Nanotechnology

Nanotechnology also known as Nanotech is the study of handling matter on a molecular and atomic scale. Nanotech deals directly with the development of devices, materials or other structures that possess a dimension from one to one hundred nanometres.

This type of technology is diverse, ranging from extensions of conventional device physics to new approaches, which are based upon molecular self assembly. The development of new materials with dimensions on the nanoscale is useful for the investigation of whether they can directly have the control of matter on the atomic scale. The application of science fields that are known to be entailed by nanotech are: Organic chemistry, semiconductor physics, microfabrication, surface science, molecular biology and others.

The history of Nanotech can be traced back to the development of the concepts and experimental work that falls under the broad category of Nanotechnology. This type of technology is a recent development in scientific research. The development of its central concepts occurred over a longer period of time. The emergence of nanotech during the 1980s was caused by experimental advances like the invention of the "Scanning Tunneling Microscope" in the year 1981 and also the discovery of "Fullerenes" in 1985.

This field was subject to controversy and growing public awareness during the early 2000s with debates about its potential implications, feasibility of the applications envisioned by advocates of Molecular Nanotech and the movement to promote and fund research Nanotechnology by several governments. In the early 2000 the commercial applications of this technology began appearing. The applications of Nanotechnology are found in the following fields: Medicine, Environment, Energy, Information and Communication, Heavy Industry, Consumer goods, Sports and Agriculture. A great example of an application of Nanotech on the field of Medicine is the creation of the Nicotine patch, Estrogen patch and Methylphenidate patch to treat Attention Deficit Hyperactivity Disorder. There is also an application that is still on research and testing process called Transdermal Viagra patch to treat Erectile Dysfunction (ED).

According to researchers, Sildenafil Citrate, the main chemical found on Viagra, is difficult to be delivered through the skin because of its water solubility, poor membrane permeability and low oil. Scientists experimented with two types of nano carriers made using fat like lipid molecules. Both tests provided good results in the lab, but they haven't been tested yet on human skin. Scientists stated that if the patch becomes official approved to treat Impotence, it will provide the same positive results as if you buy Cialis or the more famous blue pill Viagra to treat Male Impotence. Egyptian scientists are the one's doing these studies and experiments for a successful and secure treatment against Erectile Dysfunction employing cutting edge nanotech.