With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Nanotechnology is manipulation of matter on an atomic scale.
text_B: Nanotechnology -LRB- `` nanotech '' -RRB- is manipulation of matter on an atomic , molecular , and supramolecular scale .. molecular. molecular. supramolecular. Supramolecular complex. The earliest , widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products , also now referred to as molecular nanotechnology .. molecular. molecular. molecular nanotechnology. molecular nanotechnology. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative , which defines nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers .. National Nanotechnology Initiative. National Nanotechnology Initiative. nanometers. nanometers. This definition reflects the fact that quantum mechanical effects are important at this quantum-realm scale , and so the definition shifted from a particular technological goal to a research category inclusive of all types of research and technologies that deal with the special properties of matter which occur below the given size threshold .. quantum mechanical. quantum mechanics. quantum-realm. quantum realm. It is therefore common to see the plural form `` nanotechnologies '' as well as `` nanoscale technologies '' to refer to the broad range of research and applications whose common trait is size .. applications. List of nanotechnology applications. Because of the variety of potential applications -LRB- including industrial and military -RRB- , governments have invested billions of dollars in nanotechnology research .. applications. List of nanotechnology applications. Until 2012 , through its National Nanotechnology Initiative , the USA has invested 3.7 billion dollars , the European Union has invested 1.2 billion and Japan 750 million dollars .. National Nanotechnology Initiative. National Nanotechnology Initiative. Nanotechnology as defined by size is naturally very broad , including fields of science as diverse as surface science , organic chemistry , molecular biology , semiconductor physics , microfabrication , molecular engineering , etc. .. molecular. molecular. surface science. surface science. organic chemistry. organic chemistry. molecular biology. molecular biology. semiconductor physics. semiconductor physics. microfabrication. microfabrication. molecular engineering. molecular engineering. The associated research and applications are equally diverse , ranging from extensions of conventional device physics to completely new approaches based upon molecular self-assembly , from developing new materials with dimensions on the nanoscale to direct control of matter on the atomic scale .. molecular. molecular. device physics. Semiconductor device. molecular self-assembly. molecular self-assembly. new materials. Nanomaterial. direct control of matter on the atomic scale. Molecular nanotechnology. applications. List of nanotechnology applications. Scientists currently debate the future implications of nanotechnology .. implications of nanotechnology. implications of nanotechnology. Nanotechnology may be able to create many new materials and devices with a vast range of applications , such as in nanomedicine , nanoelectronics , biomaterials energy production , and consumer products .. new materials. Nanomaterial. applications. List of nanotechnology applications. nanomedicine. nanomedicine. nanoelectronics. nanoelectronics. On the other hand , nanotechnology raises many of the same issues as any new technology , including concerns about the toxicity and environmental impact of nanomaterials , and their potential effects on global economics , as well as speculation about various doomsday scenarios .. toxicity. Nanotoxicology. doomsday scenarios. Grey goo. These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted .. regulation of nanotechnology. regulation of nanotechnology
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