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Article overview
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Spectroscopy of biological compounds with inelastic electron tunneling | P K Hansma
; R V Coleman
; | Date: |
28 Jun 1974 | Journal: | Science, 184 (144), 1369-71 | Abstract: | Metal-insulator-metal electron tunnel junctions can be doped with a solution of an organic compound by placing a drop of the solution on the insulator and spinning of the excess. Electrical measurement of the second derivative of voltage with respect to current, as a function of applied voltage, then gives a spectrum of vibrational modes equivalent to an infrared or Raman spectrum, but with the use of only micrograms of sample. | Source: | PubMed, pmid4598036 | Services: | Forum | Review | Favorites |
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