometers (1-999 nm).
As stated previously, a nanometer is one billionth of a meter. Everyone struggles to imagine this very small scale, but you can get an idea through comparison.
Let's look at some commonplace objects. Pick up a book and look at the thickness of an individual page. The average page is about 100,000 nanometers thick. Remember, to be considered nanoscale the object must have one dimension between 1 and 999 nanometers, so this is definitely not within the nanoscale range. A very fine human hair is about 10,000 nanometers wide, which is the smallest dimension we can see with the naked eye.
Although technically nanoscale objects are within the 1-999 nm range, often when people refer to something as being “at the nanoscale,” they are speaking about objects smaller than 100 nanometers. Why? When nanoparticles are in the 1-100 nm size scale, unusu
ตอบลบSee video nano