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Detection and identification of a single DNA base molecule using surface-enhanced Raman scattering (SERS)
Abstract
Nonresonant Raman cross sections of $\ensuremath{\sim}{10}^{\ensuremath{-}16} {\mathrm{cm}}^{2}$ per molecule are shown to be related to surface-enhanced Raman scattering (SERS) on colloidal silver clusters at near-infrared (NIR) excitation. The enhancement is found to be independent of cluster sizes between 100 nm and 20 \ensuremath{\mu}m. These experimental findings demonstrate that NIR SERS on colloidal silver clusters is an excellent technique for single molecule detection that is applicable for a broad range of molecules including ``colorless'' biomolecules, for example nucleotides in DNA sequencing. As an example, we present the detection of a single adenine molecule without any labeling based on its intrinsic surface-enhanced Raman scattering.
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Citations
Cited by
Shape Control of Colloidal Metal Nanocrystals
Tao, A. R., Habas, S., & Yang, P. (2008) · Small · doi:10.1002/smll.200701295 · Cited by 2,408
Characterization of Nanomaterials
Mudalige, T., Qu, H., Van Haute, D., Ansar, S. M., Paredes, A., & Ingle, T. (2019) · Nanomaterials for Food Applications · doi:10.1016/b978-0-12-814130-4.00011-7 · Cited by 261
Surface-enhanced Raman spectroscopy at single-molecule scale and its implications in biology
Wang, Y., & Irudayaraj, J. (2013) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2012.0026 · Cited by 125
Metadata
- Authors
- Kneipp, K., Kneipp, H., Kartha, V. B., Manoharan, R., Deinum, G., Itzkan, I., Dasari, R. R., & Feld, M. S.
- Venue
- Physical Review E
- Publisher
- American Physical Society (APS)
- Published
- 1998-06-01
- Volume
- 57
- Issue
- 6
- Pages
- R6281-R6284
- ISSN
- 1063-651X (ISSN-L)
- 1095-3787
- OpenAlex
- W2087249002
- Cited by
- 564
- References
- 0
- FWCI
- 7.54
- Type
- journal article
- Language
- en
- Open access
- closed
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