Introduction
Does size matter? This question can either be an indication of some profound cutting edge concept or the beginning of a really bad joke. In this particular case, we shall explore the former and perhaps end this discussion with some form of the latter. Nanotechnology is a big word that is used to describe a science which deals with things that are really, really small. Engineer Wendy Crone from the University of Wisconsin-Madison explains, "Nanotechnology means working at the scale of molecules. When you put nano in front of meter that means that's a billionth of a meter. Nanotechnology is already starting to affect our lives, and it's anticipated that over the next 20 years it's going to have major impact on everything around us."
Why is nanotechnology perceived to be the next "big thing"? The applications for nanotechnology, also referred to as nanoscience, are numerous and far-reaching. Research is currently being conducted in areas as diverse as cancer treatments, self-cleaning windows and toilets, water purification, and cosmetics. In this unit, I want to introduce to my students a concrete concept of size scaling and how size relates to the structure and function of living organisms. In addition, I will explore the science of nanotechnology and the various applications that are available today as well as the potential for future applications.
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