Silicon nanoribbons for electrical detection of biomolecules.

@article{Elfstrm2008SiliconNF,
  title={Silicon nanoribbons for electrical detection of biomolecules.},
  author={Niklas Elfstr{\"o}m and Amelie Eriksson Karlstr{\"o}m and Jan Linnros},
  journal={Nano letters},
  year={2008},
  volume={8 3},
  pages={945-9}
}
Direct electrical detection of biomolecules at high sensitivity has recently been demonstrated using semiconductor nanowires. Here we demonstrate that semiconductor nanoribbons, in this case, a thin sheet of silicon on an oxidized silicon substrate, can approach the same sensitivity extending below the picomolar concentration regime in the biotin/streptavidin case. This corresponds to less than approximately 20 analyte molecules bound to receptors on the nanoribbon surface. The micrometer-size… CONTINUE READING
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