ABSTRACT
Particles in the nanosized range have been present on earth for millions of years and have been used by mankind for thousands of years. Recently however, nanoparticles (NPs) have attracted a lot of attention because of our increasing ability to synthesize and manipulate such materials. Today, nanoscale materials nd uses in a variety of different areas such as electronic, biomedical, pharmaceutical, cosmetic, energy, environmental, catalytic, and materials applications. Because of the potential of this technology, there has been a worldwide increase in investment in nanotechnology research and development (Guzman et al., 2006).
