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Atomic-scale imaging of DNA using scanning tunnelling microscopy


THE scanning tunnelling microscope (STM) has been used to visualize DNA1 under water2, under oil3 and in air4–6. Images of single-stranded DNA have shown that submolecular resolution is possible7. Here we describe atomic-resolution imaging of duplex DNA. Topographic STM images of uncoated duplex DNA on a graphite substrate obtained in ultra-high vacuum are presented that show double-helical structure, base pairs, and atomic-scale substructure. Experimental STM profiles show excellent correlation with atomic contours of the van der Waals surface of A-form DNA derived from X-ray crystallography. A comparison of variations in the barrier to quantum mechanical tunnelling (barrier-height) with atomic-scale topography shows correlation over the phosphate-sugar backbone but anticorrelation over the base pairs. This relationship may be due to the different chemical characteristics of parts of the molecule. Further investigation of this phenomenon should lead to a better understanding of the physics of imaging adsorbates with the STM and may prove useful in sequencing DNA. The improved resolution compared with previously published STM images of DNA may be attributable to ultra-high vacuum, high data-pixel density, slow scan rate, a fortuitously clean and sharp tip and/or a relatively dilute and extremely clean sample solution. This work demonstrates the potential of the STM for characterization of large biomolecular structures, but additional development will be required to make such high resolution imaging of DNA and other large molecules routine.

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  1. Binnig, G. & Rohrer, H. in Trends in Physics (eds Janta, J. & Pantoflicek, J.) 38–46 (European Physical Society, The Hague, 1984).

    Google Scholar 

  2. Lindsay, S. M., Thundat, T., Nagahara, L., Knipping, U. & Rill, R. L. Science 244, 1063–1064 (1989).

    ADS  CAS  Article  Google Scholar 

  3. Arscott, P. G., Lee, G., Bloomfield, V. A. & Evans, D. F. Nature 339, 484–486 (1989).

    ADS  CAS  Article  Google Scholar 

  4. Cricenti, A. et al. Science 245, 1226–1227 (1989).

    ADS  CAS  Article  Google Scholar 

  5. Amrein, M., Dürr, R., Stasiak, A., Gross, H. & Travaglini, G. Science 243, 1708–1711 (1989).

    ADS  CAS  Article  Google Scholar 

  6. Beebe, T. P. Jr et al. Science 243, 370–372 (1989).

    ADS  CAS  Article  Google Scholar 

  7. Dunlap, D. D. & Bustamante, C. Nature 342, 204–206 (1989).

    ADS  CAS  Article  Google Scholar 

  8. Gerber, Ch., Binnig, G., Fuchs, H., Marti, O. & Rohrer, H. Rev. Sci. Instrum. 57, 221–224 (1986).

    ADS  CAS  Article  Google Scholar 

  9. Saenger, W. Principles of Nucleic Acid Structure (Springer, New York, 1984).

    Book  Google Scholar 

  10. Keller, D., Bustamante, C. & Keller, R. Proc. natn. Acad. Sci. U.S.A. 86, 5356–5360 (1989).

    ADS  CAS  Article  Google Scholar 

  11. Lindsay, S. M., Sankey, O. F., Li, Y., Herbst, C. & Rupprecht, A., J. Phys. Chem. (in the press).

  12. Tromp, R. M., Hamers, R. J. & Demuth, J. E. Science 234, 304–309 (1986).

    ADS  CAS  Article  Google Scholar 

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Driscoll, R., Youngquist, M. & Baldeschwieler, J. Atomic-scale imaging of DNA using scanning tunnelling microscopy. Nature 346, 294–296 (1990).

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