Regulatory demands in nanotechnology
In a general sense, exposure to nanoparticles is not a new problem. Human beings have been exposed to nano-sized particles since immemorial time to the natural sources of nanoparticles such as forest fires and anthropogenic sources such as industrial pollution. Recently, it has been proved that "Bhasmas' used in Ayurveda and homeopathic medi- cines are present in the form of nanoparticles