A brief trip through nanotechnology

What is the Nanotechnology?

What's different in this technology?

If you think of other technologies you can find biotechnology (tech associated to biology) or technology in engineering. But nanotechnology is about the size, and this is something powerful, because it's a technology which is not associated with any field but to the size, so we can advance and investigate from physics, chemistry, biology or medicine.
We talk about the science of what is small.

Nanotechnology or nanoscience?

Occasionally, people tend to get confused when using the term nanotechnology or nanoscience, and often many people assume that are the same thing, but this is not true.
We are used to study the science of some physical or chemical phenomenon and then, once we have understood what happens, we begin to develop technology associated to that phenomenon.
But when we focus on the nanoscale, we find physical phenomenons that we don't know how to explain, but what we know is how to apply the matter of this size to develop technology.
For the first time, the science is eaten by applicability.
We have the technology and we need to explain the science behind it.

Applications of the nanotechnology

Food industry

Why does the food last so long without expiring? Formerly, food used to expire in a short time, but now the wrapper were the food is stuck has nanoparticles, usually silver particles because silver eliminates bacteria effectively.