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Single molecule electric motor : ウィキペディア英語版 | Single molecule electric motor The single molecule electric motor is an electrically operated motor which is made from a single butyl methyl sulphide molecule. The molecule is adsorbed onto a Copper (111) single crystal piece by chemisorption.〔 The motor, the world's smallest electric motor,〔(【引用サイトリンク】title=Single Molecule Makes Smallest Electric Motor, Marks Nanoscience Breakthrough )〕 is just a nanometer (billionth of a meter) across (60,000 times smaller than the thickness of a human hair). It was developed by chemists at the Tufts University School of Arts and Sciences and published online September 4, 2011.〔(【引用サイトリンク】title=World's Smallest Electric Motor Made from a Single Molecule )〕 ==Background== Single molecules motors have been demonstrated before. These motors were either powered by chemical reactions or by light. This is the first experimental demonstration of electrical energy successfully coupling to directed molecular rotation.〔〔(【引用サイトリンク】title=Single-molecule 'motor' measures just a nanometer )〕
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