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Demonstration of the elusive concentration-gradient paramagnetic force.

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Journal of the American Chemical Society

American Chemical Society (ACS)

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      Abstract

      Using classical electrochemistry, it is demonstrated that the concentration-gradient paramagnetic force, FnablaC, is a body force proportional to |B|2 acting parallel to the concentration gradient of electrogenerated radicals. FnablaC can balance gravity, holding volumes of solution wherein mass transfer continues to take place by diffusion. In contrast to usual levitation forces, FnablaC does not depend on field gradients and may be present even in homogeneous magnetic fields. Understanding the properties of FnablaC is relevant to magnetic confinement and levitation and is speculated even to propulsion with objects having permanent susceptibility gradients.

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      Author and article information

      Affiliations
      [1 ] Materials Division, NASA Glenn Research Center, 21000 Brookpark Rd. M.S. 49-1, Cleveland, Ohio 44135, USA. Nicholas.Leventis@nasa.gov
      Journal
      J. Am. Chem. Soc.
      Journal of the American Chemical Society
      American Chemical Society (ACS)
      0002-7863
      0002-7863
      Apr 13 2005
      : 127
      : 14
      15810811
      10.1021/ja043169b

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