Productive nanosystems: Difference between revisions - Wikipedia

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{{MolecNano}}

The [http://www.foresight.org/roadmaps/Nanotech_Roadmap_2007_main.pdf Technology Roadmap for Productive Nanosystems] defines "'''productive nanosystems'''" as [[Purpose|functional]] [[nanometer]]-scale [[system]]s that make [[atom]]ically-specified [[Chemical_structure|structures]] and [[Machine|devices]] under [[Computer_program|programmatic]] control, i.e. they perform [[manufacturing]] to atomic [[Accuracy_and_precision|precision]].

Present-day technologies are limited in various ways. Large atomically precise structures exist, in the form of [[crystal]]s. [[Complexity|Complex]] [[Dimension|3D]] structures exist in the form of [[polymer]]s such as [[DNA]] and [[protein]]s. It is also possible to build very small atomically precise structures using [[scanning probe microscopy]] to [[Donald_Eigler|manipulate]] individual atoms or small groups of atoms. But it is not yet possible to combine components in a systematic way to build larger, more complex systems.