Evolving technologies, chemical substances

It is accepted that society must proceed with due caution in evolving technology. Nevertheless, regulation of nanotechnology presents significant difficulties in the interpretation of what distinguishes nanoparticles as distinct chemical entities as compared with conventionally sized particles, and the science of risk assessment to determine possible hazards associated with the manufacture and use of these substances. 

Technology evolves dynamically through the development of new or improved materials, which in turn permit the creation of new technologies. Successful technology is usually crucially linked to leadership in materials science where advances often arise out of the close collaboration of physicists, chemists and engineers. The chemistry of substances available for use as materials continues to develop at the confluence of assessed physical properties, chemical... 

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