Could humans recognize odor by phonon assisted tunneling?

@article{Brookes2007CouldHR,
  title={Could humans recognize odor by phonon assisted tunneling?},
  author={Jennifer C. Brookes and Filio Hartoutsiou and Andrew P. Horsfield and A. M. Stoneham},
  journal={Physical review letters},
  year={2007},
  volume={98 3},
  pages={
          038101
        }
}
Our sense of smell relies on sensitive, selective atomic-scale processes that occur when a scent molecule meets specific receptors in the nose. The physical mechanisms of detection are unclear: odorant shape and size are important, but experiment shows them insufficient. One novel proposal suggests receptors are actuated by inelastic electron tunneling from a donor to an acceptor mediated by the odorant, and provides critical discrimination. We test the physical viability of this mechanism… 

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