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For an introduction to nanotechnology, see Richard Booker and Earl Boysen (2005), Nanotechnology for Dummies; Mark Ratner and Daniel Ratner (2002), Nanotechnology: A Gentle Introduction to the Next Big Idea; and The Royal Society, “Nanoscience and Nanotechnologies: Opportunities and Uncertainties”, 2004, available at royalsociety.org/~/media/royal_society_content/policy/publications/2004/9693.pdf .