Changes

===Medicine===

===Medicine===

In medicine, nanotechnology is being used to develop new and more sophisticated methods of drug delivery<ref>http://www.sciam.com/article.cfm?id=size-shape-matter-nanotech-drug</ref>.  Nano-scale devices are also being developed to allow affordable, portable testing for diseases or toxins that can be used in minutes "in the field" instead of waiting for samples to be sent to labs.  <ref>http://www.azom.com/news.asp?newsID=14569</ref>

In medicine, nanotechnology is being used to develop new and more sophisticated methods of drug delivery<ref>http://www.sciam.com/article.cfm?id=size-shape-matter-nanotech-drug</ref>.  Nano-scale devices are also being developed to test patients for toxins and diseases on-site, so as to avoid the long, costly process of sending patient samples to labs.  <ref>http://www.azom.com/news.asp?newsID=14569</ref>

===Construction and Engineering===

===Construction and Engineering===